Cheapest one-way flights from Denver to Idaho Falls in May from $42
AirHint found the following cheapest one-way flights from Denver (DEN) to Idaho Falls (IDA) in May 2025 (see full year).
One-Way flights
| 22 May | Allegiant Air | direct | |
| 29 May | Allegiant Air | direct | |
| 02 May | United | direct |
Also check the deals for return flights from Denver to Idaho Falls in May.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
