Allegiant AirDepart09:02
Thu, Nov 12IDA → AZA
2h 02m · Direct
$144one way, per person
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- Cheapest fare
- $144
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 2h 02m
Allegiant Air · Thu, Nov 12
from $144
Allegiant Air
1,120 km
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Cheapest month to fly from Idaho Falls to Phoenix
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 Phoenix
Idaho Falls (IDA) and Phoenix (PHX) are about 1,120 km apart. Direct flights take around 2h 02m, and recent direct fares were with Allegiant Air. Over the next few months, one-way fares start from $144, 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 Phoenix?
The cheapest one-way fare we've seen recently is $144 with Allegiant Air, departing Thursday, November 12, 2026.
What is the cheapest month to fly from Idaho Falls to Phoenix?
November 2026 currently has the lowest fares, from $144 one way.
Are there direct flights from Idaho Falls to Phoenix?
Yes. Recent direct fares were with Allegiant Air.
How long is the flight from Idaho Falls to Phoenix?
A direct flight takes about 2h 02m. Idaho Falls and Phoenix are around 1,120 km apart.
Which airlines fly from Idaho Falls to Phoenix?
Recent fares on this route were with Allegiant Air.
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