BOI

$47 Find Cheap Flights from Phoenix to Boise

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 to Boise departing on 10/14. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Boise, 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 Boise, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% 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
Expert advice
Booking Insights
Flight Deals

Cheap Flights from Phoenix to Boise

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Boise 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 to Boise

Thu, Nov 13 - Sun, Nov 16
Alaska Airlines Logo
8:57 pm - 11:09 pmPHX-BOI
2h 12mnonstop
Alaska Airlines Logo
6:09 pm - 8:15 pmBOI-PHX
2h 06mnonstop
$143Alaska Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 30
Southwest Logo
1:05 pm - 5:50 pmPHX-BOI
4h 45m1 stop
Southwest Logo
5:35 pm - 10:40 pmBOI-PHX
5h 05m1 stop
$145Southwest
Find Deal
Thu, Nov 13 - Mon, Nov 17
Alaska Airlines Logo
10:31 am - 12:52 pmPHX-BOI
2h 21mnonstop
Alaska Airlines Logo
4:20 pm - 11:58 pmBOI-PHX
7h 38m1 stop
$152Alaska Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
Hawaiian Airlines Logo
8:13 pm - 11:32 pmPHX-BOI
2h 19mnonstop
Hawaiian Airlines Logo
6:16 pm - 7:31 pmBOI-PHX
2h 15mnonstop
$157Hawaiian Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
American Airlines Logo
4:20 pm - 7:37 pmPHX-BOI
2h 17mnonstop
American Airlines Logo
2:16 pm - 4:40 pmBOI-PHX
2h 24mnonstop
$160American Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
Hawaiian Airlines Logo
4:17 pm - 11:22 pmPHX-BOI
6h 05m1 stop
Hawaiian Airlines Logo
6:16 pm - 7:31 pmBOI-PHX
2h 15mnonstop
$167Hawaiian Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
Southwest Logo
7:45 am - 10:55 amPHX-BOI
2h 10mnonstop
Southwest Logo
3:55 pm - 9:10 pmBOI-PHX
6h 15m2 stops
$172Southwest
Find Deal
Thu, Oct 16 - Mon, Oct 20
Delta Logo
7:04 pm - 11:59 pmPHX-BOI
3h 55m1 stop
Delta Logo
5:25 am - 12:52 pmBOI-PHX
8h 27m1 stop
$177Delta
Find Deal
Fri, Jan 16 - Tue, Jan 20
Delta Logo
2:50 pm - 8:13 pmPHX-BOI
5h 23m1 stop
Delta Logo
5:40 am - 11:16 amBOI-PHX
5h 36m1 stop
$199Delta
Find Deal
Thu, Oct 16 - Sun, Oct 19
American Airlines Logo
1:35 pm - 4:50 pmPHX-BOI
2h 15mnonstop
American Airlines Logo
6:40 am - 7:56 amBOI-PHX
2h 16mnonstop
$220American Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Southwest offers two free checked bags for extra luggage.
American's Main Cabin Extra includes early boarding.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from $143 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
AZA-BOI
Cheapest • 18% average savings
PHX-BOI
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$143
Overall average: $230
Alaska Airlines
Thu 11/13Sun 11/16
PHX - BOI • Non-stop
Cheapest one-way
$47
Typical prices: $99-254
Southwest
Tue 10/14
PHX - BOI • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Expert advice

Expert advice for your flight from Phoenix to Boise

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Southwest

Southwest offers free messaging and streaming on flights; download the app beforehand.


Book with Cash + Points for flexibility; unused points return to your account if canceled.

Read more about Southwestby Blane Bachelor
American Airlines

Basic Economy offers carry-on only travel, ideal for short flights with tight budgets.


Main Cabin Extra provides early boarding and complimentary drinks, enhancing short flight comfort.

Alaska Airlines

Saver Fares offer budget-friendly travel with last boarding and no seat assignment until check-in.


Premium Class includes priority boarding and complimentary drinks, ideal for added comfort on short flights.

Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Booking Insights

KAYAK's insights & trends for Phoenix to Boise flights

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

What is the cheapest Phoenix to Boise flight route?

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

The cheapest return flight from Phoenix to Boise costs $93 on the route between Phoenix-Mesa Gateway Airport (AZA) and Boise (BOI). Over the past month, flights between Phoenix Sky Harbor Intl Airport (PHX) and Boise (BOI) were, on average, 18% cheaper than other Phoenix-Boise routes. This is also the most popular route.

What’s the cheapest day of the week to fly from Phoenix to Boise?

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

If you are looking for a flight deal from Phoenix to Boise, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Boise, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Phoenix to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix to Boise, 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 to Boise is September, where tickets cost $197 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $307 and $295 respectively.

How far in advance should I book a flight from Phoenix to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix to Boise, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Cheapest flight$47
Flight from Phoenix Sky Harbor Airport to Boise

When to book flights from Phoenix to Boise

Are your dates flexible? Find out the best times to travel from Phoenix to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Phoenix to Boise

  • What is the cheapest flight from Phoenix to Boise?

    In the last 3 days, the lowest price for a flight from Phoenix to Boise was $47 for a one-way ticket and $143 for a round-trip.

  • Do I need a passport to fly between Phoenix and Boise?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Phoenix and on arrival in Boise.

  • Which airports will I be using when flying from Phoenix to Boise?

    On your way to Boise, you’ll fly out from one of these Phoenix airports: Phoenix-Mesa Gateway or Phoenix Sky Harbor Intl. You’ll be landing at Boise Air Term. Gowen Fld.

  • Which aircraft models fly most regularly from Phoenix to Boise?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phoenix to Boise?

    oneworld, and SkyTeam are the airline alliances operating flights between Phoenix and Boise, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Phoenix to Boise?

    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 to Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Phoenix 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 to Boise?

    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 to Boise with an airline and back to Phoenix with another airline.

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

    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 to Boise from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Phoenix to Boise?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Phoenix to Boise Air Term. Gowen Fld.
Find which airlines fly direct from Phoenix to Boise Air Term. Gowen Fld Airport, which days they fly and book direct flights.

Direct departures

Phoenix to Boise Air Term. Gowen Fld

Monday

Alaska Airlines, Allegiant Air, American Airlines, +1 more

Alaska Airlines, Allegiant Air, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Southwest, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, Allegiant Air, American Airlines, +1 more

Alaska Airlines, Allegiant Air, +2 more

Saturday

Alaska Airlines, American Airlines, Southwest, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights

Direct returns

Boise Air Term. Gowen Fld to Phoenix

Monday

Alaska Airlines, Allegiant Air, American Airlines, +1 more

Alaska Airlines, Allegiant Air, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Southwest, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, Allegiant Air, American Airlines, +1 more

Alaska Airlines, Allegiant Air, +2 more

Saturday

Alaska Airlines, American Airlines, Southwest, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Phoenix to Boise

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Boise. 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 to Boise? 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.0Entertainment
8.5Crew
7.8Comfort
7.1Food
8.1Boarding
Airline reviews

Flight was switched to a different airline. Caused scheduling issues. Flight delayed an hour, but arrived only 20 minutes late thanks to tail winds.

6.0 GoodAnonymous, Aug 2025PHX - RDM
Read more Alaska Airlines reviews

Flight was switched to a different airline. Caused scheduling issues. Flight delayed an hour, but arrived only 20 minutes late thanks to tail winds.

Flight was delayed leaving Phoenix. Arrived in Seattle, sat on taxi way for 30 minutes. No reasons given for delayed flight or sitting on taxiway for a long time. Alaska quality has been declining.

They were friendly, efficient and got our bags to us so fast at the end of the flight.

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

In GEG I arrived at 0930 for a 1600 flight. Alaska had a rule that you could not check your bags until 4 hours before flight time. I was forced to sit in a chilly lobby for hours. I had access to a bathroom, but could not go into terminal for food and drink. Boarding and flight OK

PAID First class. No use of lounge in Phoenix (should have a code share). Bags checked and not marked first class, asked attendant who stated on mark gold members. Last bag out of carousel. When you pay extra, expect that...wifi was rebooted and not functioning to allow internet access. Food and cree were very good.

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

For longer trips, snacks are puny, boring and don’t have ANY nutritional value.

Flight was smooth, but the overhead bins were not deep enough to stow bags vertically and we ran out of room - even with 8 passengers voluntarily gate-checking their bags.

Amazing. They work with my disabilities with such kindness, attention, wnd diligence. They make it easy for those of us who need a little more extra care.

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

They we able to seat my companion and I next to each other. Plane’s temperature was very cool. Willl be more prepared on return trip.

All was good and they were able to seat my travel companion next to me. Thank you.

Like the ample leg room. May as well not bother with snacks if it's only a two ounce bag of pretzels. Didn't use the entertainment option. Was there one?

What an amazing flight. I haven’t experienced this level of service in a flight in years. This will be the only way to fly to Hawaii for me in the future.

Kayak sold me a ticket after check in time. Could not check in. Could not get on flight.

Love you guys are so friendly and kind and wonderful

Agents talk too fast over intercom. I know it’s memorized and we’ve all heard it before. Just slow down a little. Stop charging for checked bags. I was pleased to get my bags promptly at each end of my flight.

Everything was great except having to check in at Alaska. That was a surprise and took extra time and effort. Should have been explained somewhere maybe on the HA electronic ticket.

It was clean and the crew was great. I wish the chairs could recline just a little more and you would provide small pillows for people with bad backs. My back is fused and a little support would be great.

I accidentally made this purchase and they wouldn’t refund me even though I called immediately to cancel it.

Ring in first class for an overnight flight, there was no blankets nor pillows for first class customers.

I didn't like that my paid for seat was changed 2 hours before my flight.

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Bigger seats. Board back to front! Disembark front to back!

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

Service in first class no longer exists on American Airlines .

My seat was very worn. Otherwise I had an excellent flight

Everything you need to know for your flight from Phoenix to Boise

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.