This has probably been the best all around visit to a Dennys, the service was fantastic from the moment I walked in, the few workers that were visible were working like an efficient machine ,with smiles at 830pm. The food, country fried steak with corn and potatoes and a side of beef vegetable soup and garlic bread, was all very good as well. I hope management recognizes these workers, don't let them go. Obviously the cook was great too! read more

Kimberly is the best! Came right away and greeted us . Our food was out in a timely manner and she took good care of us. We love going here for our family breakfast. read more

Norma was great and attentive (: She was very happy and kept the environment positive even with my requests and staying long because of work I needed to finish on laptop. Thank you! read more

If you're looking for a good homey food spot this is the one. It had good customer service especially our server Victor S he was very helpful and filled our needs. He was really nice and made sure everything was served. read more

The food was good not hot. Service very slow only one girl taking care of all station orders host manager would help bring food. Took forever to get 2nd cup of coffee since the guy at register was just wandering, then he would bring food and DIDN'T wear mask ever even when he would bring food to table. Think might be a manager. We were there at 1030 a.m. Feb 15 just 2 of us. The door says to wear mask buy so many people not when entering all staff wore there's but the main guy did wear his at register or when bringing food. read more

Excelente servicio por parte de don René, lugar muy limpio y servicio rápido.. Altamente recomendado

Worst Dennys. I called 5 times and there was no answer. I wanted to make a quick change to my to go order that I made online and when I called and pressed 2 it kept hanging up. Called multiple times and nothing. read more

Great Customer service by Norma. Very friendly! Fast service for seating and bringing food out! Food was great recommend the Beetlejuice Burger! read more

Jessica was very welcoming and attentive:) the restaurant was very clean and the food was great 10/10

Muy buenos los alimentos,la mesera Linda muy atenta y al pendiente de lo que necesitabamos,y el ambiente muy agusto

They claimed not to have some menu items but I saw them take it to a table 30 minutes after they told me they didn't have it..I ordered a salad and it was full of lettuce core....the servers were nice read more

Amazing service! Norma was my server and did a great job with my order. Food was served fast. And correct order was served. Recommend this Denny's! read more

Sergio was a really good server he made sure that we had everything we needed. I 100% will recommend this location to anyone that's in the area. read more

We had Sergio as our waiter. Very polite, responsive, and quick. They seemed short staffed, but Sergio managed to attend everyone at Dennys at a great pace. read more

Some waitress lady name Norma was very rude to my grandma I don't know it's because she was in a bad mood that doesn't matter it's job especially my grandma was being nice so she should be the same way too and was acting like if she couldn't understand me or my grandma, Everytime my grandma ask for more coffee it was like she was ignoring us so basically we had worse service with her because she wasn't nice or patient at all and too she was screaming to other people across the table to I don't know if workers or customers she had a attitude and everything her voice hopefully y'all could fired her because my grandma is the sweetest person you could ever meet worse Denny's don't recommend coming her if you want bad service. read more

I stayed overnight at the Quality Inn next door which is how I found out about this place. I've been to enough Dennys around the nation as I am a truck driver. I noticed there is a bar/lounge inside this place. So I figured they would have your typical bar food. I walked in the door and no AC. It's summer, what the heck? Then I find out the bar is closed because t he bartender is sick. I questioned 3 times about a food menu from the bar until the dense waiter finally understood what I was asking. "No they use the same menu as us." Which I really was not interested in. So I ordered a glass of tea. Then came the bill. $4 for a freaking glass of tea!? WTF! And I thought those truckstop Dennys price gouged their customers. If I ordered anything else I would've gone homeless! read more

Angelina V was a great server. Very attentive and met our requests. Food was great. Definitely recommend the brioche French toast

Good food,Good life and always amazed of Norma service, she's always on top of everything and making sure everything is good. The ambiance is Superb, I highly recommend, the food is always amazing and the service is always fantastic!!! A Big Thank you to Norma, shout out to her for always being amazing . read more

Denny's on Vineyard & G St. in Ontario is always great. Our waitress, Norma, provided excellent service with a really positive vibe. This Denny's is our spot and we will definitely return for more omelettes! read more

The way their evening maganger Victor treats customers. Unacceptable, Unproffesional, and an embarrassment to the establishment. He was simply called out on his rude attitude. read more

They made me a very sad looking salad and didn't even give me any dressing just a waste of $$$$ don't order to in the afternoon or night it's always a let down read more

Denny's - This is suppose to be a codd salad why does it look so bad? They didn't even give me any dressing for it - American Near Me - Ontario, California

kimberly was our waitress, she was not good at customer service, she forgot our food and when we asked for the total of the meal she forgot again read more

Appreciate the service Norma vary attentive highly recommended this location in ontario.

Seated fairly quickly , Our server John was nice and attentive got our drinks fast , food was good too

Rene our waiter provided excellent service. Always made sure to fill up our coffee on time and completed all our requests with kindness and proficiency. I brought my father out for breakfast and Rene really made our day a great one!!! Will definitely be coming back to Dennys hoping Rene can help serve us again !! read more

Never ordering from this location again. Total rip off. Don't bother getting the salmon and 2 sides only ended up getting 1 of my sides what a waste of money. Walked all the way back to my hotel just to open this disappointment. read more

Denny's - New Wild Alaska Salmon - American Near Me - Ontario, California

me and my friend really enjoyed our breakfast and norma was a great server! very kinda and patient

Shoutout to Kimberly for being the best server ever!! Great customer service skills, efficient, friendly, nice and goes above and beyond for the customers!! Also delicious food, can never go wrong with some Dennys read more

the hostess Kimberly is very kind, and loved how she provided great customer service! I love coming to this Denny's because of the great environment and how fast the service is read more

Still have not fixed their phone so it rings in the restaurant when you call to pick up at curbside. I can only assume they just don't care, or don't want you to order for curbside pick-up. read more

Hard not to give this place a great rating. Service is fast, food is well prepared and inexpensive. Every time I've been here, Rigoberto has been friendly, positive and working his butt off. I usually just have a breakfast plate, but I've had the tilapia dinner as well. Never busy, but worthy of your time. read more

I ordered the Benny aka eggs Benedict, and woke up with diarrhea. I knew it wasn't all that great, but I ate what I could. Eggs were burnt, Hollendaise sauce was just a gloppy mess tasted a bit off, and Muffins tasted like they were soaked in grease. Last time I eat at this one, or eat the Benny. Great service as busy as it was read more

Good food BUT the service isnt there. Its outdoor seating , there are about 8 tables and the waitresses cant keep up. Utensils were incomplete and they had to keep coming back because they kept forgetting. They brought out 3 plates then we waited around 10 minutes for the rest of the food to come out. The food was good but as expected it got cold due to waiting outside. I might come back to indoor dinning it should be good. read more

Denny's - HashBrown - American Near Me - Ontario, California

Delicious food , clean restaurant and restrooms, great staff and service! Love it. Definitely would enjoy coming back here never had an issue and love the continued great service. read more

Norma is an excellent server-- food was delish!! Love me some Denny's Pancakes-- fluffy and just the right amount of crispy around the edges. read more

kimberly was so nice and attentive made my experience at Dennys so amazing would definitely recommend coming I love it here

I don't want to sound mean I speak and understand Spanish but Angel did understand me so I asked to talk to someone else, and another man got on the phone and hung up. I called back I was not very happy I gave him my order and was charging me for the bead when the menu says served with bread he got angry and said I will give you the bead rudely read more

I always receive good service here when I travel to Ontario, CA. The food is great, the atmosphere is welcoming. My host/server is a joy.

I honestly think Dennys is a American classic that serves overall pretty good food and always open when needed.

Food just takes to long. Waited 30 minutes. People got served before me even though I sat down first. The people are really don't give good service. read more