What is the cheapest month to fly from Denver to Idaho Falls?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Denver (DEN) to Idaho Falls (IDA), with fares starting from $140.

What is the lowest current fare from DEN to IDA?

The lowest currently-listed fare from Denver (DEN) to Idaho Falls (IDA) is $140 on 2026-06-02.

How long is the flight from Denver to Idaho Falls?

Direct flights from DEN to IDA cover approximately 736 km (457 miles), with an estimated flight time of 52m. Operating airlines: UA.

Cheap flights from Denver to Idaho Falls

Cheapest current fares: $140 in June 2026, 736 km direct flight in ~52m.

Last updated May 25, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Denver (DEN) to Idaho Falls (IDA). Refreshed daily.

Denver (DEN) → Idaho Falls (IDA)

June 2026 $140
May 2026 $146

Frequently asked questions

What is the cheapest month to fly from Denver to Idaho Falls?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Denver (DEN) to Idaho Falls (IDA), with fares starting from $140.
What is the lowest current fare from DEN to IDA?

The lowest currently-listed fare from Denver (DEN) to Idaho Falls (IDA) is $140 on 2026-06-02.
How long is the flight from Denver to Idaho Falls?

Direct flights from DEN to IDA cover approximately 736 km (457 miles), with an estimated flight time of 52m. Operating airlines: UA.

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