$184 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 5/21. 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
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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
Boise1 stop$354
Idaho Falls
Idaho Fallsnonstop$129
Spokane
Spokanenonstop$139
Boise
Boise1 stop$354
Idaho Falls
Idaho Fallsnonstop$129
Spokane
Spokanenonstop$139

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

Sun, May 31 - Sun, Jun 7
Allegiant Air Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Allegiant Air Logo
3:07 pm - 7:24 pm
BOI
-
AZA
5h 17m
1 stop
$354Allegiant Air
Sun, May 24 - Sat, May 30
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
2:10 pm - 7:58 am
BOI
-
AZA
18h 48m
2 stops
$380Multiple Airlines
Sun, May 24 - Thu, May 28
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
4:00 pm - 7:08 am
BOI
-
AZA
16h 08m
2 stops
$383Multiple Airlines
Sun, May 24 - Tue, Jun 2
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
1:25 pm - 8:48 pm
BOI
-
AZA
32h 23m
2 stops
$395Multiple Airlines
Sun, May 24 - Sun, May 31
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
4:00 pm - 7:08 am
BOI
-
AZA
16h 08m
2 stops
$428Multiple Airlines
Sun, May 24 - Sun, May 31
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
4:00 pm - 7:08 am
BOI
-
AZA
16h 08m
2 stops
$437Multiple Airlines
Thu, May 28 - Sat, May 30
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
2:10 pm - 7:58 am
BOI
-
AZA
18h 48m
2 stops
$441Multiple Airlines
Thu, May 21 - Thu, May 28
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
4:00 pm - 7:08 am
BOI
-
AZA
16h 08m
2 stops
$462Multiple Airlines
Thu, May 21 - Sat, May 30
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
2:10 pm - 7:58 am
BOI
-
AZA
18h 48m
2 stops
$466Multiple Airlines
Thu, May 21 - Tue, Jun 2
Multiple Airlines Logo
9:00 am - 3:10 pm
AZA
-
BOI
5h 10m
1 stop
Multiple Airlines Logo
1:25 pm - 8:48 pm
BOI
-
AZA
32h 23m
2 stops
$474Multiple Airlines
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 Idaho Falls, at $165 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 $165.

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

The average price for all round-trip flights from Phoenix-Mesa Gateway Airport to Idaho depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Idaho is generally in the evening, when round-trip flights cost $110 on average. Morning departures are around 153% more expensive than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the morning, which is peak travel time and where the average cost of a ticket is $279.

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 $205, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Phoenix-Mesa Gateway Airport to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix-Mesa Gateway Airport to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix-Mesa Gateway Airport to Idaho is October, when tickets cost $82 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $174 and $149 respectively.

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 Friday, and avoid Mondays for better deals.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$184
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 22% 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.

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.
7.3
Allegiant AirOverall score based on 707 reviews
7.6Boarding
8.1Crew
5.8Food
6.9Comfort
5.4Entertainment
Airline reviews

Great. No choice for n/a. No food or entertainment options

10.0 ExcellentRobyn, Apr 2026
HGR - PIE
Read more Allegiant Air reviews

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

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

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)