Cheap Flights from Idaho Falls to Phoenix-Mesa Gateway from $160

Compare Idaho Falls to Phoenix-Mesa Gateway flight deals

Find the cheapest month or even day of the year to fly to Phoenix-Mesa Gateway

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Flight deals from Idaho Falls to Phoenix-Mesa Gateway

Looking for a cheap last-minute deal or the best return flight from Idaho Falls to Phoenix-Mesa Gateway? Find the lowest prices on one-way and return tickets right here.

Phoenix.$160 per passenger.Departing Fri, 30 Jan, returning Fri, 13 Feb.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 30 Jan, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Fri, 13 Feb, arriving in Idaho Falls.Price includes taxes and charges.From $160, select.

Phoenix.$191 per passenger.Departing Mon, 5 Jan, returning Sun, 25 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 5 Jan, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 25 Jan, arriving in Idaho Falls.Price includes taxes and charges.From $191, select.

Phoenix.$212 per passenger.Departing Wed, 31 Dec, returning Thu, 8 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Wed, 31 Dec, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 8 Jan, arriving in Idaho Falls.Price includes taxes and charges.From $212, select.

Phoenix.$214 per passenger.Departing Mon, 16 Feb, returning Thu, 26 Feb.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 16 Feb, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 26 Feb, arriving in Idaho Falls.Price includes taxes and charges.From $214, select.

Phoenix.$229 per passenger.Departing Sun, 1 Mar, returning Sun, 15 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Sun, 1 Mar, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 15 Mar, arriving in Idaho Falls.Price includes taxes and charges.From $229, select.

Phoenix.$252 per passenger.Departing Mon, 16 Feb, returning Thu, 5 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 16 Feb, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 5 Mar, arriving in Idaho Falls.Price includes taxes and charges.From $252, select.

Phoenix.$338 per passenger.Departing Mon, 22 Dec, returning Thu, 25 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 22 Dec, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Thu, 25 Dec, arriving in Idaho Falls.Price includes taxes and charges.From $338, select.

Phoenix.$353 per passenger.Departing Fri, 10 Jul, returning Sun, 12 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 10 Jul, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 12 Jul, arriving in Idaho Falls.Price includes taxes and charges.From $353, select.

Find the cheapest month to fly from Idaho Falls to Phoenix-Mesa Gateway

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

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Direct flights from Idaho Falls to Phoenix-Mesa Gateway

Idaho Falls to Phoenix-Mesa Gateway: Alternative routes

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

Idaho Falls to Phoenix: Flight information

The things to know before you go.

Cheapest flight found	$159
Cheapest month to fly	January
Average flight time	2 hrs, 2 mins
Most popular airline	Allegiant Air
Average flights per week	5

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

How much are return flights from Idaho Falls to Phoenix-Mesa Gateway?

The best price we found for a return flight from Idaho Falls to Phoenix-Mesa Gateway is $160. 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 Idaho Falls to Phoenix-Mesa Gateway?

2 hours and 2 minutes is the average flight time from Idaho Falls to Phoenix-Mesa Gateway.

Which airlines fly direct from Idaho Falls to Phoenix-Mesa Gateway?

Allegiant Air flies direct from Idaho Falls to Phoenix-Mesa Gateway.

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

As of December 2025, there are 5 flights per week flying from Idaho Falls to Phoenix-Mesa Gateway.

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

The cheapest month to fly from Idaho Falls to Phoenix-Mesa Gateway is usually January.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Idaho Falls Airport to Phoenix-Mesa Gateway Airport on Friday, 30 January 2026.

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

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

How can I find the best flight deal to Phoenix-Mesa Gateway?

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 Phoenix-Mesa Gateway 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 Phoenix?

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

Which is the cheapest airline to fly from Idaho Falls Airport to Phoenix-Mesa Gateway with?

Currently, Allegiant Air offers the cheapest flight tickets to Phoenix-Mesa Gateway.

Travelling from Idaho Falls Regional Airport (IDA) to Phoenix-Mesa Gateway Airport (AZA): what you need to know

The average length of a direct flight from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport is 2 hours.
The timezone in Phoenix is UTC-7, which is one hour behind Idaho Falls.
Flights from IDA to AZA start at 08:50 — the earliest with Allegiant Air. The last departure is at 21:45 with Allegiant Air. In total, there are three weekly Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport flights.
Leave plenty of time to catch your IDA to AZA flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.
You'll likely experience bigger queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.
Allegiant Air is your ticket to exploring Phoenix (and perhaps some other great corners of United States!). Browse the direct flights from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport offered by this popular airline.
The majority of passengers choose to fly with Allegiant Air on this route.
The most punctual carrier that offers IDA to AZA flights is Allegiant Air. Its services land as planned 71.43% of the time.
If you want to explore a different city along the way, look for a flight with a stopover. To see your options for tickets from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport, uncheck 'Direct flights only.' Harry Reid Airport (formerly McCarran Airport) is a popular stop between IDA and AZA.

How to find the cheapest flights from Idaho Falls Regional Airport (IDA) to Phoenix-Mesa Gateway Airport (AZA)

$80 is currently the lowest price for a one-way Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport flight. A return flight starts at $160. These prices can change depending on demand and availability.
To secure cheap tickets from IDA to AZA, reserve your journey seven months before your planned departure.
The cheapest month for flights from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport is June. Use the 'Whole month' tool to find the lowest airfares if you have flexible travel dates.
Spend less time searching for cheap flights from IDA to AZA by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.
Tailor your trip using filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport.

Handy information about Idaho Falls Regional Airport (IDA)

IDA is located at 2140 North Skyline.
80.03% of flights departing from Idaho Falls Regional Airport reach their destination on schedule. With its reliable on-time performance, delays are unlikely when taking off from IDA.
To reach Idaho Falls Regional Airport from central Idaho Falls, it'll take around 10 minutes if you're travelling by car. This depends on traffic, however. It's approximately 5 kilometres from the airport to the city centre.
Planning to take public transport? Expect a journey time of around 1 hour.
Have an early flight from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport? Avoid the last-minute rush to the airport (and sneak in some extra snooze time) by picking one of these hotels close to IDA:

Arriving at Phoenix-Mesa Gateway Airport (AZA)

Reserve a hotel close to AZA if you have a late Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport flight. Settle into one of these accommodation options and avoid the hassle of a long transfer:
Get your adventure underway by picking up a Phoenix-Mesa Gateway Airport rental car. Grab your wheels from Dollar, Alamo or Budget to explore Phoenix and beyond.
Reserving your ride from Phoenix-Mesa Gateway Airport about two weeks ahead gives you the best chance of locking in a great deal.

Getting from Phoenix-Mesa Gateway Airport (AZA) to central Phoenix

You'll find AZA at 6033 S. Sossaman Rd..
From Phoenix-Mesa Gateway Airport, Phoenix is approximately 56 kilometres away. It takes around 40 minutes to drive to the centre.

When to fly to Phoenix-Mesa Gateway Airport (AZA)

The quietest month for a flight from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport is April, while December is the most popular. Choose the ideal time to go to Phoenix based on whether you prefer a more fast-paced or easygoing experience.
Book your flight from Idaho Falls Regional Airport to Phoenix-Mesa Gateway Airport for July if you want to go to Phoenix during its warmest month. Expect temperatures of between 26ºC and 44ºC.
January sees average temperatures of between 4ºC and 20ºC. Search for cheap tickets from IDA to AZA sometime then if you want to travel in cooler conditions.

Explore more of United States

Phoenix is always a good idea, but there are so many other parts of United States just waiting to be explored. Around 483 kilometres west of Phoenix, a trip to San Diego will keep you busy. Check out popular attractions like San Diego Zoo, USS Midway Museum and SeaWorld San Diego.
Around 418 kilometres north-west of Phoenix, Las Vegas is another essential stop in United States. Experience major highlights starting with Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience.