Cheap Flights from Phoenix-Mesa Gateway to Idaho Falls

Compare Phoenix-Mesa Gateway to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

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Flight deals from Phoenix-Mesa Gateway to Idaho Falls

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

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

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

Direct flights from Phoenix-Mesa Gateway to Idaho Falls

Phoenix-Mesa Gateway to Idaho Falls: Alternative routes

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

Phoenix to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 2,250
Cheapest month to flyOctober
Average flight time2 hrs
Most popular airlineAllegiant Air
Average flights per week4

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

The best price we found for a return flight from Phoenix-Mesa Gateway to Idaho Falls is ج.م.‏ 4,988. 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.
2 hours is the average flight time from Phoenix-Mesa Gateway to Idaho Falls.
Allegiant Air flies direct from Phoenix-Mesa Gateway to Idaho Falls.
As of July 2025, there are 4 flights per week flying from Phoenix-Mesa Gateway to Idaho Falls.
The cheapest month to fly from Phoenix-Mesa Gateway to Idaho Falls is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phoenix-Mesa Gateway Airport to Idaho Falls Airport on Friday, 17 October 2025.
Yes – the average flight time is 2 hours.
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.
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.
Currently, Allegiant Air offers the cheapest flight tickets to Idaho Falls.

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

  • Book a direct flight from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport and you'll be in the air for an average of 2 hours.

  • Choose from three weekly Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport flights. The 06:00 departure with Allegiant Air is the earliest you can take. Allegiant Air operates the latest service of the day at 18:55.

  • To ensure you get on your AZA to IDA flight, leave enough time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Flying during a peak month such as December? School holidays and other popular seasons can lead to longer queues at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • Allegiant Air offers direct flights from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport. Book with this popular airline, then get ready to see the sights in Idaho Falls — and maybe even more of United States if your schedule allows.

  • The airline that passengers book most often on this route is Allegiant Air.

  • Allegiant Air is the most punctual carrier that operates AZA to IDA flights. An exceptional 83.72% of its services on this route land on time.

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

  • Currently, ج.م.‏ 2,250 is the cheapest price we've found for a one-way Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport flight. The best price for a return plane ticket is ج.م.‏ 4,988. Keep in mind that fares may change due to availability at the time of booking.

  • Get cheap tickets from AZA to IDA by booking at least six months ahead. Based on our research, that's the sweet spot for finding a bargain.

  • May is the cheapest month for flights from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport. If you'd like to travel at a different time of year, the 'Whole month' tool will show you the lowest airfares for each month.

  • There's no need to check every day to find out if fares have gone down when you create a Price Alert. We'll send you an update as soon as there's a new deal on cheap flights from AZA to IDA.

  • Tailor your flights with filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport.

Handy information about Phoenix-Mesa Gateway Airport (AZA)

  • AZA is located at 6033 S. Sossaman Rd..

  • When it comes to the on-time performance of Phoenix-Mesa Gateway Airport, data shows 78.65% of flights complete their journey on time.

  • Central Phoenix to Phoenix-Mesa Gateway Airport is approximately 56 kilometres. Depending on traffic, it'll take about 40 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Get your journey off to a stress-free start by staying near AZA. Whether you're taking an early flight from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport or just don't like being rushed, these hotels have you covered:

Arriving at Idaho Falls Regional Airport (IDA)

  • Reserve a hotel close to IDA if you're on a late Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport flight. Check in to one of these accommodation options and skip the long transfer:

  • Grab an Idaho Falls Regional Airport rental car and explore Idaho Falls and beyond with your own wheels. Budget, Avis and Alamo are top providers to choose from here.

  • To get the best possible deal, reserve your vehicle from Idaho Falls Regional Airport a few weeks in advance. Rates typically rise as your departure date approaches.

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

  • The street address for IDA is 2140 North Skyline.

  • Idaho Falls Regional Airport to central Idaho Falls has a drive time of around 10 minutes. It's approximately 5 kilometres away.

  • Getting to the centre by public transport typically takes 1 hour.

When to fly to Idaho Falls Regional Airport (IDA)

  • The quietest month for a flight from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport is February, while July is the busiest. Choose the ideal time to visit Idaho Falls based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Lock in your flight from Phoenix-Mesa Gateway Airport to Idaho Falls Regional Airport for July if you want to go to Idaho Falls during its warmest month. You can expect temperatures of between 11ºC and 35ºC.

  • January has average temperatures of between -15ºC and 1ºC. Look for cheap tickets from AZA to IDA sometime then if you like travelling in cooler conditions.

Explore more of United States

  • You've seen Idaho Falls, now it's time to discover other corners of United States. Journey about 306 kilometres south to Salt Lake City to check off its leading sights. From Temple Square to Utah State Capitol and Red Butte Garden, there's plenty to keep you busy.

  • If you want to check out another side of United States, head for Boise, roughly 338 kilometres west of Idaho Falls. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.