United AirlinesDepart17:30
Fri, Nov 13IDA → DEN
1h 50m · Direct
$225one way, per person
View deal
- Cheapest fare
- $225
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 1h 45m
United Airlines · Fri, Nov 13
from $225
United Airlines
720 km
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Cheapest month to fly from Idaho Falls to Denver
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
United AirlinesUnited AirlinesDepart14:35
Sat, Nov 14IDA → DEN
1h 45m · Direct
$228one way, per person
View deal
United AirlinesDepart16:30
Tue, Nov 10IDA → DEN
1h 50m · Direct
$231one way, per person
View deal
Allegiant AirDepart09:02
Thu, Nov 12IDA → DEN
3h 54m · 1 stop
$276one way, per person
View deal
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About flights from Idaho Falls to Denver
Idaho Falls (IDA) and Denver (DEN) are about 720 km apart. Direct flights take around 1h 45m, and recent direct fares were with United Airlines. Over the next few months, one-way fares start from $225, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Idaho Falls to Denver?
The cheapest one-way fare we've seen recently is $225 with United Airlines, departing Friday, November 13, 2026.
What is the cheapest month to fly from Idaho Falls to Denver?
November 2026 currently has the lowest fares, from $225 one way.
Are there direct flights from Idaho Falls to Denver?
Yes. Recent direct fares were with United Airlines.
How long is the flight from Idaho Falls to Denver?
A direct flight takes about 1h 45m. Idaho Falls and Denver are around 720 km apart.
Which airlines fly from Idaho Falls to Denver?
Recent fares on this route were with United Airlines and Allegiant Air.
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