BOI

$54 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 2/2. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Boise.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Boise.
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Everything you should know

Cheapest round-trip
$157
Overall average: $246
American Airlines
Wed 1/7Sat 1/10
PHX - BOI • Non-stop
Cheapest one-way
$54
Allegiant Air
Mon 2/2
AZA - BOI • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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 $167 (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 • 20% average savings
PHX-BOI
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 53% compared to booking last minute.
Insights
Insights
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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

Wed, Jan 7 - Sat, Jan 10
American Airlines Logo
9:42 am - 12:07 pm
PHX
-
BOI
2h 25mnonstop
American Airlines Logo
12:37 pm - 2:55 pm
BOI
-
PHX
2h 18mnonstop
$157American Airlines
Thu, Jan 29 - Mon, Feb 2
Multiple Airlines Logo
3:11 pm - 5:29 pm
PHX
-
BOI
2h 18mnonstop
Multiple Airlines Logo
12:07 pm - 6:24 pm
BOI
-
PHX
6h 17m1 stop
$158Multiple Airlines
Thu, Jan 1 - Wed, Jan 7
Multiple Airlines Logo
7:00 am - 11:43 am
PHX
-
BOI
4h 43m1 stop
Multiple Airlines Logo
12:21 pm - 2:29 pm
BOI
-
PHX
2h 08mnonstop
$166Multiple Airlines
Tue, Feb 3 - Thu, Feb 5
American Airlines Logo
2:43 pm - 5:07 pm
PHX
-
BOI
2h 24mnonstop
American Airlines Logo
2:48 pm - 5:02 pm
BOI
-
PHX
2h 14mnonstop
$167American Airlines
Thu, Jan 1 - Sun, Jan 4
Frontier Logo
7:00 am - 11:43 am
PHX
-
BOI
4h 43m1 stop
Frontier Logo
12:38 pm - 12:29 am
BOI
-
PHX
11h 51m1 stop
$174Frontier
Thu, Jan 1 - Wed, Jan 7
Multiple Airlines Logo
7:00 am - 11:43 am
PHX
-
BOI
4h 43m1 stop
Multiple Airlines Logo
7:45 am - 2:00 pm
BOI
-
PHX
6h 15m1 stop
$175Multiple Airlines
Fri, Jan 2 - Sun, Jan 4
Frontier Logo
10:31 pm - 11:59 am
PHX
-
BOI
13h 28m1 stop
Frontier Logo
12:38 pm - 2:33 pm
BOI
-
PHX
25h 55m1 stop
$176Frontier
Fri, Jan 16 - Tue, Jan 20
Southwest Logo
8:50 am - 11:00 am
PHX
-
BOI
2h 10mnonstop
Southwest Logo
5:25 pm - 10:05 pm
BOI
-
PHX
4h 40m1 stop
$177Southwest
Fri, Jan 16 - Tue, Jan 20
Southwest Logo
8:50 am - 11:00 am
PHX
-
BOI
2h 10mnonstop
Southwest Logo
10:45 am - 7:55 pm
BOI
-
PHX
9h 10m2 stops
$182Southwest
Fri, Mar 13 - Mon, Mar 16
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
$187Allegiant Air
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 $103 on the route between Phoenix-Mesa Gateway Airport (AZA) and Boise (BOI). Over the past month, this route was, on average, 20% cheaper than other Phoenix-Boise routes. The most popular route is between Phoenix Sky Harbor Intl Airport (PHX) and Boise (BOI).

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 $368 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 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Phoenix to Boise

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

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

Good to know

Cheapest flight$54
Flight from Phoenix-Mesa Gateway 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 $54 for a one-way ticket and $157 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?

    SkyTeam, and oneworld are the airline alliances operating flights between Phoenix and Boise, with SkyTeam 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

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

Alaska Airlines, Allegiant Air, +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

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

Alaska Airlines, Allegiant Air, +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 11431 reviews
8.1Boarding
7.1Food
8.5Crew
7.0Entertainment
7.8Comfort
Airline reviews

Flight crew and flight were good. But it departed two hours late.

6.0 GoodAnonymous, Dec 2025
SFO - BOI
Read more Alaska Airlines reviews

Flight crew and flight were good. But it departed two hours late.

Good. Flight was good. Crew was good. Wish they offered coffee refills. Wish I didn’t have to pay for headphones. Otherwise good for a commercial flight.

Boarding was good. Alaska Airlines is good. On time good. clean. The little bag of peanuts was horrible.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

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.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

I always love flying Hawaii and I have nothing to add

Previously flown Hawaiian Airlines on similar routes, I found Alaska Airlines to be noticeably more comfortable. The seats on Alaska Airlines provided better support and cushioning, which made a significant difference on the long flight to the islands. When you’re spending 5-6 hours in the air, seat comfort really matters, and Alaska Airlines delivered where it counts. After comparing both carriers, I’ve decided to book with Alaska Airlines for all my future Hawaii trips. The superior seat comfort alone makes it worth choosing Alaska over Hawaiian Airlines. If you’re planning a trip to Hawaii and prioritizing comfort, I’d recommend giving Alaska Airlines a try. You won’t be disappointed. Highly recommended for Hawaii travel!

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Liked that it was on time. Staff professional and friendly.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

Loved the crew . Absolutely no complaints. Except for luggage lost

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We are too tired and frustrated to comment politely at this point

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.

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

Information on your arrival and departure airports