Sonic Drive-In

314 Us Highway 31 South, Flemington
(908) 788-0010

Recent Reviews Order Online

Customers' Favorites

Supersonic Double Cheeseburger
French Toast Sticks
Chili Cheese Tots
Sonic Refreshers
Popcorn Chicken
Grilled Cheese
Beef Hot Dog
Dr Pepper
Chili Dog
Sandwich

Menu

Most Popular
Quarter Pound Double Cheeseburger
A classic American icon made with Sonic style. Two 100% pure beef jr. hamburgers layered with two thick slices of melty American cheese, with ketchup, mustard and pickles.
Hand-Mixed Classic Shakes
Real Ice Cream hand-mixed with your favorite flavors into a thick, cold, creamy shake and finished with whipped topping and a cherry. The perfect treat or addition to your meal.
Mozzarella Sticks
Crispy on the outside, gooey on the inside. Melty, real mozzarella cheese, breaded and fried to perfection. Dunking in a side dipping cup of creamy marinara sauce is a must. ***Please choose your dipping sauce preference below.
SONIC Blasts®
Candy and cookie pieces and Real Ice Cream the way they should be. All mixed up.
Chicken Slinger
Get the flavor you crave with this chicken sandwich! Made with juicy 100% all-white meat chicken, crink-cut pickles and creamy mayonnaise all served on a warm brioche bun.
Honey BBQ Sauced Jumbo Popcorn Chicken®
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a tangy Honey BBQ sauce. This cravable favorite makes for a great snack or paired as a meal.
Jumbo Popcorn Chicken®
Enjoy a crispy snack, made with juicy all white meat. Spice it up with Signature Sauce.
Chili Cheese Tots
Crispy, golden brown tots smothered with warm, chili and cheese. Get 'em with your combo or on their own!
SuperSONIC® Bacon Double Cheeseburger
Bacon makes everything better - especially when it's as good as our SuperSONIC® Double Cheeseburger. We start with two quarter-pound, 100% pure beef hamburgers, two melty slices of American cheese, lettuce, fresh sliced tomatoes, creamy mayo, and top it all off with crispy bacon.
Footlong Quarter Pound Coney
Want something filling that's also a great deal? Try SONIC's Footlong Chili Cheese Coney. A grilled hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun.

Picked for you
Quarter Pound Double Cheeseburger
A classic American icon made with Sonic style. Two 100% pure beef jr. hamburgers layered with two thick slices of melty American cheese, with ketchup, mustard and pickles.
Chicken Slinger
Get the flavor you crave with this chicken sandwich! Made with juicy 100% all-white meat chicken, crink-cut pickles and creamy mayonnaise all served on a warm brioche bun.
SONIC® Cheeseburger
What you see is what you get. Melty American cheese, crinkle-cut pickles, chopped onions, fresh shredded lettuce & ripe tomatoes on a perfectly seasoned, 100% pure beef patty. Straightforward and tasty, just the way it should be.
All-American Dog
Take a bite out of Americana with SONIC's Premium Beef All-American Dog. It's a beef hot dog made with 100% pure beef that's grilled to perfection and topped with ketchup, yellow mustard, relish and chopped onions and served in a soft, warm bakery bun.
Footlong Quarter Pound Coney
Want something filling that's also a great deal? Try SONIC's Footlong Chili Cheese Coney. A grilled hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun.

Featured
Tropical Colada Slush
A tropical blend of coconut, pineapple and banana flavors all swirled into an icy slush.
Jr Cheeseburger
Red Bull Slush
Sonic Slush hand-mixed with Red Bull® Energy Drink to vitalize body and mind. Always half price when you order in the app!
JuneBerry Red Bull Slush
Red Bull Energy Drink
Vitalizes body and mind®
JuneBerry Red Bull Energy Drink
The taste of Juneberry with the wings of Red Bull®
Polynesian Punch Slush
A Hawaiian-inspired icy fruit punch
Buffalo Chicken Dip Bites

Combos
Footlong Quarter Pound Coney Combo
Want something filling that's also a great deal? Try SONIC's Footlong Chili Cheese Coney. A grilled hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun. Even better with a Side and Drink included!
Honey BBQ Sauced Jumbo Popcorn Chicken® Combo
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a tangy Honey BBQ sauce. This cravable favorite makes for a great snack. Even better with a Side and Drink included!
Cinnabon® Cinnasnacks® with Cream Cheese Frosting & Drink
The sweeter side of breakfast. Cinnabon® Cinnasnacks®; are warm, buttery pastries filled with gooey cinnamon roll filling and served with One real cream cheese frosting. Start your day with Cinnasnacks®; or enjoy, as a snack, any time of the day. Drink Included.
SONIC® Cheeseburger Combo
What you see is what you get. A juicy, perfectly seasoned, quarter pound, 100% pure beef patty layered with melty American cheese, crisp, crinkle cut pickles, tangy ketchup, diced onions, creamy mayo, crisp lettuce, and hand sliced tomatoes on a golden, toasted bun. Straightforward and tasty, just the way it should be. Even better with a Side and Drink included!
SuperSONIC® Double Cheeseburger Combo
Double the SONIC® goodness with the SuperSONIC® Cheeseburger. Two juicy, perfectly seasoned, quarter pound, 100% pure beef patties that are layered with two slices of melty American cheese, crisp, crinkle cut pickles, tangy ketchup, diced onions, creamy mayo, crisp lettuce, and hand sliced tomatoes on a golden, toasted bun. Seeing double has never been tastier. Even better with a Side and Drink included!
SuperSONIC® Bacon Double Cheeseburger Combo
Bacon makes everything better - especially when it's as good as our SuperSONIC® Double Cheeseburger. We start with two quarter-pound, 100% pure beef hamburgers, two melty slices of American cheese, lettuce, fresh sliced tomatoes, with mayo and top it all off with crispy bacon. Even better with a Side and Drink included!
Chili Cheese Coney Combo
Want something filling that's also a great deal? Try SONIC's Premium Beef Chili Cheese Coney. A grilled beef hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun. Even better with a Side and Drink included!
All-American Dog Combo
Take a bite out of Americana with SONIC's Premium Beef All-American Dog. It's a beef hot dog made with 100% pure beef that's grilled to perfection and topped with ketchup, yellow mustard, relish and chopped onions and served in a soft, warm bakery bun. Even better with a Side and Drink included!
Jumbo Popcorn Chicken® Combo
Enjoy a crispy snack, or put together the perfect combo meal with our Jumbo Popcorn Chicken®, made with juicy all white meat. Even better with a Side and Drink included!
Buffalo Sauced Jumbo Popcorn Chicken® Combo
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a spicy, Buffalo sauce. This cravable favorite makes for a great snack. Even better with a Side and Drink included!
Sausage Breakfast Burrito Combo
Kick start your morning with the same SONIC goodness of a simple breakfast burrito. Scrambled eggs, melty cheddar cheese and savory sausage, all wrapped up in a warm flour tortilla. Even better with a Side and Drink included!
Bacon Breakfast Burrito Combo
Kick start your morning with the same SONIC goodness of a simple breakfast burrito. Scrambled eggs, melty cheddar cheese and crispy bacon, all wrapped up in a warm flour tortilla. Even better with a Side and Drink included!
SuperSONIC® Breakfast Burrito Combo
Let the big flavor of the SuperSONIC® Breakfast Burrito get you out of bed. A medley of savory sausage, fluffy scrambled eggs, melty cheddar cheese, golden tots, diced onions, ripe tomatoes and spicy jalapeños all wrapped up in a warm flour tortilla. It'll sing to your taste buds. Which, if you ask us, is a pretty cool way to start your morning. Even better with a Side and Drink included!
Ultimate Meat & Cheese Breakfast Burrito™ Combo
Breakfast doesn't get better than the all-new Ultimate Meat & Cheese Breakfast Burrito™ with crispy bacon, savory sausage, golden tots, fluffy scrambled eggs and melty cheddar cheese, all wrapped in a warm flour tortilla. Even better with a Side and Drink included!
Sausage Breakfast TOASTER® Combo
Behold – melty cheese, your choice of savory sausage, crispy bacon or delicious ham, all stacked up on thick Texas Toast and served with fluffy eggs. Sounds like breakfast heaven if you ask us. Even better with a Side and Drink included!
Bacon Breakfast TOASTER® Combo
Behold – melty cheese, crispy bacon all stacked up on thick Texas Toast and served with fluffy eggs. Sounds like breakfast heaven if you ask us. Even better with a Side and Drink included!

Ultimate Drink Stop
Famous Slushes
So good, they're famous. That's probably all you need to know. Oh, and they're only at SONIC.
Real Fruit Slushes
SONIC's craveable, icy slush made more delicious with real fruit!
Tropical Colada Slush
A tropical blend of coconut, pineapple and banana flavors all swirled into an icy slush.
Water
French Vanilla Cold Brew Iced Coffee
SONIC's smooth iced coffee poured over SONIC® ice, vanilla flavor and sweet cream.
Limeades and Lemonades
Tangy and sweet limeade with your choice of some favorite SONIC® flavors – all made with fresh fruit and all signature to Sonic.
Soft Drinks
More options of cold, bubbly refreshments with your choice of flavor add-ins, all served over our famous SONIC ice.
Iced Tea
Your destination for everything iced tea!
Green Mountain Coffee Roasters® Coffee
Green Mountain Coffee Roasters® Coffee is now available at SONIC, made exclusively from 100 percent Arabica beans and brewed to perfection.
Minute Maid® 100%25 Apple Juice Box
Get the best of both worlds with MINUTE MAID® 100% Apple Juice. It's good and good for you.
Milk Jug (1%25) - White
It's good. Good for you. And tastes like milk. What's not to love? Ultra-Pasteurized and the perfect cold and creamy addition to any Combo or Wacky Pack® meal. 8 FL OZ (236 mL)
Cup of SONIC® Ice
World Famous SONIC® Crushed Ice
Red Bull Energy Drink
Vitalizes body and mind®
Red Bull Slush
Sonic Slush hand-mixed with Red Bull® Energy Drink to vitalize body and mind. Always half price when you order in the app!
JuneBerry Red Bull Slush
JuneBerry Red Bull Energy Drink
The taste of Juneberry with the wings of Red Bull®
Polynesian Punch Slush
A Hawaiian-inspired icy fruit punch

Burgers
Quarter Pound Double Cheeseburger
A classic American icon made with Sonic style. Two 100% pure beef jr. hamburgers layered with two thick slices of melty American cheese, with ketchup, mustard and pickles.
SONIC® Cheeseburger
What you see is what you get. Melty American cheese, crinkle-cut pickles, chopped onions, fresh shredded lettuce & ripe tomatoes on a perfectly seasoned, 100% pure beef patty. Straightforward and tasty, just the way it should be.
SuperSONIC® Bacon Double Cheeseburger
Bacon makes everything better - especially when it's as good as our SuperSONIC® Double Cheeseburger. We start with two quarter-pound, 100% pure beef hamburgers, two melty slices of American cheese, lettuce, fresh sliced tomatoes, creamy mayo, and top it all off with crispy bacon.
SuperSONIC® Double Cheeseburger
Double the SONIC® goodness with the SuperSONIC® Cheeseburger. Two juicy, perfectly seasoned, quarter pound, 100% pure beef patties that are layered with two slices of melty American cheese, crisp, crinkle cut pickles, tangy ketchup, diced onions, creamy mayo, crisp lettuce, and hand sliced tomatoes on a golden, toasted bun. Seeing double has never been tastier.
Jr Cheeseburger
Plain SONIC Cheeseburger
The Plain SONIC Cheeseburger is a juicy 100% pure beef patty and melty American cheese.

Chicken
Chicken Slinger
Get the flavor you crave with this chicken sandwich! Made with juicy 100% all-white meat chicken, crink-cut pickles and creamy mayonnaise all served on a warm brioche bun.
Classic Crispy Chicken Sandwich
Lightly seasoned and breaded 100% all white meat chicken breast topped with fresh lettuce, ripe tomatoes and your choice of mustard, mayo or ketchup, served on a warm Brioche bun.
Jumbo Popcorn Chicken®
Enjoy a crispy snack, made with juicy all white meat. Spice it up with Signature Sauce.
Buffalo Sauced Jumbo Popcorn Chicken®
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a spicy, Buffalo sauce. This cravable favorite makes for a great snack or paired as a meal.
Honey BBQ Sauced Jumbo Popcorn Chicken®
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a tangy Honey BBQ sauce. This cravable favorite makes for a great snack or paired as a meal.
Crispy Tenders Dinner
100% all-white meat chicken tenders are crispy and packed with flavor. Enjoy them by themself, or pair them with SONIC's great dipping sauce options.
Crispy Chicken Tenders
Crispy-on-the-outside, juicy-on-the-inside, these all-white meat chicken tenders are packed with flavor. So, let's face it - sometimes it's what's on the outside that counts most! Made with extra crispiness for extra flavor, dip these in our NEW Signature Sauce or any of our other great dipping sauce options! Available in 3 or 5 pieces. ***Please choose your dipping sauce preference below.

Hot Dogs
Footlong Quarter Pound Coney
Want something filling that's also a great deal? Try SONIC's Footlong Chili Cheese Coney. A grilled hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun.
Chili Cheese Coney
Want something filling that's also a great deal? Try SONIC's Premium Beef Chili Cheese Coney. A grilled beef hot dog topped with warm chili and melty cheddar cheese served in a soft, warm bakery bun.
All-American Dog
Take a bite out of Americana with SONIC's Premium Beef All-American Dog. It's a beef hot dog made with 100% pure beef that's grilled to perfection and topped with ketchup, yellow mustard, relish and chopped onions and served in a soft, warm bakery bun.
Corn Dog
Simple food at its finest. A delicious hot dog surrounded in sweet corn batter and fried to a crispy golden brown. It's like hot dog utopia on a stick.

Kids' Meals
Wacky Pack® Jr Burger
A juicy, 100% pure beef patty, and crinkle-cut pickles with your choice of mustard, mayo or ketchup. Includes Kid Sized Drink & Side Item, plus a Fun Toy.
Wacky Pack® Chicken Strips
A kid-friendly finger food. Two crispy-on-the-outside, juicy-on-the-inside all white meat chicken strips. Dip them in sauce or eat them plain. They're good either way. Includes Kid Sized Drink & Side Item, plus a Fun Toy.
Wacky Pack® 100%25 Beef Hot Dog
Take a bite out of Americana with SONIC's Premium Beef Hot Dog. It's made with 100% pure beef that's grilled to perfection and served in a soft, warm bakery bun. Includes Kid Sized Drink & Side Item, plus a Fun Toy.
Wacky Pack® Corn Dog
Simple food at its finest. A delicious hot dog surrounded in sweet corn batter and fried to a crispy golden brown. Try it with some mustard or ketchup if you want. It's like a hot dog utopia on a stick. Includes Kid Sized Drink & Side Item, plus a Fun Toy.
Wacky Pack® Grill Cheese Sandwich
The delicious cheesy concoction all kids know and love. Two thick slices of Texas Toast with classic melted American cheese. Includes Kid Sized Drink & Side Item, plus a Fun Toy.

All Day Breakfast
Bacon Breakfast TOASTER®
Behold – melty cheese, crispy bacon all stacked up on thick Texas Toast and served with fluffy eggs. Sounds like breakfast heaven if you ask us.
French Vanilla Cold Brew Iced Coffee
SONIC's smooth iced coffee poured over SONIC® ice, vanilla flavor and sweet cream.
Ultimate Meat & Cheese Breakfast Burrito™
Breakfast doesn't get better than the all-new Ultimate Meat & Cheese Breakfast Burrito™ with crispy bacon, savory sausage, golden tots, fluffy scrambled eggs and melty cheddar cheese, all wrapped in a warm flour tortilla.
Jr. Sausage, Egg and Cheese Breakfast Burrito
Sausage, eggs and cheese, oh my! The Jr. Breakfast Burrito is packed with savory sausage, fluffy eggs and melty cheese, and all wrapped up in a warm flour tortilla. Value tastes good, doesn't it?
SuperSONIC® Breakfast Burrito
Let the big flavor of the SuperSONIC® Breakfast Burrito get you out of bed. A medley of savory sausage, fluffy scrambled eggs, melty cheddar cheese, golden tots, diced onions, ripe tomatoes and spicy jalapeños all wrapped up in a warm flour tortilla. It'll sing to your taste buds. Which, if you ask us, is a pretty cool way to start your morning.
Sausage Breakfast TOASTER®
Behold – melty cheese, your choice of savory sausage, crispy bacon or delicious ham, all stacked up on thick Texas Toast and served with fluffy eggs. Sounds like breakfast heaven if you ask us.
Bacon Breakfast Burrito
Kick start your morning with the same SONIC goodness of a simple breakfast burrito. Scrambled eggs, melty cheddar cheese and crispy bacon, all wrapped up in a warm flour tortilla.
Sausage Breakfast Burrito
Kick start your morning with the same SONIC goodness of a simple breakfast burrito. Scrambled eggs, melty cheddar cheese and savory sausage, all wrapped up in a warm flour tortilla.
Jr. Bacon, Egg and Cheese Breakfast Burrito
Bacon, eggs and cheese, oh my! The Jr. Breakfast Burrito is packed with savory sausage, fluffy eggs and melty cheese, and all wrapped up in a warm flour tortilla. Value tastes good, doesn't it?
Cinnabon® Cinnasnacks® with Cream Cheese Frosting
The sweeter side of breakfast. Cinnabon® Cinnasnacks®; are warm, buttery pastries filled with gooey cinnamon roll filling and served with One real cream cheese frosting. Start your day with Cinnasnacks®; or enjoy, as a snack, any time of the day.
Green Mountain Coffee Roasters® Coffee
Green Mountain Coffee Roasters® Coffee is now available at SONIC, made exclusively from 100 percent Arabica beans and brewed to perfection.

Snacks & Sides
Buffalo Chicken Dip Bites
Fries
Made from Whole Russet Potatoes, the new Natural-Cut, ‘skin-on' fry brings more crispy crunch to deliver an all new taste sensation.
Onion Rings
There's really nothing better than SONIC's crispy, handmade onion rings
Corn Dog
Simple food at its finest. A delicious hot dog surrounded in sweet corn batter and fried to a crispy golden brown. It's like hot dog utopia on a stick.
Tots
Pop some of these crispy little potato pieces in your mouth and you'll never think of a spud the same way again.
Chili Cheese Tots
Crispy, golden brown tots smothered with warm, chili and cheese. Get 'em with your combo or on their own!
Cheese Tots
Crispy, golden brown tots smothered with warm American cheese. Get 'em with your combo or on their own!
Chili Cheese Fries
Crispy, golden brown sticks of potato goodness. Get 'em with your combo, or on their own smothered with warm, chili and cheese. But who are we to tell you how to eat?
Cheese Fries
Crispy, golden brown sticks of potato goodness with cheese.
Ched ‘R' Peppers®
It will be love at first bite. Spicy jalapenos filled with melty Cheddar cheese, breaded and fried to perfection. Cool it off with a side dipping cup of creamy Ranch dressing.
Soft Pretzel Twist
A soft pretzel twisted into a tasty treat and served with One Signature Cheese Sauce!
Jumbo Popcorn Chicken®
Enjoy a crispy snack, made with juicy all white meat. Spice it up with Signature Sauce.
Buffalo Sauced Jumbo Popcorn Chicken®
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a spicy, Buffalo sauce. This cravable favorite makes for a great snack or paired as a meal.
Honey BBQ Sauced Jumbo Popcorn Chicken®
Our Jumbo Popcorn Chicken made with breaded 100% all-white meat chicken and coated in a tangy Honey BBQ sauce. This cravable favorite makes for a great snack or paired as a meal.
Mozzarella Sticks
Crispy on the outside, gooey on the inside. Melty, real mozzarella cheese, breaded and fried to perfection. Dunking in a side dipping cup of creamy marinara sauce is a must. ***Please choose your dipping sauce preference below.

Frozen Zone
Hand-Mixed Classic Shakes
Real Ice Cream hand-mixed with your favorite flavors into a thick, cold, creamy shake and finished with whipped topping and a cherry. The perfect treat or addition to your meal.
SONIC Blasts®
Candy and cookie pieces and Real Ice Cream the way they should be. All mixed up.
Hand-Mixed Master Shakes
SONIC's classic shake made even more indulgent with premium flavors and ingredients, then finished with whipped topping and a cherry.
Hot Fudge Sundae
Our Hot Fudge Sundaes start with creamy, real vanilla ice cream swirled together with hot fudge, and finished with whipped topping and a cherry.
Ice Cream Dish
Creamy, real vanilla ice cream served in a dish.
Strawberry Sundae
Strawberry Sundaes start with creamy, real vanilla ice cream swirled together with strawberry and finished with whipped topping and a cherry.
Caramel Sundae
Caramel Sundaes start with creamy, real vanilla ice cream swirled together with caramel and finished with whipped topping and a cherry.
Vanilla Cone
Simple and sweet. Creamy real vanilla ice cream served in a cake cone.

Everyday Deals
Jr. Bacon, Egg and Cheese Breakfast Burrito
Bacon, eggs and cheese, oh my! The Jr. Breakfast Burrito is packed with savory sausage, fluffy eggs and melty cheese, and all wrapped up in a warm flour tortilla. Value tastes good, doesn't it?
Grilled Cheese
The delicious cheesy concoction all kids (and big kids) know and love. Two thick slices of Texas Toast with classic melted American cheese.
Quarter Pound Double Cheeseburger
A classic American icon made with Sonic style. Two 100% pure beef jr. hamburgers layered with two thick slices of melty American cheese, with ketchup, mustard and pickles.
Jr. Sausage, Egg and Cheese Breakfast Burrito
Sausage, eggs and cheese, oh my! The Jr. Breakfast Burrito is packed with savory sausage, fluffy eggs and melty cheese, and all wrapped up in a warm flour tortilla. Value tastes good, doesn't it?

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Recent Reviews

Went to Sonic after visiting my new grandson in the hospital across the street. We ordered a bunch of different items at a drive in parking spot. The food came out quickly and hot. The tater tots were so crispy, the best!! My burger was so good and my husband loved his corn dog and Chicago hotdog. We didn’t try any shakes but they looked great. We will definitely be back if we’re In the area again!!
September 2026
Never did i go to sonic but happened to be passing on 31. Ok. Go to the 1st berth available well the screen was broken. Backed up went to the next one and finally got that on to work. Ordered 2 number 9s foot long chili dog with fries and a drink. Chili was tasteless but doable the hot dog was fresh and hot. Not going on my must try again list. The tater tots were yummo
July 2026
This location was very clean on the outside and the food that I ordered came out hot and fresh . Sonic is one of my favorite places for a burger sooo good ! I got the triple smash burger yummmmm! And the the onion rings are fire ! The sweetness is addicting! If you haven't tried them then ur missing out ! Definitely going back !
April 2026

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Sonic Drive-In

314 Us Highway 31 South, Flemington, NJ 08822
(908) 788-0010