United AirlinesDepart07:00
Thu, Nov 12IDA → CPR
3h 10m · 1 stop
$359one way, per person
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- Cheapest fare
- $359
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 2h 58m
United Airlines · Thu, Nov 12
from $359
Usually 1+ stop
460 km
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Cheapest month to fly from Idaho Falls to Casper
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.
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About flights from Idaho Falls to Casper
Idaho Falls (IDA) and Casper (CPR) are about 460 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 2h 58m. Over the next few months, one-way fares start from $359, 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 Casper?
The cheapest one-way fare we've seen recently is $359 with United Airlines, departing Thursday, November 12, 2026.
What is the cheapest month to fly from Idaho Falls to Casper?
November 2026 currently has the lowest fares, from $359 one way.
Are there direct flights from Idaho Falls to Casper?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Idaho Falls to Casper?
The quickest journey we've seen takes about 2h 58m. Idaho Falls and Casper are around 460 km apart.
Which airlines fly from Idaho Falls to Casper?
Recent fares on this route were with United Airlines.
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