Cheap flights from Casper to Idaho Falls

One-way fares from $359 · CPR → IDA · prices found by travellers in the last 48 hours

Compare all dates Idaho Falls → Casper
Cheapest fare
$359

United Airlines · Fri, Nov 13

Cheapest month
November

from $359

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 24m

460 km

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Cheapest month to fly from Casper to Idaho Falls

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $359

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

United Airlines
Depart05:15 Fri, Nov 13CPR → IDA 3h 24m · 1 stop
$359one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Idaho Falls

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in Idaho FallsCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in Idaho FallsTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Idaho FallsPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Idaho FallsCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Casper to Idaho Falls

Casper (CPR) and Idaho Falls (IDA) 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 3h 24m. 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 Casper to Idaho Falls?

The cheapest one-way fare we've seen recently is $359 with United Airlines, departing Friday, November 13, 2026.

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

November 2026 currently has the lowest fares, from $359 one way.

Are there direct flights from Casper to Idaho Falls?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Casper to Idaho Falls?

The quickest journey we've seen takes about 3h 24m. Casper and Idaho Falls are around 460 km apart.

Which airlines fly from Casper to Idaho Falls?

Recent fares on this route were with United Airlines.

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