$51 Find Cheap Flights from Phoenix-Mesa Gateway to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix-Mesa Gateway to Idaho departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Idaho, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Idaho, as well as popular online travel agencies
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Cheap Flights from Phoenix-Mesa Gateway to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boisenonstop$82
Idaho Falls
Idaho Fallsnonstop$104
Spokane
Spokanenonstop$108
Boise
Boisenonstop$82
Idaho Falls
Idaho Fallsnonstop$104
Spokane
Spokanenonstop$108

Book Cheap Phoenix-Mesa Gateway to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix-Mesa Gateway to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix-Mesa Gateway to Idaho

Mon, Aug 18 - Mon, Aug 25
Allegiant Air Logo
6:31 pm - 9:39 pmAZA-BOI
2h 08mnonstop
Allegiant Air Logo
10:29 pm - 11:38 pmBOI-AZA
2h 09mnonstop
$82Allegiant Air
Find Deal
Fri, Sep 5 - Mon, Sep 8
Allegiant Air Logo
4:08 pm - 7:10 pmAZA-BOI
2h 02mnonstop
Allegiant Air Logo
8:00 pm - 9:07 pmBOI-AZA
2h 07mnonstop
$89Allegiant Air
Find Deal
Mon, Aug 25 - Mon, Sep 1
Allegiant Air Logo
6:31 pm - 9:39 pmAZA-BOI
2h 08mnonstop
Allegiant Air Logo
10:29 pm - 11:38 pmBOI-AZA
2h 09mnonstop
$104Allegiant Air
Find Deal
Fri, Sep 12 - Mon, Sep 22
Allegiant Air Logo
5:51 pm - 8:53 pmAZA-BOI
2h 02mnonstop
Allegiant Air Logo
8:00 pm - 9:07 pmBOI-AZA
2h 07mnonstop
$112Allegiant Air
Find Deal
Fri, Oct 24 - Mon, Oct 27
Allegiant Air Logo
12:14 pm - 3:19 pmAZA-BOI
2h 05mnonstop
Allegiant Air Logo
8:42 pm - 9:47 pmBOI-AZA
2h 05mnonstop
$113Allegiant Air
Find Deal
Mon, Oct 20 - Mon, Oct 27
Allegiant Air Logo
12:52 pm - 3:59 pmAZA-BOI
2h 07mnonstop
Allegiant Air Logo
8:42 pm - 9:47 pmBOI-AZA
2h 05mnonstop
$120Allegiant Air
Find Deal
Fri, Oct 24 - Fri, Oct 31
Allegiant Air Logo
12:14 pm - 3:19 pmAZA-BOI
2h 05mnonstop
Allegiant Air Logo
9:54 pm - 10:59 pmBOI-AZA
2h 05mnonstop
$124Allegiant Air
Find Deal
Mon, Oct 20 - Fri, Oct 31
Allegiant Air Logo
12:52 pm - 3:59 pmAZA-BOI
2h 07mnonstop
Allegiant Air Logo
9:54 pm - 10:59 pmBOI-AZA
2h 05mnonstop
$128Allegiant Air
Find Deal
Fri, Sep 5 - Mon, Sep 8
 Logo
9:10 am - 1:21 pmAZA-BOI
27h 11m2 stops
 Logo
8:00 pm - 9:07 pmBOI-AZA
2h 07mnonstop
Mon, Sep 8 - Sat, Sep 13
 Logo
4:08 pm - 7:10 pmAZA-BOI
2h 02mnonstop
 Logo
2:16 pm - 10:55 pmBOI-AZA
33h 39m3 stops
Booking Insights

KAYAK's insights & trends for Phoenix-Mesa Gateway to Idaho flights

Get data-powered insights and trends into flights from Phoenix-Mesa Gateway to Idaho to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Phoenix-Mesa Gateway Airport to Idaho flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Phoenix-Mesa Gateway Airport to Idaho.

The cheapest ticket to Idaho from Phoenix-Mesa Gateway Airport found in the last 72 hours was to Boise, at $130 round-trip. The most popular route is from Phoenix-Mesa Gateway Airport (AZA) to Idaho Falls (IDA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $189.

What’s the cheapest day of the week to fly from Phoenix-Mesa Gateway to Idaho?

The average price of all round-trip flights from Phoenix-Mesa Gateway Airport to Idaho clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Idaho on a Friday and more expensive on a Wednesday. On your return trip to Phoenix-Mesa Gateway, you should consider flying back on a Friday, and avoid Wednesdays for better deals.


Good to know

Low seasonJanuary
Cheapest flight$51
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Phoenix-Mesa Gateway to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Phoenix-Mesa Gateway to Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix-Mesa Gateway to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix-Mesa Gateway to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Phoenix-Mesa Gateway to Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix-Mesa Gateway to Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Phoenix-Mesa Gateway to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix-Mesa Gateway to Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Phoenix-Mesa Gateway to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the morning, when round-trip flights cost $199 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the evening, which is peak travel time and where the average cost of a ticket is $212.

Reviews of the top airline flying from Phoenix-Mesa Gateway to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Idaho. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix-Mesa Gateway to Idaho? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Allegiant AirOverall score based on 703 reviews
6.8Comfort
7.6Boarding
8.1Crew
5.5Entertainment
5.9Food
Airline reviews

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

2.0 MediocreAnonymous, Jul 2025HGR - MYR
Read more Allegiant Air reviews

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

Everything you need to know for your flight from Phoenix-Mesa Gateway to Idaho

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