Cheap flights from Idaho to Phoenix from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Phoenix departing on 11/4. 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

Alaska Airlines Logo
7:35 am - 9:49 amBOI-PHX
2h 14mnonstop
Alaska Airlines Logo
6:50 pm - 11:49 pmPHX-BOI
4h 59m1 stop
$157Alaska Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Southwest Logo
12:55 pm - 3:00 pmBOI-PHX
2h 05mnonstop
Southwest Logo
3:50 pm - 10:15 pmPHX-BOI
6h 25m2 stops
$162Southwest
Find Deal
Thu, Dec 4 - Tue, Dec 9
Southwest Logo
5:55 pm - 9:55 pmBOI-PHX
5h 00m1 stop
Southwest Logo
5:50 am - 12:00 pmPHX-BOI
5h 10m1 stop
$166Southwest
Find Deal
Wed, Oct 22 - Mon, Oct 27
American Airlines Logo
6:40 am - 7:56 amBOI-PHX
2h 16mnonstop
American Airlines Logo
8:20 pm - 11:32 pmPHX-BOI
2h 12mnonstop
$170American Airlines
Find Deal
Mon, Oct 20 - Mon, Oct 27
Delta Logo
11:12 am - 4:10 pmBOI-PHX
5h 58m1 stop
Delta Logo
5:00 am - 9:17 amPHX-BOI
4h 17m1 stop
$177Delta
Find Deal
Thu, Oct 30 - Sun, Nov 2
American Airlines Logo
2:16 pm - 4:40 pmBOI-PHX
2h 24mnonstop
American Airlines Logo
1:35 pm - 4:48 pmPHX-BOI
2h 13mnonstop
$178American Airlines
Find Deal
Sat, Nov 15 - Sat, Apr 18
Hawaiian Airlines Logo
6:16 pm - 7:31 pmBOI-PHX
2h 15mnonstop
Hawaiian Airlines Logo
9:31 am - 12:54 pmPHX-BOI
2h 23mnonstop
$185Hawaiian Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
Delta Logo
5:58 pm - 11:40 pmBOI-PHX
5h 42m1 stop
Delta Logo
8:05 pm - 12:43 amPHX-BOI
4h 38m1 stop
$188Delta
Find Deal
Sat, Nov 22 - Tue, Dec 2
Frontier Logo
4:35 pm - 8:14 pmGEG-PHX
2h 39mnonstop
Frontier Logo
1:52 pm - 3:40 pmPHX-GEG
2h 48mnonstop
$189Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
12:28 pm - 8:19 pmBOI-PHX
8h 51m1 stop
Frontier Logo
9:00 am - 11:43 amPHX-BOI
25h 43m2 stops
$233Frontier
Find Deal
Fri, Oct 17 - Sat, Oct 18

Southwest flights from Idaho to Phoenix Sky Harbor Intl Airport

Our best Southwest deals on Idaho to Phoenix Sky Harbor Intl Airport flight tickets
Southwest
Dec 4
BOI12:55 pmBoise Air Term. Gowen Fld
2h 05m
PHX3:00 pmPhoenix Sky Harbor Intl
Dec 9
PHX3:50 pmPhoenix Sky Harbor Intl
6h 25m
2 stops
BOI10:15 pmBoise Air Term. Gowen Fld
Southwest
Oct 22
BOI5:55 pmBoise Air Term. Gowen Fld
5h 00m
1 stop
PHX9:55 pmPhoenix Sky Harbor Intl
Oct 27
PHX5:50 amPhoenix Sky Harbor Intl
5h 10m
1 stop
BOI12:00 pmBoise Air Term. Gowen Fld
Southwest
Dec 4
BOI12:55 pmBoise Air Term. Gowen Fld
2h 05m
PHX3:00 pmPhoenix Sky Harbor Intl
Dec 8
PHX12:50 pmPhoenix Sky Harbor Intl
7h 50m
2 stops
BOI8:40 pmBoise Air Term. Gowen Fld

Alaska Airlines flights from Idaho to Phoenix Sky Harbor Intl Airport

Our best Alaska Airlines deals on Idaho to Phoenix Sky Harbor Intl Airport flight tickets
Alaska Airlines
Nov 12
BOI7:35 amBoise Air Term. Gowen Fld
2h 14m
PHX9:49 amPhoenix Sky Harbor Intl
Nov 15
PHX6:50 pmPhoenix Sky Harbor Intl
4h 59m
1 stop
BOI11:49 pmBoise Air Term. Gowen Fld
Alaska Airlines
Nov 16
BOI7:35 amBoise Air Term. Gowen Fld
2h 14m
PHX9:49 amPhoenix Sky Harbor Intl
Nov 17
PHX6:50 pmPhoenix Sky Harbor Intl
4h 59m
1 stop
BOI11:49 pmBoise Air Term. Gowen Fld
Alaska Airlines
Oct 22
GEG7:00 amSpokane
8h 17m
1 stop
PHX3:17 pmPhoenix Sky Harbor Intl
Oct 27
PHX3:15 pmPhoenix Sky Harbor Intl
8h 41m
1 stop
GEG11:56 pmSpokane

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 September 23, 2025.
Use the filters below to find and compare flights from Idaho 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

Wed 11/12

7:35 am-9:49 am

Nonstop2h 14m

Phoenix Sky Harbor Intl

Sat 11/15

6:50 pm-11:49 pm

1 stop4h 59m

$157

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 12/4

12:55 pm-3:00 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Tue 12/9

3:50 pm-10:15 pm

2 stops6h 25m

$162

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 10/22

5:55 pm-9:55 pm

1 stop5h 00m

Phoenix Sky Harbor Intl

Mon 10/27

5:50 am-12:00 pm

1 stop5h 10m

$166

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 10/20

6:40 am-7:56 am

Nonstop2h 16m

Phoenix Sky Harbor Intl

Mon 10/27

8:20 pm-11:32 pm

Nonstop2h 12m

$170

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 10/30

11:12 am-4:10 pm

1 stop5h 58m

Phoenix Sky Harbor Intl

Sun 11/2

5:00 am-9:17 am

1 stop4h 17m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 11/15

2:16 pm-4:40 pm

Nonstop2h 24m

Phoenix Sky Harbor Intl

Sat 4/18

1:35 pm-4:48 pm

Nonstop2h 13m

$178

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 10/24

6:16 pm-7:31 pm

Nonstop2h 15m

Phoenix Sky Harbor Intl

Mon 10/27

9:31 am-12:54 pm

Nonstop2h 23m

$185

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 11/22

5:58 pm-11:40 pm

1 stop5h 42m

Phoenix Sky Harbor Intl

Tue 12/2

8:05 pm-12:43 am

1 stop4h 38m

$188

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Thu 12/11

4:35 pm-8:14 pm

Nonstop2h 39m

Phoenix Sky Harbor Intl

Sun 12/14

1:52 pm-3:40 pm

Nonstop2h 48m

$189

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 10/17

12:28 pm-8:19 pm

1 stop8h 51m

Phoenix Sky Harbor Intl

Sat 10/18

9:00 am-11:43 am

2 stops25h 43m

$233

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 Idaho 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, August is the cheapest month to fly from Idaho to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $217. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of August, then departing from Idaho during the month July is also very affordable. Most momondo users find prices during this month for around $227.

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 Idaho is on a Thursday. momondo users have found tickets for Thursday departures for as low as $348. 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 $497. 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 Idaho to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $138. 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 $422. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Idaho to Phoenix Sky Harbor Intl flight route?

Fly from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl for the best Idaho - 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 Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $286 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 Idaho for as low as $223 on momondo.

What cabin class options are available on Idaho to Phoenix Sky Harbor Intl flights?

There are 4 cabin classes available to choose from on Idaho 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 Idaho to Phoenix Sky Harbor Intl Airport flights?

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

Cheap Idaho to Phoenix Sky Harbor Intl Airport flight deals and tips

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

Best Price Found

$143

Fastest flight time

2h 00m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Idaho in the past 72 hours is $143. The best round-trip flight deal from Idaho to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $249.
The fastest flight from Idaho to Phoenix Sky Harbor Intl Airport takes 2h 00m
Direct flights go from Idaho to Phoenix Sky Harbor Intl Airport every day.
  • When did momondo last update prices for flights from Idaho to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Idaho to Phoenix Sky Harbor Intl Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Phoenix Sky Harbor Intl Airport?

  • How old do you have to be to fly from Idaho 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 Idaho to Phoenix Sky Harbor Intl Airport.

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

    The necessary travel and health documents for your Phoenix Sky Harbor Intl 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 Idaho to Phoenix Sky Harbor Intl Airport?

Best airlines flying from Idaho to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Idaho to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $98Free CancellationRating
7.8
2,743 reviews
Search Hawaiian Airlines flights
Spirit AirlinesPriceFrom $102Free CancellationRating
6.3
8,031 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $106Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
DeltaPriceFrom $108Free CancellationRating
7.9
7,974 reviews
Search Delta flights
Alaska AirlinesPriceFrom $158Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
American AirlinesPriceFrom $165Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

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
Buckeye
Goodyear
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 Idaho to Phoenix?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Phoenix. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between Idaho 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 Idaho to Phoenix right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Phoenix from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Thu 10/23
Thu 10/30

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