Does Allegiant Air fly into any other airports in or near Idaho Falls?

No – if you want to travel with Allegiant Air, Idaho Falls is currently the only airport serving Idaho Falls.

Which other airlines can I fly to Idaho Falls with?

At the moment, SkyWest Airlines, American Airlines, Allegiant Air, Qatar Airways and United all fly to Idaho Falls too.

What’s the cheapest month to fly to Idaho Falls with Allegiant Air?

Although it's difficult to get an accurate idea of when Allegiant Air flights to Idaho Falls are cheapest, the cheapest plane tickets are currently for departures in July .

$43 Allegiant Air Flights to Idaho Falls

The best Allegiant Air flight deals to Idaho Falls

Looking for a last-minute deal or the best direct flight? Find the biggest savings on one-way and round-trip flights to Idaho Falls with Allegiant Air right here.

Idaho Falls.$43 per passenger.Departing Fri, Jul 5.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Jul 5, arriving in Idaho Falls.Price includes taxes and charges.From $43, select.

Idaho Falls.$50 per passenger.Departing Thu, Aug 8.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Phoenix-Mesa Gateway on Thu, Aug 8, arriving in Idaho Falls.Price includes taxes and charges.From $50, select.

Idaho Falls.$55 per passenger.Departing Fri, Sep 13.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Sep 13, arriving in Idaho Falls.Price includes taxes and charges.From $55, select.

Idaho Falls.$70 per passenger.Departing Fri, Jun 21.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Jun 21, arriving in Idaho Falls.Price includes taxes and charges.From $70, select.

Idaho Falls.$72 per passenger.Departing Mon, Oct 21.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Santa Ana John Wayne on Mon, Oct 21, arriving in Idaho Falls.Price includes taxes and charges.From $72, select.

Idaho Falls.$132 per passenger.Departing Thu, Dec 26.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Phoenix-Mesa Gateway on Thu, Dec 26, arriving in Idaho Falls.Price includes taxes and charges.From $132, select.

Find the cheapest time to fly to Idaho Falls with Allegiant Air

Flexible on travel dates? Here's when plane tickets are cheapest.

Jun

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Aug

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Alternative routes to Idaho Falls

We found flights to one other airport near Idaho Falls. Find the one that works for you.

Flying to Idaho Falls with Allegiant Air

The things to know before you go.

Cheapest flight found	$43
Cheapest month to fly	July
Nearby cities to visit	Idaho Falls
Time difference between Washington, D.C. and Idaho Falls	2 hrs (GMT -6)

How to find cheap flights to Idaho Falls with Allegiant Air

Looking for cheap plane tickets to Idaho Falls? Here are a few tips on how to find the best price.

Simply hit "search"

We've compared every online travel agent and flight provider to find the cheapest Allegiant Air plane tickets to anywhere in the world, including Idaho Falls.

Fly from Las Vegas Harry Reid International

At the moment, the best route to Idaho Falls with Allegiant Air is from Las Vegas Harry Reid International.

Flex your dates for the best rates

If you’re flexible on your departure dates, hit Whole month as you search. You'll see the cheapest month, and even day, to fly to Idaho Falls with Allegiant Air.

Set up a Price Alert

Got your eye on a specific flight to Idaho Falls but not quite ready to book? No worries. We'll let you know when the price of the flight goes up or down so you can book when the time is just right. You're even able to watch specific Allegiant Air flights.

Book your Allegiant Air flight to Idaho Falls Airport with extra peace of mind

Find flexible Allegiant Air flights to Idaho Falls Airport

Allegiant Air might offer amendable tickets to Idaho Falls Airport, which means you won't lose out if your booking has to be changed or canceled.

Add travel cost protection

Make sure you have the right travel insurance before flying to Idaho Falls Airport. That way you can cover the costs of any unexpected events, such as delays or lost luggage.

Reduce your carbon footprint

To check whether there are any lower-emissions flights available on your route, simply check the “only show flights with lower CO₂ emissions” box when you search for a flight with us.

Flying to Idaho Falls with Allegiant Air: FAQs

: No – if you want to travel with Allegiant Air, Idaho Falls is currently the only airport serving Idaho Falls.
: At the moment, SkyWest Airlines, American Airlines, Allegiant Air, Qatar Airways and United all fly to Idaho Falls too.
: Although it's difficult to get an accurate idea of when Allegiant Air flights to Idaho Falls are cheapest, the cheapest plane tickets are currently for departures in July.