Cheap Flights from Phoenix to Idaho Falls from $190

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Flight deals from Phoenix to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Phoenix to Idaho Falls Airport? If you want to travel next month, return fares start from $234. Find the lowest prices on one-way and return tickets right here.

Idaho Falls.$190 per passenger.Departing Mon, 13 Jul, returning Fri, 31 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Mon, 13 Jul, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 31 Jul, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $190, select.

Idaho Falls.$190 per passenger.Departing Sun, 21 Jun, returning Fri, 3 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 21 Jun, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 3 Jul, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $190, select.

Idaho Falls.$190 per passenger.Departing Sun, 21 Jun, returning Tue, 30 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 21 Jun, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Tue, 30 Jun, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $190, select.

Idaho Falls.$192 per passenger.Departing Thu, 6 Aug, returning Fri, 21 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 6 Aug, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 21 Aug, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $192, select.

Idaho Falls.$208 per passenger.Departing Fri, 29 May, returning Fri, 19 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Fri, 29 May, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 19 Jun, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $208, select.

Idaho Falls.$234 per passenger.Departing Thu, 21 May, returning Sun, 24 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 21 May, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Sun, 24 May, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $234, select.

Idaho Falls.$237 per passenger.Departing Fri, 31 Jul, returning Thu, 20 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Fri, 31 Jul, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Thu, 20 Aug, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $237, select.

Idaho Falls.$445 per passenger.Departing Sun, 27 Sep, returning Sun, 11 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 27 Sep, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Sun, 11 Oct, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $445, select.

Idaho Falls.$465 per passenger.Departing Thu, 30 Apr, returning Mon, 4 May.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 30 Apr, arriving in Idaho Falls.Inbound indirect flight with Allegiant Air, departs from Idaho Falls on Mon, 4 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $465, select.

Idaho Falls.$502 per passenger.Departing Thu, 23 Apr, returning Mon, 27 Apr.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 23 Apr, arriving in Idaho Falls.Inbound indirect flight with Allegiant Air, departs from Idaho Falls on Mon, 27 Apr, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $502, select.

Idaho Falls.$588 per passenger.Departing Thu, 16 Apr, returning Sun, 19 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 16 Apr, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Sun, 19 Apr, arriving in Phoenix-Mesa Gateway.Price includes taxes and charges.From $588, select.

Idaho Falls.$934 per passenger.Departing Thu, 1 Oct, returning Sun, 4 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Thu, 1 Oct, arriving in Idaho Falls.Inbound indirect flight with Delta, departs from Idaho Falls on Sun, 4 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $934, select.

Find the cheapest month to fly from Phoenix to Idaho Falls

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to Idaho Falls flights are currently cheapest in June.

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Direct flights from Phoenix to Idaho Falls

Phoenix to Idaho Falls: Alternative routes

Compare routes from Phoenix to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

Idaho Falls

4km from central Idaho Falls

ClosestCheapest

from $190

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Pocatello

79km from central Idaho Falls

from $811

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Phoenix to Idaho Falls: Flight information

The things to know before you go.

Cheapest flight found	$79
Cheapest month to fly	July
Average flight time	2 hrs, 5 mins
Most popular airline	Allegiant Air
Average flights per week	24

Finding cheap flights from Phoenix to Idaho Falls: Frequently asked questions

How much are return flights from Phoenix to Idaho Falls?

The best price we found for a return flight from Phoenix to Idaho Falls is $190. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Phoenix to Idaho Falls?

2 hours and 4 minutes is the average flight time from Phoenix to Idaho Falls.

Which airlines fly direct from Phoenix to Idaho Falls?

Allegiant Air, SkyWest Airlines and American Airlines fly direct from Phoenix to Idaho Falls.

How many flights are there a week from Phoenix to Idaho Falls?

As of April 2026, there are 24 flights per week flying from Phoenix to Idaho Falls.

When is the cheapest time to fly from Phoenix to Idaho Falls?

The cheapest month to fly from Phoenix to Idaho Falls is usually June.

Which upcoming date is cheapest to fly from Phoenix to Idaho Falls Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to Idaho Falls Airport on Sunday, 21 June 2026.

Can I get a direct flight from Phoenix to Idaho Falls Airport?

Yes – the average flight time is 2 hours and 4 minutes.

How can I find the best flight deal to Idaho Falls?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Idaho Falls?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Phoenix to Idaho Falls with?

The cheapest airline that flies to Idaho Falls is Allegiant Air .

Travelling from Phoenix to Idaho Falls Regional Airport (IDA): What you need to know

Your adventure gets underway at one of Phoenix's main airports, Phoenix Sky Harbour International Airport (PHX) or Phoenix-Mesa Gateway Airport (AZA). Explore the options for booking a flight from Phoenix to Idaho Falls Regional Airport (IDA) taking off from either of these.
Idaho Falls is one hour ahead of Phoenix. Idaho Falls Regional Airport is located in Idaho Falls, which follows the UTC-6 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport with enough time to board your flight from Phoenix to IDA.
Longer lines at check-in and security are likely if you're heading away during high season, so allow even more breathing space. The recommendation for peak periods? Get there up to four hours ahead for international flights and two hours for domestic departures.

Airports in Phoenix

Phoenix Scottsdale Municipal Airport (SCF)

The journey from central Phoenix to SCF takes around 1 hour 55 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 32 kilometres in 35 minutes or so, depending on traffic.
Looking for a comfortable hotel close to Phoenix Scottsdale Municipal Airport? If you're catching an early flight from Phoenix to Idaho Falls Regional Airport, these accommodation options will put you moments from your departure lounge:

Phoenix Sky Harbour International Airport (PHX)

You can book a direct Phoenix to Idaho Falls Regional Airport (IDA) flight ticket with departures from Phoenix Sky Harbour International Airport (PHX). Decide if leaving from PHX is a better fit for your trip.
Take a direct flight from Phoenix to IDA with American Airlines. This is one of the top airlines that operates this route out of PHX.
American Airlines is the most popular choice for passengers flying from PHX to IDA.
Go with American Airlines if you're looking for punctuality. Its flights between Phoenix Sky Harbour International Airport and Idaho Falls Regional Airport land as scheduled 80.0% of the time.
PHX is about 8 kilometres from central Phoenix. It takes 10 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 35 minutes.
Want to enjoy an extra night away before boarding your Phoenix to IDA flight? Check in to a hotel near Phoenix Sky Harbour International Airport before your adventure officially begins. These stays are expecting you:
Flights from Phoenix Sky Harbour International Airport have a reputation for punctuality, with 82.57% of them landing as expected.
You'll find PHX at 3400 Sky Harbour Boulevard.

Phoenix-Mesa Gateway Airport (AZA)

Get straight to the good part and take a direct flight from Phoenix to Idaho Falls Regional Airport leaving from Phoenix-Mesa Gateway Airport (AZA).
Allegiant Air is one airline that offers direct Phoenix to IDA flight tickets from AZA.
The preferred airline for passengers flying between AZA and IDA is Allegiant Air.
Allegiant Air ranks highest for on-time performance. An impressive 83.72% of its departures on this route arrive without delay.
On your way to AZA from central Phoenix? The airport is around 56 kilometres away, and getting there takes roughly 40 minutes by car.
Take the 'what ifs' out of departure day — stay near Phoenix-Mesa Gateway Airport and know you'll make it to the terminal with time to spare. Check in to one of these hotels the day before if you're catching an early Phoenix to Idaho Falls Regional Airport flight:
The on-time performance rating of AZA is 78.65%. To put it simply, that's how often flights that depart this airport arrive at their final stop as planned.
You'll find Phoenix-Mesa Gateway Airport at 6033 S. Sossaman Rd..

About Idaho Falls Regional Airport (IDA)

Reserve a hotel close to IDA if you have a late flight from Phoenix to Idaho Falls Regional Airport. Settle into one of these accommodation options and be in bed sooner:
You'll find IDA at 2140 North Skyline.

Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

Idaho Falls Regional Airport to the centre of Idaho Falls is about 3 kilometres. If you're taking a cab or renting a car, plan ahead to make your trip as easy as possible. Journey times vary based on traffic and the time of day.
It takes around 1 hour if you're using public transport.

How to find the cheapest flights from Phoenix to Idaho Falls Regional Airport (IDA)

$79 is the lowest price for a one-way ticket from Phoenix to Idaho Falls Regional Airport. Return flights start from $190. These fares may change based on demand.
Don't wait until the last minute. You're more likely to find cheap flights from Phoenix to IDA if you book early. Airlines often offer some amazing early bird rates.
If you're flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price across each month when searching for your Phoenix to Idaho Falls Regional Airport ticket.
You don't need to search every day to find out if fares have dropped when you set up a Price Alert. We'll let you know when a lower fare pops up on flight tickets from Phoenix to IDA.
Filters make it easier to save some cash on your flight from Phoenix to Idaho Falls Regional Airport. Pick the departure times, carriers and stops that look good to you. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

The best time to fly from Phoenix to Idaho Falls Regional Airport (IDA)

July is the busiest month for flights from Phoenix to Idaho Falls Regional Airport (IDA). Visit Idaho Falls in February if you prefer a quieter experience.
Before locking in your Phoenix to IDA flight ticket, consider the weather you're most comfortable in. July is the warmest month in Idaho Falls, with temperatures ranging from 11ºC to 35ºC.
Look for cheap tickets from Phoenix to Idaho Falls Regional Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -15ºC and 1ºC.

More about Idaho Falls

When it comes to looking for somewhere to rest your head, you'll find the best stays in Idaho Falls right here. Explore these hotels once you've locked in your flight from Phoenix to Idaho Falls Regional Airport:
Idaho Falls River Walk and Shadow's Park are a couple of top-rated attractions to add to your Idaho Falls itinerary. Continue your sightseeing adventures at Snake River Landing.

Explore more of the United States

Idaho Falls is easy to fall in love with, but there are so many other parts of the United States you should also see. Around 257 kilometres south of Idaho Falls, a trip to Ogden will keep you busy. Start with leading sights like Snowbasin Resort, Dinosaur Park and Museum and Mt. Ogden Park-East Field (#4080).
Around 274 kilometres south of Idaho Falls, Layton is another favourite stop in the United States. Experience major highlights starting with Adams Canyon Trail, SeaQuest Utah and SeaQuest Interactive Aquarium.