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Cheap flights from Boise to Phoenix from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Phoenix departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
12:44 pm - 12:44 amBOI-PHX
12h 00m1 stop
Multiple Airlines Logo
3:11 pm - 5:29 pmPHX-BOI
2h 18mnonstop
$162Multiple Airlines
Find Deal
Thu, Dec 11 - Thu, Jan 8
Southwest Logo
6:00 am - 8:15 amBOI-PHX
2h 15mnonstop
Southwest Logo
3:50 pm - 10:15 pmPHX-BOI
6h 25m1 stop
$163Southwest
Find Deal
Sun, Jan 11 - Fri, Jan 23
Frontier Logo
12:44 pm - 8:06 amBOI-PHX
19h 22m1 stop
Frontier Logo
7:43 pm - 11:49 amPHX-BOI
40h 06m2 stops
$166Frontier
Find Deal
Fri, Dec 5 - Wed, Dec 10
Alaska Airlines Logo
10:04 am - 5:56 pmBOI-PHX
7h 52m1 stop
Alaska Airlines Logo
2:35 pm - 4:50 pmPHX-BOI
2h 15mnonstop
$167Alaska Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Alaska Airlines Logo
6:09 pm - 8:15 pmBOI-PHX
2h 06mnonstop
Alaska Airlines Logo
8:57 pm - 11:09 pmPHX-BOI
2h 12mnonstop
$172Alaska Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Delta Logo
5:10 pm - 10:46 pmBOI-PHX
5h 36m1 stop
Delta Logo
12:05 pm - 8:12 pmPHX-BOI
8h 07m1 stop
$173Delta
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Thu, Jan 8 - Sun, Jan 11
Delta Logo
5:10 pm - 10:46 pmBOI-PHX
5h 36m1 stop
Delta Logo
2:50 pm - 8:12 pmPHX-BOI
5h 22m1 stop
$175Delta
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Wed, Jan 7 - Sun, Jan 11
Frontier Logo
12:44 pm - 8:48 amBOI-PHX
20h 04m2 stops
Frontier Logo
10:31 pm - 11:43 amPHX-BOI
13h 12m1 stop
$181Frontier
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Sun, Dec 14 - Sat, Dec 20
American Airlines Logo
2:48 pm - 5:02 pmBOI-PHX
2h 14mnonstop
American Airlines Logo
11:51 am - 2:08 pmPHX-BOI
2h 17mnonstop
$188American Airlines
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Fri, Feb 6 - Sun, Feb 8
American Airlines Logo
6:37 am - 9:05 amBOI-PHX
2h 28mnonstop
American Airlines Logo
8:20 am - 10:37 amPHX-BOI
2h 17mnonstop
$192American Airlines
Find Deal
Tue, Nov 18 - Sun, Nov 23

Frontier flights from Boise to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Boise to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Dec 5
BOI12:44 pmBoise Air Term. Gowen Fld
19h 22m
1 stop
PHX8:06 amPhoenix Sky Harbor Intl
Dec 10
PHX7:43 pmPhoenix Sky Harbor Intl
40h 06m
2 stops
BOI11:49 amBoise Air Term. Gowen Fld
$166
Find similar
Frontier
Dec 14
BOI12:44 pmBoise Air Term. Gowen Fld
20h 04m
2 stops
PHX8:48 amPhoenix Sky Harbor Intl
Dec 20
PHX10:31 pmPhoenix Sky Harbor Intl
13h 12m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$181
Find similar

Alaska Airlines flights from Boise to Phoenix Sky Harbor Intl Airport

Our best Alaska Airlines deals on Boise to Phoenix Sky Harbor Intl Airport flight tickets
Alaska Airlines
Nov 17
BOI10:04 amBoise Air Term. Gowen Fld
7h 52m
1 stop
PHX5:56 pmPhoenix Sky Harbor Intl
Nov 21
PHX2:35 pmPhoenix Sky Harbor Intl
2h 15m
BOI4:50 pmBoise Air Term. Gowen Fld
$167
Find similar
Alaska Airlines
Nov 11
BOI6:09 pmBoise Air Term. Gowen Fld
2h 06m
PHX8:15 pmPhoenix Sky Harbor Intl
Nov 18
PHX8:57 pmPhoenix Sky Harbor Intl
2h 12m
BOI11:09 pmBoise Air Term. Gowen Fld
$172
Find similar
Alaska Airlines
Jan 8
BOI4:04 pmBoise Air Term. Gowen Fld
7h 55m
1 stop
PHX11:59 pmPhoenix Sky Harbor Intl
Jan 14
PHX1:16 pmPhoenix Sky Harbor Intl
6h 09m
1 stop
BOI7:25 pmBoise Air Term. Gowen Fld
$174
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Phoenix Sky Harbor Intl Airport 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 October 27, 2025.
Use the filters below to find and compare flights from Boise to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 12/11

12:44 pm-12:44 am

1 stop12h 00m

Phoenix Sky Harbor Intl

Thu 1/8

3:11 pm-5:29 pm

Nonstop2h 18m

$162

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 1/11

6:00 am-8:15 am

Nonstop2h 15m

Phoenix Sky Harbor Intl

Fri 1/23

3:50 pm-10:15 pm

1 stop6h 25m

$163

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 12/5

12:44 pm-8:06 am

1 stop19h 22m

Phoenix Sky Harbor Intl

Wed 12/10

7:43 pm-11:49 am

2 stops40h 06m

$166

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 11/17

10:04 am-5:56 pm

1 stop7h 52m

Phoenix Sky Harbor Intl

Fri 11/21

2:35 pm-4:50 pm

Nonstop2h 15m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 11/11

6:09 pm-8:15 pm

Nonstop2h 06m

Phoenix Sky Harbor Intl

Tue 11/18

8:57 pm-11:09 pm

Nonstop2h 12m

$172

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 1/8

5:10 pm-10:46 pm

1 stop5h 36m

Phoenix Sky Harbor Intl

Sun 1/11

12:05 pm-8:12 pm

1 stop8h 07m

$173

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 1/7

5:10 pm-10:46 pm

1 stop5h 36m

Phoenix Sky Harbor Intl

Sun 1/11

2:50 pm-8:12 pm

1 stop5h 22m

$175

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 12/14

12:44 pm-8:48 am

2 stops20h 04m

Phoenix Sky Harbor Intl

Sat 12/20

10:31 pm-11:43 am

1 stop13h 12m

$181

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 2/6

2:48 pm-5:02 pm

Nonstop2h 14m

Phoenix Sky Harbor Intl

Sun 2/8

11:51 am-2:08 pm

Nonstop2h 17m

$188

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 11/18

6:37 am-9:05 am

Nonstop2h 28m

Phoenix Sky Harbor Intl

Sun 11/23

8:20 am-10:37 am

Nonstop2h 17m

$192

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boise to Phoenix Sky Harbor Intl Airport

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 Phoenix Sky Harbor Intl Airport?

In general, September is the cheapest month to fly from Boise to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $207. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Boise during the month August is also very affordable. Most momondo users find prices during this month for around $217.

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Boise is on a Thursday. momondo users have found tickets for Thursday departures for as low as $349. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $495. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

In the evening is the cheapest time of day to fly from Boise to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $133. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $418. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $284 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Boise for as low as $221 on momondo.

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

There are 4 cabin classes available to choose from on Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl 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 Boise to Phoenix Sky Harbor Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Boise to Phoenix Sky Harbor Intl Airport.

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

As of October 2025, prices for Boise to Phoenix Sky Harbor Intl Airport flights are approximately 51% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$128

Fastest flight time

2h 00m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Boise in the past 72 hours is $128. The best round-trip flight deal from Boise to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $284.
The fastest flight from Boise to Phoenix Sky Harbor Intl Airport takes 2h 00m
Direct flights go from Boise to Phoenix Sky Harbor Intl Airport every day.
Search flight deals

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

    A flight from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl will travel around 738.3 mi. 2h 00m is a normal flight duration for this route.

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

    Prices for flights from Boise Air Term. Gowen Fld Airport to Phoenix Sky Harbor Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Phoenix Sky Harbor Intl Airport.

  • What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

    The required travel and health documents for your Phoenix Sky Harbor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Boise to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Boise to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $98Free CancellationRating
7.8
2,792 reviews
Search Hawaiian Airlines flights
Spirit AirlinesPriceFrom $102Free CancellationRating
6.3
8,109 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $106Free CancellationRating
7.2
695 reviews
Search Allegiant Air flights
DeltaPriceFrom $108Free CancellationRating
7.9
7,994 reviews
Search Delta flights
Alaska AirlinesPriceFrom $157Free CancellationRating
8.0
11,194 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
American AirlinesPriceFrom $173Free CancellationRating
7.2
11,031 reviews
Search American Airlines flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights

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

    Alaska Airlines flight deals from Boise to Phoenix Sky Harbor Intl Airport start from $157 round-trip. Over the 13 Alaska Airlines flights for this route in a normal week, average airfare is usually $307 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Boise to Phoenix Sky Harbor Intl Airport

    $158 is the best Southwest flight deal from Boise to Phoenix Sky Harbor Intl Airport found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $283, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,238 user reviews) flies into Phoenix Sky Harbor Intl Airport from Boise 10 times in an average week so prices can vary.

Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Scottsdale
Mesa
Tempe
Glendale
Chandler
Gilbert
Peoria
Surprise
Casa Grande
Goodyear
Buckeye
Apache Junction
Payson
Wickenburg
Avondale
Paradise Valley
Camp Verde
Fountain Hills
Litchfield Park
Cave Creek

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Phoenix from Boise.

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

Flights from Boise to Phoenix with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Boise and Phoenix by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Phoenix, momondo offers a useful price alert feature which will track prices for flights to Phoenix from Boise and alert you when they change.

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