Del Taco vs Sonic Drive-In: Menu Prices Compared (2026)

The short answer

Del Taco is the cheaper of the two. Of the 4 directly comparable items we could match across both menus, Del Taco is cheaper on 4 of them, by an average of $2.63 per item.

Typical menu price: Del Taco $3.49 ยท Sonic Drive-In $4.29

Deals Worth Knowing at Both

Del Taco

  • The 20 Under $2 menu is the deepest value lineup in Mexican fast food โ€” a Value Taco at $1.29 and a cheeseburger at $1.99 from the same window.
  • Two Value Tacos plus Value Fries comes to about $4.37, well under any combo on the board.
  • Del Yeah! Rewards in the app gives a free item on signup, points on every order and a birthday reward.

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.

Del Taco vs Sonic Drive-In โ€” FAQ

Is Del Taco cheaper than Sonic Drive-In in 2026?

Del Taco is cheaper on most matched items โ€” 4 of 4. Across the whole menu Del Taco is the lower-priced of the two, at $3.49 for a typical item against $4.29 at Sonic Drive-In.

What is the price difference between Del Taco and Sonic Drive-In?

On matched items the average difference is $2.63, or about 9% overall. Del Taco averages $4.25 across 44 priced items; Sonic Drive-In averages $4.66 across 42.

Which has the cheaper entry price, Del Taco or Sonic Drive-In?

Del Taco starts at $1.29 (Value Taco) 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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