For more than 60 years, SONIC, America’s Drive-In has built the ultimate dining experience with our drive-in restaurants and we proudly serve our guests in Broomfield,CO. We did it by sticking to what made drive-ins so popular in the first place: made-to-order American classics, signature menu items, and speedy service from friendly Carhops full of fun and personality. Cruise on over to us at 2440 West 128th Avenue for the ultimate SONIC experience!
Fast-food burger & fries joint with an old-school feel, including retro drive-in service. Based on 767 reviews, the restaurant has received a rating of 3.4 stars. Price $
✔️ Dine-in ✔️ Drive-through ✔️ No-contact delivery

Address:
2440 W 128th Ave, Broomfield, CO 80234
Phone: (720) 887-3716
Website:
Hours
| Saturday |
7 AM–10 PM |
| Sunday |
7 AM–10 PM |
| Monday
(Labor Day)
|
7 AM–10 PM
Hours might differ
|
| Tuesday |
7 AM–10 PM |
| Wednesday |
7 AM–10 PM |
| Thursday |
7 AM–10 PM |
| Friday |
7 AM–10 PM |
Menu
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Menu Photos
Photo Gallery
Reviews
JR Johnson
At drive in slot #22, I pushed the button to order and this happened: We hear the activity in the kitchen for awhile, then an unhappy voice asks what we want….like in the voice of Eyore in Winnie the Pooh. Rude and annoyed that they had to answer. Fast food work is hard. Being rude is not ok. I was going to order a ton, and took my business elsewhere.
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Ivett Rodriguez
Went through the drive thru…they were polite, reasonably quick and food was delicious!
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josie cooley
Just in town on a visit, Thank you we got great service and ketchup / mustard / napkins with our meal before asking for it. Colorado sonic is perfect !!
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Jaime Gilson-Hudson
They don’t even deserve 1 star. I just got my shake and it tasted spoiled and sour. Not sure if it is fresh ingredients. Dont recommend this place
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Mitzylina
Whoever has been making bomb a$$ slushees between the dates 3/31-4/4 you’re amazing ! I have been ordering cherry slushies with nerds and they have been hitting the spot with an awesome amount of nerds ! Thank you !
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Donna Eastman (Valazen)
Their food is better than the last time I was there. I had a chili cheese dog, tots, and cherry limeade. East quick and fairly price.
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Robin Lee
The past few months whenever I have gone to this Sonic they have actually been open and polite and on top of things for the most part, so I felt I needed to update their star rating and acknowledge their changes. There is one young man and I think he is actually management, who clearly doesn’t like to fill bags of ice because he gets short and snarky after hearing my order but the rest of the kids make up for his attitude with their positive behavior.
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Jarad Royal
I could hear the staff having fun inside without it compromising any work. Food was very fresh and the staff was very kind and had wonderful hospitality. I have never had a better drive through experience anywhere, thank you.
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Chris McMahon
Shakes were good but had to go threw the drive up because they didn’t have a carhop
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Jo Momma
Former Sonic roller-skating carhop here. It’s been almost 20 years but it’s still the same old Sonic, right? Nope. I was impressed with the digital touch screens. I don’t know if this is every Sonic now as it’s been a good decade since I’ve visited this franchise. It is nice to slide your card at the station as opposed to someone running off with it like the old days. But that was the only improvement I can note.
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