We rented a car from them on 10/22/25. We drove the car about 60 miles to Palm Springs and noticed a funny sound while driving. A day later, the right rear tire was flat (nail) and we were told to take the car to America's Tire to get it fixed. When they measured the remaining tread, they found it down to 2mm and wouldn't touch it, saying that both rear tires would need to be replaced. After a half hour of trying to get through to someone, they finally authorized replacing those tires with the cheapest ones available. It is a credit to the tire place that they got them on in under 20 minutes and we were on our way. But the fact that the car was never inspected for tread prior to renting it?!? We will never rent from them again. They did give us a 30% discount upon returning the car, but IMO that doesn't make up for the potential danger they put us in. Tires should be replaced once they are down to 4mm. read more

A strange location and we were picked up in the car that we were renting. Staff was friendly, and of course the prices were better than any other major car rental ($280 for 6 days and a drop off at John Wayne airport). The car ran good (it was surprising that the car had over 95,000 miles on it) minus some squeaky breaks on the CA highways. Close to the airport and dropoff in Orange County was easy as well. 2023 #16 read more

Highly recommend, super helpful with my mom when she was in an accident and paying out of pocket. They found a car in her budget and really helped her out. Thank you Tom and special shout out to Miguel and Ricardo! Thanks guys!!! read more

They are absolutely the most desperate garbage car rental place I have ever been too. They rented me the only car that looked decent (blue sports hyundaj) and the tire exploded half way through the week. I ended up paying 700 instead of 200 cause of the 450 deposit. I hate their cars and i they deserve to be shut down. THEY HAd THE NERVE to call me drunk and called the cops. THE cops showed up and said i was good to go. I hate this place never rent from these good for nothings dirt bags. You have been warned. read more

United's location is offsite so you will need to call for a pickup from Ontario airport to their building. The wait for me was about 20 minutes, but the location was about a half mile from the terminal. Another 20 minutes wait for a young man to come to the counter. It was around lunch time, and by the looks of the front of the office, it seems like they don't get a lot of people in and out. There were some tires next to the seating area. Oddly, there were two people in a connected office with an open door talking, but I got no help from them. Eventually, the man working the counter got back from lunch break and went through my paperwork. Bring your printed online reservation form! I'm not sure if this is common, but they charge your credit card for a deposit in advance. Most rental companies I've used will take down the deposit information and not charge your credit card, but United charges the card and issues a refund once the card is returned. That seemed odd. Another odd thing was the car they shuttled me from the airport was the same car they rented me, a white Nissa Versa. We did a run through of the car's condition noting the dings, scratches, and cigarette holes in the seats. Car ran fine during my 5 day rental period. The return process was quicker. The young lady who was working the counter went through the paperwork and car inspection quickly. She also drove me to the airport. Again, same car as the rental. Pros: Cheap! Cons: Office is understaffed but customer service was OK. read more

United Auto Rental - Policy posters on the wall - Car Rental Near Me - Ontario, California

My rental car looked quite beat up, many scratches and dents, had over 80,000 miles, and the brakes were soft. They pick you up from the Ontario airport in an unmarked car, so I was not comfortable with their procedure. They return you to the rental office, about 1 mile away from the airport, and the car I was picked up in is the car I was given for my rental (an old Nissan). My flight left before the office opened, and their procedure is that you leave the car in the Ontario parking lot, with the keys locked somewhere inside, and they pick it up later. They also charge you the fee for parking. Since my flight was changed to early morning, I searched the paperwork and the website for the procedure of early morning return, and there is zero information available. I was forced to call the number for emergency roadside assistance, and find my procedure for car return. Just pay the extra $40, and get a big-name car rental for your safety and peace of mind read more

I must say this has been the most pleasant and most professional place to rent a vehicle from, hands down. The professionalism from "Martin" the customer service and the quick and easy going process to get you on the road by far has to be the place to Get a rental, weather is short term or long term their hole team is on it and they will assist you in every way they can. The communication is def A1. Thank you Martin for all your hard work and keeping me safe and on the road when I needed a vehicle! GREAT AMAZING JOB! Everyone must rent here with confidence A+ Thank you read more

If I could give them zero stars I would. Tom the general manager of this facility who now claims to own the facility, sold me a car from their rental fleet without disclosing the car had damage knowingly. A chunk of the transmission was even broken off. He accepted no responsibility called me a liar and told me I had caused the preexisting damage to the vehicle. The car has body frame damage. I drove from over an hour away with my 6 year old son paid $7k in cash and having to deal with a dishonest crook is frustrating. He wouldn't even give his full name. You can tell a lot about this location by the way the general manager conducts business. 0/10 I would not give this company any business. read more

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I was in a pinch when my old Audi gave out during the first week at a new job and United Auto Rental saved me. The staff was exceedingly professional and the rates were better than anywhere else. There was no line and the entire process to get the car took less than 10 minutes. They even pulled up the car to the front - true red carpet treatment. The car I rented was a new Hyundai which ran great during the week I rented it. In summary, I would highly recommend United Auto Rental to anyone in need of a rental car in the Inland Empire. read more

We rented a minivan to drive full family to graduation. It was very clean, and the second row of bucket seats were very comfy. The check in and out was very quick and easy. Will use them again! read more

Wow, What a fantastic experience i had with United auto rental, everything was top notch. the staff was incredibly friendly and helpful, making the process a breeze. The vehicle i rented was implacable condition and drove very comfortably for our trip to Las Vegas. i appriciate the clear communication about pricing and returning the vehical took only 10 minuets. read more

Heads up: this business is not reachable by the airport shuttle, as it is not located with the other airport car rentals! They offer to pick you up/drop you off, but your time is not their priority. If you're going "cheap" and reserve here - cushion your calendar and take deep breaths. read more

I needed a car during my stay, and the prices here were the best deal around. When I got to their office, everyone was really friendly and helpful. The front desk explained things in detail and when I returned the car there were no surprise charges (most of the times when I'm renting a car they add random charges that was not indicated at the beginning but the front desk had explained what charges would occur and why). The process was rather expedient. The car was in really good condition, very clean, and ran smoothly. Overall I would absolutely recommend renting a car here. read more

Rented a car for a week. Grate car no issues. Tom the gentleman that help me out had grate customer service. I'll be coming here to rent cars from now on. read more

United Auto Rental - Car Rental Near Me - Ontario, California

Awful service Awful vehicles Awful policies As an established renter, just outraged and disappointed by the terrible customer service. Do not rent take Uber to a national brand read more

Don't waste your time just to save literally only a few bucks. You have to call them at the airport and wait for them to come get you, then when they finally show up, you have to take another 10 minute drive with them to their off site office, which has used car seats and other random car parts strewn across the floor, and signs being held up by duct tape. They instructed me to leave the car in the airport parking lot, then charged me $24 for parking exactly where the map they gave me showed me to park. The quality of the car I rented was sub-par for what I paid and would have received elsewhere, and the trunk of the car wouldn't stay latched when I parked the car at the airport. All this while the check engine light was on. The whole business just seems completely sketchy. read more

After years of using the bigger guys for auto rental services I was a little wary of using an independent company - but fear not, folks. The guys at UAR hooked me up. I just needed basic transport to get me around while visiting my fam for five days and did they ever come through... My contract was for a compact car for approx $145. I returned the car about an hour early and Andre knocked another twenty bucks off my total. Final bill: $125.42 for a Saturday-to-Wednesday rental. Amazing. No muss, no fuss, and they dropped me right back to the airport in plenty of time to make my flight home. I say, if you're in need of decent wheels and don't have to have a brand new car (my ride was a 2015 Sentra) then give United Auto Rentals your business. read more

Amazing service, helped me get a car when flying in from Canada when no other company would without a 24 pre booking! Very clean environment and amazing staff ! I will definitely be back in the future read more

This was my second attempt renting a car but this one was successful. It was super easy and so convenient. I will definitely be recommending this place to family and friends and will be renting again when I need to, thanks!!! read more

United Auto Rental - 2020 Hyundai Accent drives super smooth and has neat features. - Car Rental Near Me - Ontario, California

Worst place ever!! Do not come here!! I booked a reservation over a month in advance and they didn't have a van for me! Don't fall for there deals it's total bull shit!! read more

First of all, when we arrived to pick up the car we reserved, they said they were all out of that car so they gave us a different car that they referred to as an "upgrade".....which it was not. The car was disgusting when we got it (crumbs in the seats, cigarette holes in the seats, and terrible smell). Then half way through our trip, the check engine light came on and it started leaking in all the driveways we were parked. When we called to ask them what to do, they said to keep driving it (with the check engine light on and it leaking all over the place) or turn it in early and get a different car (which is not convenient as we were travelling for a funeral). We decided the safer of the two options was to turn it in early and asked for a discount for the inconvenience of it all. All they gave us was a deduction for the day we didn't use it and the day we turned it in early, which didn't add up to much. Now we are left to clean up the driveways and all they told us to do was buy some kitty litter for the stains. Overall a bad experience and would not recommend them to anyone. Won't use them again. read more

United Auto Rental - Car Rental Near Me - Ontario, California

I'm very satisfied with this rental company. They offer affordable rentals. I would highly recommend their service. United Auto policies are very transparent. Martin the employee there was very attentive and helpful. I rented a Nissan Versa 2018. It is a clean and a reliable car. I had the rental for 11 days. If I could give them 10 stars I would. Thanks again!!! read more

Hands down worst rental experience of my life. I used to work for a rental car company, so can attest to how poorly run this business was. We arrived at the Ontario Airport and took the car rental shuttle to the rental terminal before realizing our mistake and that this company was actually located in a strip mall on it's own about a mile away from the other car rental companies. I called the shuttle number provided and let them know about our mistake. The United employee on the phone said they could pick us up from the rental car terminal and take us to their location, it would be about 10 to 15 minutes. Well, 25 minutes later I called to ask ETA for our shuttle and the guy told me they were picking up several passengers who all arrived at the same time. After waiting 5 more minutes, we ended up calling a LYFT to take us to their location as we were on a time schedule and had flown in that day to get to a funeral. We arrived to their branch to walk into their lobby and see a pile of seats that had been ripped out of a car and stacked right in the area that they were running their business out of. We also arrived to a line of 3 other people in front of us...the people I assume had landed after us and actually been picked up, as the shuttle van they described was sitting in their parking lot when we pulled up. We waited a good 45 minutes for our turn in line to get our car. Apparently their computer system rebooted during that time. While we were waiting, I heard the guy processing people offer an upgrade to a luxury car, a Chrysler 300 to everyone in front of us which they all turned down. The people in front of us all got brand new looking, clean compact cars (which is what I had reserved when I set up my reservation over 2 weeks ago). Anywaya, when we got up to the front, he offered the same upgrade, to which I said, " I know this game, you guys are running out of cars so now offering an upgrade. If its free, sure! We will take it" it was a free upgrade but what homeboy failed to mention was that the car had been in an accident and they were planning to send the car to the body shop and sell it off. His manager came through and mentioned those facts. Said we could come look at it and if we didnt want it, they would take us back to the terminal to see if we could rent from someone else. While I appreciate his honesty, at that point we had landed at 10 AM and it was now 11:45 and we needed to be at the funeral by 1 which was an hours drive, so we had not choice but to take the car. He did offer us a whopping 20 percent discount off of our rate. When I got into the car (former rental car employee here, remember) it had stains everywhere, someone had tied an air freshener (one of the little tree kinds) to the seat belt buckle to try to disguise the fact that the car had obviously been smoked in and possibly flooded, based on the moldy smell. It also had over 100K miles on it. Most reputable rental car places will sell off fleet after about 30 to 50K miles because the cars start getting a lot of wear and tear. I will say the car got us from point A to point B but it was disgusting. Also, the guy working the front when we returned the vehicle was not the friendliest. I know rental companies are short on fleet right now but again, as someone who worked at some very high volume branches, I can say I would have never put a customer in that vehicle. I will definitely never rent from an "off brand " rental company again after this. Hertz all the way. read more

United Auto Rental - Nice dented up front - Car Rental Near Me - Ontario, California

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Best rental experience yet! Inexpensive with a friendly, non-pushy staff. No waiting. No spiked parking lot where you hope you are driving in the right direction. Was given a brand new 2023 Toyota Corolla without requesting any special treatment. The price was well below any other offers out there. Will be our go-to rental place going forward. A++ read more

The worst service from a corporate manager ever!! I reserved a rate that has been showing for last 2 weeks. I finally pulled the trigger and booked it and got a cancellation saying it was a glitch and the cost is actually $100 more!! I called and the corporate manager and he was so rude and was like "take it or leave"'and refused to match the price. I've never heard of such a thing. I told him it sounds like a scam and he's like well it is what it is. Wowwww ok. read more

This business is a criminal enterprise. To all interested in renting a car from this establishment. Understand this, this place of business is a criminal establishment. They confiscated my mail and held it for ransom as it was in the rental car that I rented from them. Whatsmore, the mail included IRS mail which had personal information, including social security number, and other such information. Their cars are also dangerous to rent. A car that I rented from them had a horn that didn't work. Their reaction when I called them out on it was one of defiance and hostility. There are so many car rental places. It's wise just to avoid this one. read more

The customer service here is great! The vehicles... not so much. Doesn't matter what you reserve online, you'll get what they have available. And if you're pregnant or sensitive to cigarette smoke, this isn't the right rental company for you as both cars we rented REAKED. Otherwise, quick and easy service, and friendly staff. read more

Very friendly and good pricing as well. I will definitely use them again when in the area

Martin is awesome. He has amazing customer service skills. Hes always very helpful and professional. The other latino gentleman who brings you the car is also very cool and professional. Before United Car Rentals, i used the other rental places and they were all ok. I'll continue to use United Car Rental because of the great customer care & Martin. He makes it a great experience. Thanks Martin for everything. Also, thank the other gentleman. I forgot his name. He was a really cool guy, too. Manuel Ray Muro read more

Excellent service from Rob! From coming tru in a shuttle at the airport to be picked up- to his great customer service in office. Our initial booking we had with another car rental didn't work out and found United Auto Rental, which we are glad we did. Rob made the entire process super easy, friendly and quick! read more

May be the best rental experience I've ever had. I used to rent a lot of cars too (through the "big guys") on a corporate account, but this trip was for leisure rather than business. I can't remember a time when I was given a car that did not have something wrong with it-- I'd begin driving off the lot and see "Oil change needed" or "service engine" or a light wouldn't work, or a tire had low pressure... always frustrating and time-consuming, but that was absolutely not the case here. When I reserved the rental I was skeptical because of the price. But they picked us up from the airport very quickly, as promised, in a car rather than a van which was nice. When the girl opened the trunk of the car to help us with bags, she found a camera from the previous customer that was left in the car. She immediately called the location to see if the customer was still there. That was really cool to see, because I once lost my favorite sunglasses in a rental and when I realized it 20 minutes later and called them, they said nothing was in the vehicle... The United Auto Rental office is nothing special. But the experience was great. They're a smaller operation, so when you call, you get a person not a machine, and I never had to wait in any lines. Everyone was helpful and personable. The car was nothing special, but it worked, with zero problems. The best part was the rates I paid. Overall, I trust these folks and will definitely be renting again from them next time I fly into Ontario. It was such a pleasant surprise :) read more

I'M BACK WITH ANOTHER REVIEW. If I can give this company 0 stars I would. In fact, I'm going to report them to the BBB for unethical business practices....Hi United Auto Rental HQ...I know you're reading this..... expect to hear from me very soon :) Future renters reading this BEWARE...seriously. DO NOT RENT FROM THIS COMPANY...I REPEAT..DO NOT RENT...Save yourself the frustration, rise in your blood pressure, and overall dissatisfaction in service. I stand by my last review from November 2019 that you are far better off renting from the car rental companies closer to the airport..they're more expensive yes but also just more established with better business practices and customer satisfaction and service. There's a reason why there is a decent number bad reviews for this company and the fact that they have a dismal 3 star rating..that's because they offer 3 stars and less service, PERIOD. If you're on a 3 star service budget, then go with this folks but don't expect anything above and beyond 3 stars. I left a poor review for this company a few months ago, no big deal right? Companies that care about the customer's experience and satisfaction go above and beyond to ensure the customer is happy in the long run....in 2020, we all know this now right? It's standard part of the digital customer service experience. Did I get that after my last review? no! As a consumer it's in my absolute RIGHT to leave a negative review without getting any repercussions whatsoever........... so here I am, having to fly into Ontario airport last minute, which means I also need to book a rental car last minute..of course as a typical consumer I want to find the cheapest car rental, so a quick google search will show you United Auto Rental has cheap cars, so I went that route even though truthfully I didn't want to (because of my last experience) While I'm making my way to Ontario, United Auto Rental leaves me a voicemail to tell me they can't rent a car to me because I'm on a "Do Not Rent" list because of my last negative review. Can you believe that? A "do not rent" list because as a consumer I exercised my first amendment right which is FREEDOM OF SPEECH to share my experience to future consumers. So not only is this discrimination, it's illegal. Read that again HQ (because I know you're reading this)...your business practices are discriminatory and illegal. So not only did I arrive into Ontario airport feeling some what like the rug was swept right from underneath me because I expected to get a rental from them, they also FAILED to answer the phone after numerous attempts to reach them..when I finally got someone on the phone that's when they once again told me I can't rent because I'm on the do not rent list...I told him that was complete BS and they can expect to get another bad review. Only this time, I'm not going to stand for terrible customer service and discriminatory practices that retaliate against my first amendment right. Again.......save yourself the frustration and go with a more reputable and bigger branded company for your next rental car. read more

All I can say is Martin is AWESOME!!! I had an issue with my car and needed a rental. He went above and beyond to accommodate. He was very kind understanding and friendly. He kept his word which made the situation I was dealing with less hard. Thank you so much Martin. I know where I will be renting from from now on. read more

Do not rent from this company. I made a reservation in the Ontario CA location only to find out that there is no car available. The cars that they did have available looked like a bunch of junk. I thought I was in a used car dealership. Save your troubles and rent a car from a brand name company. I ended up going to Hertz and for the same money got a brand new rental, not a used junk. read more

We reserved a minivan, but they "had an accident". I ended up with a "complimentary upgrade" to an SUV. The SUV was old, not well kept and smelled of smoke. Someone had tried to siphon off gas (they knew) and the hose broke in the gas tank, which they did not know. That made it impossible to fill gas. On the other hand, the price was great and the car worked. The employees were friendly and efficient. I would not rent from here again IF there was a cost effective alternative. read more

Never again. 1) Car was supposed to be at the airport, its down the street. 2) I flew into LAx and out of Ontario. They said they were doing me a "favor" by giving me unlimited miles, eventho the internet said unlimited, they claimed you needed to fly in and out of the same airport. 3. I picked up at 12, but needed a return at 2, so I said I could wait, they said they'd just make it 2. 4. I got the insurance that you can walk away from, but it only covered damage to their cars. 5. When I got the car and for 4 days cost over 200. The car was damaged, old, and everytime I came to a stop, the car would act like its going to stall.. 6. When I returned the car, the guy tried charging me for 5 days of ins, not 4, saying the previous was an estimate, but because I returned it after 12, it charged another day, eventho he agreed to 2pm. He argued for about 30 mins trying to overcharge me. Then he finally took it off, saying he couldn't take the tax off though. 7) Made me wait 30 mins to be taken to the airport down the street for my flight.. They should have discounted the bill for the condition the car was in. Never again. read more

SPEND THE EXTRA CASH AND RENT FROM A MAJOR RENTAL CHAIN!! Biggest mistake I made on my trip to California from Texas, was trying to save a few dollars and going with this rental company. I regret not spending the extra money and renting from a major rental company inside the Ontario Airport. The "Standard" size vehicle i was given was a 2015 Ford Fusion with 60k Miles. Scratch's, dings, and scrapes all over the body of the vehicle. The interior was filthy. I drove this car from Ontario down to Redondo Beach, and the car stalled on me. After several attempts I got the vehicle to start and I had a check engine light on the dash board. I drove back to Ontario to swap the vehicle out for another one. I was then given another 2015 Ford Fusion with almost 90K miles. I told the guy at the desk, " were driving to Palm Springs tomorrow, will this car make it?" Upon arriving to Palm Springs, I had all kinds of warning lights on the dash board, "Service ABS"," Service TRAC" " Service Hill start Asst". Vehicles are in horrible cosmetic and mechanical condition, and have excessive mileage and wear and tear on them. I would give them 0 stars if I could. Extremely disappointed with this company. read more

Martin took excellent care of me. Got caught in traffic and barely made it back to the office at 6p. My flight was at 6:30. Martin checked me in right away and took me straight to the airport. Was able to make my flight in time and the rental process was smooth from beginning to end. THANK YOU MARTIN! read more

We had to rent two 15-passenger vans for a relay race in Southern California. We were a bit late in registering for the race, so most of the van rental places in the area were booked. United Auto Rental had vans available, and easily had the lowest prices around. I was honestly surprised by how great the service was throughout the whole process: - A week before the race, they called me to confirm the rental details and wanted to ensure that I could get to the rental place. - When we picked up the vans, the process was quick and painless. Friendly folks at the counter. - When it came time to drop off the vans, we had to work through some tricky logistics. UAR was helpful with the process and suggested dropping off one of the vans at their Newport location. (Side note: the folks there were also super helpful and friendly). - I appreciated that they called me ahead of closing to be sure I could get to the airport/hotel after dropping the van off. I mentioned that I would be staying at a nearby hotel, and could just take a Lyft there after dropping off after-hours. They said, "why don't you just leave the van at the hotel, and we'll pick it up in the morning." Awesome service. I've had to coordinate vans for six different relay races now, and United Auto Rental was hands down the best that I've worked with. Honestly, the great service was above and beyond other companies that I've rented from for much, much more. Thanks again! read more

This place is GARBAGE. Don't bother renting here. Stick to the car rentals spots close to the airport. The guy I worked with was a complete asshole and they failed to tell me important information about my car return which resulted in me missing my flight and having to pay an arm and a leg to rebook it. read more