Cheap Flights from Idaho Falls to Phoenix from $166

Compare Idaho Falls to Phoenix flight deals

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

Book the best Phoenix fare with no extra fees

Flight deals from Idaho Falls to Phoenix

Looking for a cheap last-minute deal or the best return flight from Idaho Falls Airport to Phoenix? If you want to travel next month, return fares start from $187. Find the lowest prices on one-way and return tickets right here.

Phoenix.$166 per passenger.Departing Fri, 31 Jul, returning Fri, 14 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 31 Jul, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Fri, 14 Aug, arriving in Idaho Falls.Price includes taxes and charges.From $166, select.

Phoenix.$167 per passenger.Departing Thu, 13 Aug, returning Fri, 14 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Thu, 13 Aug, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Fri, 14 Aug, arriving in Idaho Falls.Price includes taxes and charges.From $167, select.

Phoenix.$187 per passenger.Departing Fri, 26 Jun, returning Sun, 12 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 26 Jun, 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 $187, select.

Phoenix.$187 per passenger.Departing Fri, 28 Aug, returning Sun, 13 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 28 Aug, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 13 Sep, arriving in Idaho Falls.Price includes taxes and charges.From $187, select.

Phoenix.$187 per passenger.Departing Fri, 3 Jul, returning Sun, 12 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 3 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 $187, select.

Phoenix.$207 per passenger.Departing Mon, 21 Sep, returning Sun, 11 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 21 Sep, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 11 Oct, arriving in Idaho Falls.Price includes taxes and charges.From $207, select.

Phoenix.$207 per passenger.Departing Thu, 10 Sep, returning Sun, 13 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Thu, 10 Sep, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 13 Sep, arriving in Idaho Falls.Price includes taxes and charges.From $207, select.

Phoenix.$219 per passenger.Departing Fri, 9 Oct, returning Sun, 11 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 9 Oct, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 11 Oct, arriving in Idaho Falls.Price includes taxes and charges.From $219, select.

Phoenix.$227 per passenger.Departing Fri, 26 Jun, returning Sun, 28 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 26 Jun, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Sun, 28 Jun, arriving in Idaho Falls.Price includes taxes and charges.From $227, select.

Phoenix.$231 per passenger.Departing Mon, 9 Nov, returning Wed, 11 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 9 Nov, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Wed, 11 Nov, arriving in Idaho Falls.Price includes taxes and charges.From $231, select.

Phoenix.$231 per passenger.Departing Sun, 25 Oct, returning Wed, 11 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Sun, 25 Oct, arriving in Phoenix-Mesa Gateway.Inbound direct flight with Allegiant Air departs from Phoenix-Mesa Gateway on Wed, 11 Nov, arriving in Idaho Falls.Price includes taxes and charges.From $231, select.

Find the cheapest month to fly from Idaho Falls to Phoenix

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

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Direct flights from Idaho Falls to Phoenix

Alternative Idaho Falls to Phoenix routes

Looking for the cheapest, fastest or easiest route from Idaho Falls to Phoenix? You could fly into the following airports instead.

Idaho Falls to Phoenix: Flight information

The things to know before you go.

Cheapest flight found	$166
Cheapest month to fly	July
Average flight time	2 hrs, 14 mins
Most popular airline	Allegiant Air
Average flights per week	29

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

How many airports are there in Phoenix?

There are 4 airports in Phoenix: Phoenix Sky Harbor, Phoenix Scottsdale Municipal, Phoenix-Deer Valley, and Phoenix-Mesa Gateway.

How much are return flights from Idaho Falls to Phoenix?

The best price we found for a return flight from Idaho Falls to Phoenix is $166. 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?

2 hours and 14 minutes is the average flight time from Idaho Falls to Phoenix.

Which airlines fly direct from Idaho Falls to Phoenix?

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

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

As of June 2026, there are 29 flights per week flying from Idaho Falls to Phoenix.

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

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

Which is the cheapest airport to fly into in Phoenix?

If you're flying from Idaho Falls Airport, the cheapest airport near Phoenix is Phoenix-Mesa Gateway – which is 41.9 km away from the centre of Phoenix. We've found flights into this airport from $166.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Idaho Falls Airport to Phoenix on Friday, 31 July 2026.

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

Yes – the average flight time is 2 hours and 14 minutes.

How can I get the best flight deal from Idaho Falls Airport to Phoenix?

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 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.

What’s the weather like in Phoenix?

In June, the average temperature is usually around 30°C. July is typically the warmest month in Phoenix, when it usually averages around 40°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 4°C. The rainiest month is August.

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

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

Flying from Idaho Falls Regional Airport (IDA) to Phoenix: what you need to know

Approximately 2 hours 10 minutes is how long you can expect to be in the air on a direct flight from Idaho Falls Regional Airport to Phoenix.
Phoenix's timezone is UTC-7, which is the same as Idaho Falls (the location of Idaho Falls Regional Airport).
Idaho Falls Regional Airport (IDA) to Phoenix Sky Harbour International Airport (PHX) is the most traveled route, with four departures a week to choose from. You can travel from IDA to PHX at 05:30 with American Airlines.
For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. That way, you won't have to rush to board your IDA to Phoenix flight.
Travelling during a popular month such as July? School holidays and other popular seasons can lead to longer lines at security. Play it safe and get there up to four hours ahead of an international flight and two hours before domestic departures.
Start your journey at IDA and fly straight to Phoenix Sky Harbour International Airport (PHX). That's where you can expect to touch down when searching for Idaho Falls Regional Airport to Phoenix tickets.
Book your favourite seat with American Airlines. This popular airline operates direct flights from Idaho Falls Regional Airport to Phoenix.
Located around 3 kilometres from central Idaho Falls, IDA can be reached in about 10 minutes by car. Travelling on public transport takes roughly 30 minutes.
Looking for a hotel close to IDA? If you've booked an early flight from Idaho Falls Regional Airport to Phoenix, these stays will put you moments from your departure lounge:
81% of flights departing from Idaho Falls Regional Airport touch down at their destination on time. With its strong on-time performance, you're unlikely to be delayed when taking off from IDA.
You'll find IDA at 2140 North Skyline.

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

$78 is currently the best price for a one-way Idaho Falls Regional Airport to Phoenix flight. Return plane tickets start at $166. These prices can change depending on demand and availability.
Booking in advance is often the key to securing a cheap flight from IDA to Phoenix. Fares tend to rise as seats fill up, so the closer your departure date, the more it could cost you.
The 'Whole month' search tool will show you the cheapest tickets from Idaho Falls Regional Airport to Phoenix throughout the month. It's an easy way to snap up a bargain if your plans aren't set in stone.
Spend less time searching for cheap flights from IDA to Phoenix by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.
Pick your preferred arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from Idaho Falls Regional Airport to Phoenix by 'Cheapest,' 'Best' or 'Fastest.'

Airports in Phoenix

Phoenix Sky Harbour International Airport (PHX)

Phoenix Sky Harbour International Airport (PHX) is around 5 kilometres from the centre of Phoenix. If you're opting for a ride-share or a taxi, the drive takes roughly 10 minutes.
Getting to the centre by public transport takes around 25 minutes.
If you're coming in on a late flight from Idaho Falls Regional Airport to Phoenix, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and snoozing not long after at one of these hotels near PHX:
Secure the lowest price by reserving your vehicle from Phoenix Sky Harbour International Airport around one week in advance of your flight from IDA to Phoenix.
The address for PHX is 3400 Sky Harbour Boulevard.

Phoenix-Mesa Gateway Airport (AZA)

Phoenix-Mesa Gateway Airport (AZA) is roughly 32 kilometres from the centre of Phoenix. Once you've hopped off your flight from Idaho Falls Regional Airport to Phoenix, it'll take you around 30 minutes to get to the heart of the city in a ride-share or taxi.
The journey will take roughly 1 hour 15 minutes on public transport.
There are some great places to rest your head close to AZA. Tuck yourself in and get cosy after your IDA to Phoenix flight at any of these perfectly located options:
Snap up a deal by securing your ride from AZA two weeks in advance. You'll also have access to a greater selection of vehicles.
Phoenix-Mesa Gateway Airport can be found at 6033 S. Sossaman Rd..

Best time to go to Phoenix

It's time to plan your trip dates for your flight from Idaho Falls Regional Airport to Phoenix. March is the busiest month for a trip to Phoenix. If you like a more relaxed atmosphere, go in October.
Before locking in your Idaho Falls Regional Airport to Phoenix plane ticket, think about what kind of weather you prefer. July is the warmest month in Phoenix, with temperatures ranging from 27ºC to 45ºC.
January has average temperatures of between 4ºC and 21ºC. Look for a cheap ticket from IDA to Phoenix around that time if you want to travel when it's cooler.

More about Phoenix

After booking your flight from Idaho Falls Regional Airport to Phoenix, find a hotel that offers both comfort and a great location. Make one of these options your base for exploring Phoenix:
All great adventures should include a little sightseeing. Yayoi Kusama Fireflies Infinity Mirror Room, Camelback Mountain and Heard Museum are essential stops on your Phoenix itinerary.

Explore more of the United States

Phoenix has loads to offer, but there are so many other corners of the United States waiting to be explored. Around 483 kilometres west of Phoenix, a trip to San Diego will keep your itinerary busy. Check out popular attractions like San Diego Zoo, San Diego Balboa Park and USS Midway Museum.
Las Vegas is another sought-after destination in the United States and is around 418 kilometres northwest of Phoenix. No journey is complete without visiting Ciudad del Pecado o Las Vegas, Las Vegas Strip and Fountains of Bellagio.