Cheap flights from Denver to Idaho Falls

One-way fares from $212 · DEN → IDA · prices found by travellers in the last 48 hours

Compare all dates Idaho Falls → Denver
Cheapest fare
$212

Frontier Airlines · Thu, Nov 12

Cheapest month
November

from $212

Direct flights
Yes

United Airlines

Flight time
1h 53m

720 km

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Cheapest month to fly from Denver to Idaho Falls

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

  1. November 2026 Cheapest $212

Cheapest dates in November 2026

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

Frontier Airlines
Depart22:29 Thu, Nov 12DEN → IDA 4h 15m · 1 stop
$212one way, per person
View deal
United Airlines
Depart08:00 Sat, Nov 14DEN → IDA 1h 53m · Direct
$223one way, per person
View deal
United Airlines
Depart08:00 Fri, Nov 13DEN → IDA 1h 53m · Direct
$228one 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 Denver to Idaho Falls

Denver (DEN) and Idaho Falls (IDA) are about 720 km apart. Direct flights take around 1h 53m, and recent direct fares were with United Airlines. Over the next few months, one-way fares start from $212, 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 Denver to Idaho Falls?

The cheapest one-way fare we've seen recently is $212 with Frontier Airlines, departing Thursday, November 12, 2026.

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

November 2026 currently has the lowest fares, from $212 one way.

Are there direct flights from Denver to Idaho Falls?

Yes. Recent direct fares were with United Airlines.

How long is the flight from Denver to Idaho Falls?

A direct flight takes about 1h 53m. Denver and Idaho Falls are around 720 km apart.

Which airlines fly from Denver to Idaho Falls?

Recent fares on this route were with Frontier Airlines and United Airlines.

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