In-N-Out Burger vs Sonic Drive-In: Menu Prices Compared (2026)
The short answer
In-N-Out Burger is the cheaper of the two. Of the 7 directly comparable items we could match across both menus, In-N-Out Burger is cheaper on 6 of them, by an average of $1.08 per item.
Deals Worth Knowing at Both
In-N-Out Burger
- Animal Style, Protein Style, extra spread, chopped chilies and well-done fries are all free modifications โ the best no-cost upgrades in fast food.
- A Double-Double at $6.35 costs less than a single premium burger at most competitors and contains two patties.
- Building a 3x3 at $8.35 is cheaper than a Double-Double plus an extra patty ordered separately.
Sonic Drive-In
- Happy Hour from 2:00 to 4:00 PM every day takes 50 percent off all drinks and slushes โ the single biggest recurring discount in fast food.
- The Sonic app frequently offers half-price burgers on Tuesdays and free items with a purchase.
- Upgrading to a Route 44 (44 oz) for $0.60 more is the cheapest per-ounce drink on the menu, especially during Happy Hour.
In-N-Out Burger vs Sonic Drive-In โ FAQ
Is In-N-Out Burger cheaper than Sonic Drive-In in 2026?
In-N-Out Burger is cheaper on most matched items โ 6 of 7. Across the whole menu Sonic Drive-In is the lower-priced of the two, at $4.29 for a typical item against $4.35 at In-N-Out Burger.
What is the price difference between In-N-Out Burger and Sonic Drive-In?
On matched items the average difference is $1.08, or about 5% overall. In-N-Out Burger averages $4.90 across 23 priced items; Sonic Drive-In averages $4.66 across 42.
Which has the cheaper entry price, In-N-Out Burger or Sonic Drive-In?
In-N-Out Burger starts at $1.30 (Milk) and Sonic Drive-In at $1.99 ($1.99 Snack Menu items).
Are these prices the same at every location?
No. Both chains let franchise owners set prices, so figures move by a dollar or more between markets and run highest at airport, stadium and highway locations. Treat these as the typical U.S. price, not a quote.