No New Notifications

2707 Boston Avenue, San Diego

Up to 40% Off on Burger Restaurant at Burger Flex

Select Option
Extra 20% off, up to $50
Promo Code SAVE. Ends 1/17.
Over 30 views today, so act now!


Customers munch on beloved comfort-food staples such as burgers, sweet-potato fries, and chicken wings

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
Marlenetop reviewer
28 ratings14 reviews
5 days ago
Excellent burger, cook the way we want it. But was better if they grilled both sides of beef patties to get the grilled smokey flavors. Excellent service.
Jacquelinetop reviewer
10 ratings9 reviews
6 days ago
Ordered the cali flex burger and it was very hard to eat because it was really sloppy with the thousand island sauce and guacamole. It was also cold right when we got it and didn’t seem fresh to order. Pricey for what it is also. I got curly fries instead of the sweet potato fries I ordered and I don’t usually like curly fries so I was disappointed. Very dissatisfied all together.
Raqueltop reviewer helpful reviewer
16 ratings13 reviews
January 8, 2022
Such great service. Loved the idea of Flex. Food was fresh and great.
Josephtop reviewer
39 ratings29 reviews
January 6, 2022
Just read the Groupon on how to redeem it before you go to the establishment. I didn't but they helped me and honored it.
2 ratings1 reviews
December 22, 2021
I had to take my order back 4 times to get it right, I would not recommend what so ever! When I finally did get all my order correct then the rest of our food was cold.
View Comment +
Richardtop reviewer
6 ratings5 reviews
December 17, 2021
Best way to to order via phone if using Groupon. Food was bussing like a dump truck lol check this place out!
View Comment +

About This Deal

  • Type of food: casual American
  • Valid for takeout and dine-in
  • Valid for the full menu any day the establishment is open
  • View the menu and prices
  • Not valid with 3rd party ordering
  • For takeout, call (619) 212-5006 to place your order

Burger Flex

Chefs at Burger Flex surely know their way around comfort food. Here, customers will find hearty plates of fries in numerous flavors, including cheeseburger and waffle. The fries pair well with the restaurant’s signature Flex Burgers as well as meatless options from Beyond Burger.

Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Valid for dine-in and takeout. Not valid with 3rd party ordering. Limit 3 per person. May be repurchased every 90 days. Must use promotional value in 1 visit. Not valid with other offers or promotions. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Burger Flex