Sonic Drive-In offers a variety of drink sizes to suit any thirst level, from small refreshments to Route 44 mega drinks. Whether you’re grabbing a quick soda or a huge slush to last all day, Sonic has the perfect size for you. If you’re wondering which Sonic drink size is best, here’s everything you need to know!
What Are the Different Sonic Drink Sizes?
Sonic offers four standard drink sizes, ranging from small to Route 44 (extra-large).
Sonic Drink Size Chart
| Size | Ounces (oz.) | Best For |
| Small | 12 oz. | A quick refreshment. |
| Medium | 16 oz. | A balanced choice. |
| Large | 20 oz. | Great for sipping longer. |
| Route 44 | 32 oz. | Best value for drink lovers. |
What is Route 44 at Sonic?
The Route 44 drink is Sonic’s biggest size, holding 32 oz. It’s the best value for the price and perfect for long road trips, all-day sipping, or sharing.
Why Choose Route 44?
- More drink for your money—especially during Happy Hour.
- Great for hot days when you need extra hydration.
- Perfect for slushes, sodas, teas, and lemonades.
How Much Do Sonic Drinks Cost by Size?
Prices vary by location, but here’s a general estimate.
| Size | Regular Price | Happy Hour Price (50% Off) |
| Small (12 oz.) | $1.99 | $0.99 |
| Medium (16 oz.) | $2.49 | $1.25 |
| Large (20 oz.) | $2.99 | $1.50 |
| Route 44 (32 oz.) | $3.49 | $1.75 |
Best Sonic Drink Sizes for Different Beverages
Some drinks taste better in larger sizes, while others work great in smaller servings.
| Drink Type | Best Size | Why? |
| Slushes | Route 44 | Keep frozen longer, with more flavor. |
| Sodas | Medium/Large | Perfect balance of size and carbonation. |
| Teas & Lemonades | Large | More refreshing, fewer refills needed. |
| Happy Hour Deals | Route 44 | Best value for 50% off drinks. |
How to Customize Your Sonic Drink Size
No matter which size you choose, you can still customize your drink with extra flavors and mix-ins.
Flavor Add-Ins
- Cherry
- Vanilla
- Lime
- Peach
- Blue Raspberry
- Coconut
Extra Mix-Ins
- Fresh fruit pieces
- Coconut cream
- Whipped cream
- Candy mix-ins (Nerds, Jolly Ranchers)
Are All Sonic Drink Sizes Included in Happy Hour?
Yes! During Sonic Happy Hour (2 PM – 4 PM), you can get 50% off all drink sizes, including Route 44. You can also get half-price drinks all day when ordering through the Sonic App.
How Do Sonic Drink Sizes Compare to Other Fast-Food Chains?
Sonic offers larger drink sizes than most fast-food restaurants.
| Fast-Food Chain | Largest Drink Size |
| Sonic Drive-In | Route 44 (32 oz.) |
| McDonald’s | Large (30 oz.) |
| Dairy Queen | Large (32 oz.) |
| Starbucks | Trenta (31 oz.) |
FAQs
What is the biggest Sonic drink size?
The Route 44 (32 oz.) is Sonic’s largest drink size.
What size is a Route 44 drink at Sonic?
The Route 44 is 32 oz., making it the biggest option available.
What is the best size for Happy Hour?
Route 44 gives you the best value when drinks are 50% off.
Can I get a Sonic slush in any size?
Yes! Slushies come in small, medium, large, and Route 44.
Do all Sonic locations offer the same drink sizes?
Most locations have the same sizes, but availability may vary.
