Sonic Drive-In • Drinks & Slushes
Diet Dr. Pepper
Nutrition Information
* Nutritional values are approximate and may vary by location and preparation. Source: Sonic Drive-In official website.
Diet Dr. Pepper cold over ice. Same great taste, zero calories.
Everything You Need to Know About Sonic Drive-In Diet Dr. Pepper
Diet Dr. Pepper at Sonic: zero calories with the same distinctive 23-flavor Dr. Pepper taste. Available in all sizes and half price during Happy Hour.
How to order Diet Dr. Pepper at Sonic Drive-In
The Diet Dr. Pepper is available for dine-in and takeout at Sonic Drive-In locations across the United States, and through the chain's own app or delivery partners in most markets. Before you order, it is worth checking the current Sonic Drive-In deals in case this item is part of a running promotion.
Sonic Drive-In Diet Dr. Pepper price in 2026
The Diet Dr. Pepper is listed at $2.49 on the Sonic Drive-In menu we track. Prices can differ between restaurants, and airport or stadium locations usually sit higher, so the menu board and the official app are the final word for the restaurant you are visiting. See the full Sonic Drive-In menu for the rest of the prices we hold.
💡 Pro Tips for Ordering Diet Dr. Pepper
- 1Zero calories version of Dr. Pepper
Frequently Asked Questions About Sonic Drive-In Diet Dr. Pepper
Q:Does Sonic carry Diet Dr. Pepper?
Yes, in all sizes.
More Sonic Drive-In Menu Items
Full Menu →
$7.99Burgers
SuperSONIC Double Cheeseburger
Two beef patties with double American cheese, mustard, mayo, ketchup, pickles, tomato, lettuce, and onion.
$5.29Burgers
Classic Cheeseburger
Single beef patty with American cheese, mustard, ketchup, pickles, and onion.
$8.79Burgers
Bacon Double Cheeseburger
Double beef with crispy bacon, two slices of American cheese, and all the classic toppings.
$2.99Burgers
Jr. Burger
Small single beef patty with mustard, ketchup, pickles, and onion. Best value on the menu.
More from the Sonic Drive-In menu
Full menu →
$8.49Burgers
Double SONIC Smasher
Two smashed beef patties with crispy edges, double American cheese, pickles, onion, mustard, and ketchup.
$10.49Burgers
Triple SONIC Smasher
Three smashed beef patties stacked with triple cheese, pickles, onion, mustard, and ketchup.
$9.49Burgers
Big Dill Double SONIC Smasher
Double smashed beef patties loaded with dill pickles, double cheese, and special sauce.
$11.49Burgers
Big Dill Triple SONIC Smasher
Three smashed patties with triple cheese, loaded dill pickles, and tangy special sauce.
$9.99Burgers
Cheesy Bacon SONIC Stack
Smashed beef patty stacked with bacon, extra cheese, and a rich cheese sauce on top.
$7.49Burgers
SONIC Stack
Smashed beef patty with American cheese, lettuce, tomato, onion, pickles, and mayo.
About Sonic Drive-In - Fast Food Restaurant
America's Drive-In since 1953, famous for tater tots, cherry limeades, slushes, and made-to-order burgers with Happy Hour half-price drinks every day 2 to 4 PM.
The Diet Dr. Pepper is just one of many excellent choices available on the Sonic Drive-In menu. Whether you are visiting for the first time or you are a regular, USA Food Journal has you covered with up-to-date pricing, nutrition information, and insider tips for every item. Explore the full Sonic Drive-In menu to discover everything available, from appetizers to desserts.
Looking to save on your next visit? We list the rewards and offers each chain publishes, with a link to the source, on our restaurant deals page. You can also compare menus and prices across all major US chains on our all restaurants page.