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.

Typical menu price: In-N-Out Burger $4.35 ยท Sonic Drive-In $4.29

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.
About these prices: menu prices are set by individual franchise owners and change without notice. The figures on this page are researched estimates for 2026 and are provided for reference only. Confirm the current price with the restaurant before ordering. Menu Price Book is not affiliated with this chain.

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.

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