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Cheap flights from Phoenix Sky Harbor Intl Airport to Boise from $66

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to Boise departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Boise

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 11:51 am
PHX
-
BOI
5h 51m
1 stop
Frontier Logo
11:56 am - 9:41 pm
BOI
-
PHX
9h 45m
1 stop
$138Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
6:00 am - 11:51 am
PHX
-
BOI
5h 51m
1 stop
Frontier Logo
11:56 am - 9:41 pm
BOI
-
PHX
9h 45m
1 stop
$147Frontier
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
9:00 am - 11:10 am
PHX
-
BOI
2h 10mnonstop
Southwest Logo
3:00 pm - 5:05 pm
BOI
-
PHX
2h 05mnonstop
$157Southwest
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
6:00 am - 11:51 am
PHX
-
BOI
5h 51m
1 stop
Multiple Airlines Logo
7:15 am - 9:37 am
BOI
-
PHX
2h 22mnonstop
$163Multiple Airlines
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
6:00 am - 11:51 am
PHX
-
BOI
5h 51m
1 stop
Frontier Logo
11:56 am - 12:22 pm
BOI
-
PHX
24h 26m
2 stops
$165Frontier
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
9:15 am - 2:20 pm
PHX
-
BOI
5h 05m
1 stop
Southwest Logo
3:00 pm - 5:05 pm
BOI
-
PHX
2h 05mnonstop
$167Southwest
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
6:00 am - 11:51 am
PHX
-
BOI
5h 51m
1 stop
Multiple Airlines Logo
7:15 am - 9:37 am
BOI
-
PHX
2h 22mnonstop
$169Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
Southwest Logo
6:00 am - 10:40 am
PHX
-
BOI
4h 40m
1 stop
Southwest Logo
3:00 pm - 5:05 pm
BOI
-
PHX
2h 05mnonstop
$172Southwest
Wed, Feb 18 - Sat, Feb 21
Southwest Logo
1:35 pm - 3:45 pm
PHX
-
BOI
2h 10mnonstop
Southwest Logo
5:25 am - 7:40 am
BOI
-
PHX
2h 15mnonstop
$177Southwest
Thu, Feb 26 - Sun, Mar 1
Alaska Airlines Logo
4:12 pm - 11:30 pm
PHX
-
BOI
7h 18m
1 stop
Alaska Airlines Logo
12:57 pm - 3:08 pm
BOI
-
PHX
2h 11mnonstop
$178Alaska Airlines
Fri, Feb 20 - Mon, Feb 23

Frontier flights from Phoenix Sky Harbor Intl Airport to Boise

Our best Frontier deals on Phoenix Sky Harbor Intl Airport to Boise flight tickets
Frontier
Feb 26
PHX6:00 amPhoenix Sky Harbor Intl
5h 51m
1 stop
BOI11:51 amBoise Air Term. Gowen Fld
Mar 1
BOI11:56 amBoise Air Term. Gowen Fld
9h 45m
1 stop
PHX9:41 pmPhoenix Sky Harbor Intl
$138
Frontier
Feb 25
PHX6:51 pmPhoenix Sky Harbor Intl
17h 00m
1 stop
BOI11:51 amBoise Air Term. Gowen Fld
Mar 5
BOI12:38 pmBoise Air Term. Gowen Fld
12h 03m
1 stop
PHX12:41 amPhoenix Sky Harbor Intl
$143
Frontier
Feb 26
PHX6:00 amPhoenix Sky Harbor Intl
5h 51m
1 stop
BOI11:51 amBoise Air Term. Gowen Fld
Mar 1
BOI11:56 amBoise Air Term. Gowen Fld
9h 45m
1 stop
PHX9:41 pmPhoenix Sky Harbor Intl
$147

American Airlines flights from Phoenix Sky Harbor Intl Airport to Boise

Our best American Airlines deals on Phoenix Sky Harbor Intl Airport to Boise flight tickets
American Airlines
Feb 19
PHX3:44 pmPhoenix Sky Harbor Intl
2h 18m
BOI6:02 pmBoise Air Term. Gowen Fld
Feb 22
BOI6:38 amBoise Air Term. Gowen Fld
2h 26m
PHX9:04 amPhoenix Sky Harbor Intl
$200
American Airlines
Feb 13
PHX3:44 pmPhoenix Sky Harbor Intl
2h 18m
BOI6:02 pmBoise Air Term. Gowen Fld
Mar 4
BOI12:42 pmBoise Air Term. Gowen Fld
2h 22m
PHX3:04 pmPhoenix Sky Harbor Intl
$234
American Airlines
Feb 4
PHX2:43 pmPhoenix Sky Harbor Intl
2h 24m
BOI5:07 pmBoise Air Term. Gowen Fld
Mar 8
BOI6:38 amBoise Air Term. Gowen Fld
2h 26m
PHX8:04 amPhoenix Sky Harbor Intl
$254

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-11:51 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Sun 3/1

11:56 am-9:41 pm

1 stop9h 45m

$138

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-11:51 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Sun 3/1

11:56 am-9:41 pm

1 stop9h 45m

$147

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 2/25

9:00 am-11:10 am

Nonstop2h 10m

Boise Air Term. Gowen Fld

Wed 3/4

3:00 pm-5:05 pm

Nonstop2h 05m

$157

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-11:51 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Sun 3/1

7:15 am-9:37 am

Nonstop2h 22m

$163

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-11:51 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Sun 3/1

11:56 am-12:22 pm

2 stops24h 26m

$165

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 2/24

9:15 am-2:20 pm

1 stop5h 05m

Boise Air Term. Gowen Fld

Tue 3/3

3:00 pm-5:05 pm

Nonstop2h 05m

$167

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/12

6:00 am-11:51 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Mon 2/16

7:15 am-9:37 am

Nonstop2h 22m

$169

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 2/18

6:00 am-10:40 am

1 stop4h 40m

Boise Air Term. Gowen Fld

Sat 2/21

3:00 pm-5:05 pm

Nonstop2h 05m

$172

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/26

1:35 pm-3:45 pm

Nonstop2h 10m

Boise Air Term. Gowen Fld

Sun 3/1

5:25 am-7:40 am

Nonstop2h 15m

$177

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 2/20

4:12 pm-11:30 pm

1 stop7h 18m

Boise Air Term. Gowen Fld

Mon 2/23

12:57 pm-3:08 pm

Nonstop2h 11m

$178

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boise from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Boise

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boise?

The month of January is, on average, the cheapest month to fly to Boise from Phoenix Sky Harbor Intl Airport, with most prices found around $196. If you aren’t able to travel during the month of January, then book flights to Boise from Phoenix Sky Harbor Intl Airport during September instead. Flights to Boise in September, while not as cheap as those in January, still average around $197.

What is the cheapest day to depart on your flight to Boise?

Our data shows that Thursday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $235. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $317. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.

What is the cheapest time of day to depart on your flight to Boise?

Our data shows that the cheapest Phoenix Sky Harbor Intl Airport to Boise flights are usually those with departure times in the afternoon. Our users have found flights to Boise in the afternoon for as low as $190. At noon is when there is more demand to fly to Boise, so prices are often more expensive at around $283 per ticket.

What is the cheapest Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld flight route?

Fly from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld for the best Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld flight prices

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

You are more likely to see cheaper flights to Boise from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $245 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Phoenix Sky Harbor Intl Airport for as low as $182 on momondo.

What cabin class options are available on Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld flights?

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Phoenix Sky Harbor Intl Airport to Boise flights?

You could potentially save up to 18% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to Boise flight.

How have Phoenix Sky Harbor Intl Airport to Boise flight prices changed over time?

As of January 2026, prices for Phoenix Sky Harbor Intl Airport to Boise flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Phoenix Sky Harbor Intl Airport to Boise

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Boise according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Boise (PHX to BOI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to Boise

Best Price Found

$123

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Boise

1 airport
The best one-way flight to Boise from Phoenix Sky Harbor Intl Airport in the past 72 hours is $123. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Boise found on momondo in the last 72 hours is $177.
The fastest flight from Phoenix Sky Harbor Intl Airport to Boise takes 2h 00m
Direct flights go from Phoenix Sky Harbor Intl Airport to Boise every day.
There is 1 airport in Boise. From Phoenix Sky Harbor Intl Airport there are direct flights to Boise Air Term. Gowen Fld (BOI).
Search flight deals

  • How far is Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld by plane?

    Phoenix Sky Harbor Intl and Boise Air Term. Gowen Fld are 738.3 mi apart from one another. A reasonable flight in good conditions will take 2h 00m.

  • When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Boise Air Term. Gowen Fld Airport?

    Prices for flights from Phoenix Sky Harbor Intl Airport to Boise Air Term. Gowen Fld Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Boise Air Term. Gowen Fld Airport?

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Boise Air Term. Gowen Fld Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix Sky Harbor Intl Airport to Boise Air Term. Gowen Fld Airport.

  • What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?

    The necessary travel and health documents for your Boise Air Term. Gowen Fld Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Phoenix Sky Harbor Intl Airport to Boise?

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to Boise?

Best airlines flying from Phoenix Sky Harbor Intl Airport to Boise

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Boise with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $50Free CancellationRating
7.2
706 reviews
Search Allegiant Air flights
DeltaPriceFrom $81Free CancellationRating
7.9
8,124 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $136Free CancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $141Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $147Free CancellationRating
8.0
11,799 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $155Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights

  • Southwest Flights From Phoenix Sky Harbor Intl Airport to Boise

    The lowest priced Southwest flight from Phoenix Sky Harbor Intl Airport to Boise from the last 72 hours was $141. Generally, Southwest has 10 flights on this route every week with an average price of $245. Southwest is rated 8.0/10 by our users.

  • Alaska Airlines Flights From Phoenix Sky Harbor Intl Airport to Boise

    Alaska Airlines (8.0/10 from 11,799 reviews) operates around 6 flights from Phoenix Sky Harbor Intl Airport to Boise in any given week. The average Alaska Airlines airfare for this route is around $255, with deals from around $147 rare but found on momondo. Referenced prices are for round-trip Phoenix Sky Harbor Intl Airport to Boise flight searches in the last 72 hours.

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Nampa
Meridian
McCall
Caldwell
Ontario
Eagle

Why use momondo?

Why should I use momondo to find a flight deal from Phoenix to Boise?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Phoenix to Boise for you.

Can I find flights from Phoenix to Boise with flexible booking policies on momondo?

Yes. All flights to Boise from Phoenix on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Phoenix to Boise?

Once you have performed a search for Phoenix to Boise flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Phoenix to Boise right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Phoenix to Boise flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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