$56 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 2/27. 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, 0 bags

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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Flight Deals

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$114
Idaho Falls
Idaho Fallsnonstop$167
Spokane
Spokanenonstop$154
Boise
Boisenonstop$114
Idaho Falls
Idaho Fallsnonstop$167
Spokane
Spokanenonstop$154

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

Fri, Feb 27 - Mon, Mar 2
Allegiant Air Logo
2:35 pm - 4:47 pm
AZA
-
BOI
2h 12mnonstop
Allegiant Air Logo
5:37 pm - 7:53 pm
BOI
-
AZA
2h 16mnonstop
$114Allegiant Air
Fri, Feb 27 - Fri, Mar 6
Allegiant Air Logo
2:35 pm - 4:47 pm
AZA
-
BOI
2h 12mnonstop
Allegiant Air Logo
5:37 pm - 7:47 pm
BOI
-
AZA
2h 10mnonstop
$136Allegiant Air
Fri, Mar 27 - Mon, Mar 30
Allegiant Air Logo
2:01 pm - 5:13 pm
AZA
-
BOI
2h 12mnonstop
Allegiant Air Logo
6:03 pm - 7:13 pm
BOI
-
AZA
2h 10mnonstop
$141Allegiant Air
Fri, Feb 13 - Mon, Feb 16
Allegiant Air Logo
2:38 pm - 4:51 pm
AZA
-
BOI
2h 13mnonstop
Allegiant Air Logo
5:41 pm - 7:58 pm
BOI
-
AZA
2h 17mnonstop
$175Allegiant Air
Fri, Feb 13 - Fri, Feb 20
Allegiant Air Logo
2:38 pm - 4:51 pm
AZA
-
BOI
2h 13mnonstop
Allegiant Air Logo
5:41 pm - 7:58 pm
BOI
-
AZA
2h 17mnonstop
$198Allegiant Air
Mon, Mar 16 - Thu, Mar 19
Allegiant Air Logo
2:01 pm - 5:13 pm
AZA
-
BOI
2h 12mnonstop
Allegiant Air Logo
5:20 pm - 11:10 pm
BOI
-
AZA
6h 50m
1 stop
$226Allegiant Air
Mon, Apr 13 - Sun, Apr 19
Allegiant Air Logo
2:28 pm - 5:35 pm
AZA
-
BOI
2h 07mnonstop
Allegiant Air Logo
5:38 pm - 10:04 pm
BOI
-
AZA
5h 26m
1 stop
$254Allegiant Air
Mon, Apr 13 - Thu, Apr 16
Allegiant Air Logo
2:28 pm - 5:35 pm
AZA
-
BOI
2h 07mnonstop
Allegiant Air Logo
3:13 pm - 8:14 pm
BOI
-
AZA
6h 01m
1 stop
$262Allegiant Air
Fri, Feb 13 - Thu, Feb 19
Allegiant Air Logo
2:38 pm - 4:51 pm
AZA
-
BOI
2h 13mnonstop
Allegiant Air Logo
2:48 pm - 9:14 pm
BOI
-
AZA
6h 26m
1 stop
$308Allegiant Air
Sun, Apr 12 - Sun, Apr 19
Allegiant Air Logo
10:00 am - 4:23 pm
AZA
-
BOI
5h 23m
1 stop
Allegiant Air Logo
5:38 pm - 10:04 pm
BOI
-
AZA
5h 26m
1 stop
$310Allegiant Air
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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Idaho from Phoenix-Mesa Gateway Airport found in the last 72 hours was to Boise, at $86 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 $115.

Can I save money by flying with a layover from Phoenix-Mesa Gateway Airport to Idaho?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $121, prices are generally cheapest when you fly direct.

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 Monday. On your return trip to Phoenix-Mesa Gateway, you should consider flying back on a Monday, and avoid Fridays for better deals.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$56
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 23% increase in price.
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 $123 on average. Morning departures are around 5% 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 $130.

Top tips for finding cheap flights to Idaho

  • Looking for a cheap flight? 25% of our users found tickets from Phoenix-Mesa Gateway to the following destinations at these prices or less: Idaho Falls $92 one-way - $156 round-trip

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 707 reviews
6.8Comfort
8.1Crew
5.5Entertainment
5.9Food
7.6Boarding
Airline reviews

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

10.0 ExcellentRoxann, Jan 2026
SRQ - BLV
Read more Allegiant Air reviews

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

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

Information on your arrival and departure airports

Phoenix-Mesa Gateway (AZA)