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$59 Find Cheap Flights from Phoenix to Boise - Compare and Save

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Everything you should know

Cheapest round-trip
$88
Typical prices: $233-$389
Allegiant Air
Mon 1/15Thu 1/25
AZA - BOI • Non-stop
Cheapest one-way
$59
Typical prices: $137-$277
Allegiant Air
Tue 11/13
AZA - BOI • Non-stop
Nonstop flights
You can fly direct with American Airlines, Southwest and others. Average duration is 2h 14m.
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 9% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 9 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 42% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $248 (round-trip)
Shortest trip • 4h 35m (one-way)
Insights
Insights
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We hope you love your trip to Boise!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Phoenix to Boise

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Boise

Fri, Jan 15 - Mon, Jan 25
Allegiant Air Logo
4:08 pm - 6:28 pmAZA  Phoenix-Mesa Gateway-BOI Boise Air Term. Gowen Fld
2h 20mnonstop
Allegiant Air Logo
7:18 pm - 9:32 pmBOI  Boise Air Term. Gowen Fld-AZA Phoenix-Mesa Gateway
2h 14mnonstop
$88Allegiant Air
Thu, Oct 22 - Mon, Oct 26
Frontier Logo
8:16 am - 1:55 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
4h 39m1 stop Las Vegas Harry Reid Intl
Frontier Logo
2:50 pm - 5:26 pmBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
27h 36m1 stop Las Vegas Harry Reid Intl
$100Frontier
Fri, Nov 6 - Mon, Nov 9
Allegiant Air Logo
11:44 am - 1:53 pmAZA  Phoenix-Mesa Gateway-BOI Boise Air Term. Gowen Fld
2h 09mnonstop
Allegiant Air Logo
1:00 pm - 3:07 pmBOI  Boise Air Term. Gowen Fld-AZA Phoenix-Mesa Gateway
2h 07mnonstop
$110Allegiant Air
Thu, Oct 1 - Mon, Oct 5
Frontier Logo
8:27 am - 1:55 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
4h 28m1 stop Las Vegas Harry Reid Intl
Frontier Logo
2:50 pm - 11:59 amBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
22h 09m1 stop Las Vegas Harry Reid Intl
$170Frontier
Tue, Oct 20 - Thu, Oct 22
Multiple Airlines Logo
9:05 am - 12:18 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
2h 13mnonstop
Multiple Airlines Logo
2:50 pm - 6:33 pmBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
4h 43m1 stop Las Vegas Harry Reid Intl
$201Multiple Airlines
Thu, Oct 22 - Mon, Oct 26
Multiple Airlines Logo
8:16 am - 1:55 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
4h 39m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:30 pm - 3:46 pmBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
2h 16mnonstop
$210Multiple Airlines
Sat, Jan 30 - Sat, Feb 6
American Airlines Logo
3:51 pm - 6:09 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
2h 18mnonstop
American Airlines Logo
12:34 pm - 2:48 pmBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
2h 14mnonstop
$213American Airlines
Tue, Nov 3 - Tue, Nov 10
American Airlines Logo
11:07 am - 1:23 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
2h 16mnonstop
American Airlines Logo
6:06 am - 8:21 amBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
2h 15mnonstop
$213American Airlines
Sat, Oct 17 - Wed, Oct 21
Alaska Airlines Logo
9:05 am - 12:18 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
2h 13mnonstop
Alaska Airlines Logo
7:10 am - 8:21 amBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
2h 11mnonstop
$213Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
Alaska Airlines Logo
11:33 am - 7:53 pmPHX  Phoenix Sky Harbor Intl-BOI Boise Air Term. Gowen Fld
8h 20m1 stop San Diego
Alaska Airlines Logo
7:00 am - 9:11 amBOI  Boise Air Term. Gowen Fld-PHX Phoenix Sky Harbor Intl
2h 11mnonstop
$223Alaska Airlines
Booking Insights

Price, demand and travel trends for Phoenix to Boise flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Phoenix to Boise with more confidence.

How much is a round-trip flight from Phoenix to Boise?

Round-trip flights from Phoenix to Boise start at $88. Prices are below average for this route right now, with typical round-trip fares ranging from $233 to $389. The lowest price found in the past 5 days was $88 on Allegiant Air.

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

Tuesday is the cheapest day of the week to fly from Phoenix to Boise, it is 7% cheaper than the average day. Sunday is the most expensive day with flight prices 11% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Phoenix to Boise at $177 round-trip.
  • July ($355) and June ($350) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 100% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Phoenix to Boise the cheapest?

Flights from Phoenix to Boise are cheapest 9 weeks before departure. Booking in this window typically costs about 48% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Phoenix to Boise

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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.

Key details for Phoenix to Boise flights

Low season

February

Cheapest flight

$59
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Phoenix-Mesa Gateway 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

Your Phoenix to Boise flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on Phoenix to Boise flights?

    Among airlines operating Phoenix to Boise flights:

    • American Airlines: offers extra legroom; offers free seat selection
    • Alaska Airlines: offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Phoenix to Boise?

    4 airlines operate flights between Phoenix and Boise. The airlines offering nonstop flights on this route include:

    • American Airlines
    • Southwest
    • Alaska Airlines
    • Allegiant Air

  • Which airports can I use when flying from Phoenix to Boise?

    Flights from Phoenix to Boise may depart from several airports in Phoenix area, including Phoenix-Mesa Gateway (AZA), Phoenix Sky Harbor Intl (PHX) and Phoenix Scottsdale Municipal (SCF). Flights usually arrive at Boise Air Term. Gowen Fld (BOI).

  • Which airlines include bags at no extra cost on Phoenix to Boise flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class
    • Alaska Airlines: a cabin bag and a checked bag in First Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Phoenix to Boise?

    Two cabin classes are available on flights from Phoenix to Boise:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Phoenix to Boise?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $248 round-trip via Seattle/Tacoma Intl (SEA), compared to $303 for nonstop.

  • What is the standard checked-bag allowance on flights from Phoenix to Boise?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airports do connecting flights from Phoenix to Boise pass through?

    One-stop flights from Phoenix to Boise most commonly connect through:

    • Salt Lake City (SLC) - 46% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 25% of one-stop connections
    • Denver Intl (DEN) - 21% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 4% of one-stop connections

    Salt Lake City (SLC) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Phoenix to Boise?

    Yes. Being flexible with your travel dates can save you up to 16% on the Phoenix to Boise route. Tuesday is the cheapest departure day at $284 round-trip on average, while Sunday is the most expensive at $337, a difference of $53. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Phoenix to Boise spread across the day?

    Morning is the busiest departure period on Phoenix to Boise flights, with 34% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 22%, and night flights for 11%.

  • What popular places can I visit in Boise?

    Some of the most popular sights in Boise are Idaho Central Arena, Julia Davis Park and Discovery Center of Idaho. These are among the most viewed places in Boise on KAYAK.

  • What are the earliest and latest flights from Phoenix to Boise?

    These are the earliest and latest flight times available from Phoenix to Boise:

    • Earliest: departs at 7:45 am and lands at 9:59 am
    • Latest: departs at 11:25 pm and lands at 1:39 am.

    The flight takes about 2h 14m.

  • How expensive are last-minute Phoenix to Boise flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 52% above the route average of $303. Book 9 weeks before departure for the lowest fares.

  • How long is a flight from Phoenix to Boise?

    A nonstop flight from Phoenix to Boise takes 2h 14m, covering 733 miles.

  • Do I need a passport to fly from Phoenix to Boise?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Phoenix to Boise looking right now?

    One-way fares from Phoenix to Boise are currently lower than usual. Average one-way flight prices are about $90, which is 55% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Phoenix to Boise?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 4h 35m, compared with 5h 05m via San Francisco (SFO) and 5h 43m via Seattle/Tacoma Intl (SEA).

  • What is the time difference between Phoenix and Boise?

    Boise is 1 hour ahead of Phoenix (Mountain Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Boise Air Term. Gowen Fld Airport (BOI)?

    Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
    • Budget
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Avis

  • How much should I expect to pay for a Phoenix to Boise flight?

    Round-trip flights from Phoenix to Boise range from $233 to $389, with an average of $303 over the past 12 months. Anything below $233 counts as a good deal.

  • Which airlines offer Wi-Fi on Phoenix to Boise flights?

    Three airlines offer in-flight Wi-Fi on Phoenix to Boise flights:

    • • American Airlines
    • • Alaska Airlines
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Phoenix to Boise flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $284 - about $53 less than Sunday (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 9 weeks before you fly. On this route, that window historically saves about 48% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Phoenix to Boise trip for January. Fares historically average $177 round-trip in that month - typically $178 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Seattle/Tacoma Intl Airport (SEA) can be cheaper than flying direct. The cheapest layover option averages $248 round-trip on this route - about $54 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boise Air Term. Gowen Fld Airport.
    - Ramada by Wyndham Boise
    - Hotel 28 Boise Airport, an Ascend Collection Hotel
    - Super 8 by Wyndham Boise

Prefer to fly direct from Phoenix to Boise?

 
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

More options for your flight from Phoenix to Boise

Complete your trip to Boise with a hotel stay or car rental