Denny's prices in Idaho
8 Denny's restaurants in Idaho, prices checked 2026-10-05.
Key findings
- A Denny's Grand Slamwich Combo typically costs $15.99 in Idaho ($15.39 to $17.79 across 8 restaurants). Denny's here is 13% below its typical price in the US.
Every Denny's in Idaho, by town
Each restaurant links to its full menu with prices. A town with its own page links to it, where every brand there is compared.
| City | Restaurants | Typical Grand Slamwich Combo | Restaurant |
|---|---|---|---|
| Burley | 1 | $15.49 | 611 N. Overland Ave. |
| Caldwell | 1 | $17.79 | 3512 Franklin Road |
| Coeur D' Alene | 1 | $15.99 | 2300 N 4th ST |
| Lewiston | 1 | $15.99 | 2122 Nez Perce Grade |
| Moscow | 1 | $16.19 | 1838 W Pullman Road |
| Post Falls | 1 | $15.99 | 1670 Schneidmiller Ave |
| Rexburg | 1 | $15.49 | 585 N 2nd St E |
| Twin Falls | 1 | $15.39 | 291 Pole Line Road |
More prices
- Denny's prices across the US
- Every brand in Idaho
- McDonald's in Idaho
- Burger King in Idaho
- Wendy's in Idaho
- Taco Bell in Idaho
- KFC in Idaho
- Popeyes in Idaho
- Chick-fil-A in Idaho
- Chipotle in Idaho
- Jersey Mike's in Idaho
- Firehouse Subs in Idaho
- Five Guys in Idaho
- Sonic in Idaho
- Arby's in Idaho
- Wingstop in Idaho
- Jack in the Box in Idaho
- Carl's Jr. in Idaho
- Del Taco in Idaho
- Freddy's in Idaho
- Tropical Smoothie Cafe in Idaho
- Papa Murphy's in Idaho
- Dairy Queen in Idaho
- Panda Express in Idaho
- Qdoba in Idaho
- Jamba in Idaho
- Noodles & Company in Idaho
- Blaze Pizza in Idaho
- Cold Stone Creamery in Idaho
- Costa Vida in Idaho
- IHOP in Idaho
- MOD Pizza in Idaho
- Raising Cane's in Idaho
- Red Robin in Idaho
- TacoTime in Idaho
Questions people ask
- How much is a Denny's Grand Slamwich Combo in Idaho?
- As of 2026-10-05, a Grand Slamwich Combo costs $15.39 to $17.79 at 8 Denny's restaurants in Idaho, typically $15.99.
- Where is the cheapest Denny's in Idaho?
- The cheapest Denny's in Idaho is at 291 POLE LINE ROAD, Twin Falls, comparing the same basket at 7 restaurants (Drive Thru Index, 2026-10-05).
How these prices are measured
Every day we check the menu at every restaurant of each chain, through the same ordering app its customers use, and record each item's pickup price. Restaurants are compared on a basket of items every full-menu restaurant of that brand sells. An index of 100 is the brand's typical (median) restaurant in the country, so 95 means 5% cheaper and 110 means 10% pricier. Brands are only ever compared with themselves, never with each other.
Citing this data: Source: Drive Thru Index (https://drivethruindex.com/brands/dennys/idaho), prices checked 2026-10-05. You are welcome to quote any figure on this page.