$51 Find Cheap Flights from Denver to Idaho - Compare and Save

The cheapest ticket to Idaho from Denver found in the last 5 days was to Boise, at $168 round-trip. The most popular route is from Denver (DEN) to Boise (BOI), and the cheapest round-trip airline ticket found on this route in the last 5 days was $168.

The cheapest time of day to fly to Idaho is generally in the morning, when round-trip flights cost $234 on average. Morning departures are around 31% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $355.

No, with an average price for the route of $395, prices are generally cheapest when you fly direct.

The cheapest month for flights from Denver to Idaho is December, when tickets cost $25 (return) on average. On the other hand, the most expensive months are April and June, when the average cost of round-trip tickets is $114 and $113 respectively.

When flying from Denver to Idaho, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

To get a below average price on the flight from Denver to Idaho, you should book around 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

There are 4 airlines that fly nonstop from Denver to Idaho. They are: Frontier, Southwest, United Airlines and Allegiant Air. The cheapest price of all airlines flying this route was found with Frontier at $54 for a round-trip flight to Boise (BOI). On average, Allegiant Air offers the best prices for nonstop flights between Denver and Idaho.

Denver and Idaho are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (114 flights per week), Air Canada (47 flights per week), and Southwest (21 flights per week).

The duration of a flight to Idaho depends on your arrival airport. The shortest routes to Idaho from Denver are to Idaho Falls, which takes 1h 39m, Boise, which takes 1h 54m, and Hailey, which takes 2h 01m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Denver to Idaho departs at 7:40 am, landing in Boise at 9:35 am.

If you prefer to fly at night, the latest flight from Denver to Idaho jets off at 9:15 pm and lands in Boise at 11:10 pm.