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Cheap flights from Idaho to Phoenix from $72

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 2/27. 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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0 bags

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Find the cheapest flights from Idaho to Phoenix

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:19 pm - 5:06 pm
GEG
-
PHX
2h 47mnonstop
Frontier Logo
3:55 pm - 11:08 am
PHX
-
GEG
20h 13m1 stop
$166Frontier
Thu, Jan 22 - Sat, Jan 24
American Airlines Logo
2:52 pm - 5:10 pm
BOI
-
PHX
2h 18mnonstop
American Airlines Logo
2:43 pm - 5:07 pm
PHX
-
BOI
2h 24mnonstop
$169American Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
8:58 pm - 8:20 am
GEG
-
PHX
10h 22m1 stop
Multiple Airlines Logo
4:21 pm - 8:08 pm
PHX
-
GEG
28h 47m1 stop
$169Multiple Airlines
Sun, Jan 18 - Wed, Jan 28
Southwest Logo
10:45 am - 7:55 pm
BOI
-
PHX
9h 10m2 stops
Southwest Logo
8:55 am - 11:05 am
PHX
-
BOI
2h 10mnonstop
$171Southwest
Sun, Jan 18 - Sat, Jan 24
Alaska Airlines Logo
7:15 am - 8:37 am
BOI
-
PHX
2h 22mnonstop
Alaska Airlines Logo
6:52 pm - 10:07 pm
PHX
-
BOI
2h 15mnonstop
$172Alaska Airlines
Wed, Mar 11 - Sun, Mar 15
Frontier Logo
7:16 pm - 11:03 pm
GEG
-
PHX
2h 47mnonstop
Frontier Logo
4:26 pm - 6:21 pm
PHX
-
GEG
2h 55mnonstop
$174Frontier
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
1:55 pm - 8:55 pm
BOI
-
PHX
7h 00m1 stop
Alaska Airlines Logo
7:00 am - 12:51 pm
PHX
-
BOI
5h 51m1 stop
$175Alaska Airlines
Tue, Jan 20 - Tue, Jan 27
Southwest Logo
10:45 am - 7:55 pm
BOI
-
PHX
9h 10m2 stops
Southwest Logo
3:45 pm - 8:15 pm
PHX
-
BOI
4h 30m1 stop
$181Southwest
Sun, Jan 18 - Sat, Jan 24
Delta Logo
2:15 pm - 9:31 pm
SUN
-
PHX
8h 16m1 stop
Delta Logo
6:15 am - 1:31 pm
PHX
-
SUN
6h 16m1 stop
$225Delta
Sun, Mar 15 - Sat, Mar 21
Delta Logo
3:55 pm - 11:15 pm
JAC
-
PHX
7h 20m1 stop
Delta Logo
6:00 am - 12:10 pm
PHX
-
JAC
5h 10m1 stop
$229Delta
Wed, Feb 11 - Wed, Mar 18

Frontier flights from Idaho to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Idaho to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Jan 22
GEG1:19 pmSpokane
2h 47m
PHX5:06 pmPhoenix Sky Harbor Intl
Jan 24
PHX3:55 pmPhoenix Sky Harbor Intl
20h 13m
1 stop
GEG11:08 amSpokane
$166
Find similar
Frontier
Jan 15
GEG7:16 pmSpokane
2h 47m
PHX11:03 pmPhoenix Sky Harbor Intl
Jan 18
PHX4:26 pmPhoenix Sky Harbor Intl
2h 55m
GEG6:21 pmSpokane
$174
Find similar
Frontier
Jan 15
GEG7:16 pmSpokane
2h 47m
PHX11:03 pmPhoenix Sky Harbor Intl
Jan 18
PHX4:26 pmPhoenix Sky Harbor Intl
2h 55m
GEG6:21 pmSpokane
$175
Find similar

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
Mar 11
BOI7:15 amBoise Air Term. Gowen Fld
2h 22m
PHX8:37 amPhoenix Sky Harbor Intl
Mar 15
PHX6:52 pmPhoenix Sky Harbor Intl
2h 15m
BOI10:07 pmBoise Air Term. Gowen Fld
$172
Find similar
Alaska Airlines
Jan 20
BOI1:55 pmBoise Air Term. Gowen Fld
7h 00m
1 stop
PHX8:55 pmPhoenix Sky Harbor Intl
Jan 27
PHX7:00 amPhoenix Sky Harbor Intl
5h 51m
1 stop
BOI12:51 pmBoise Air Term. Gowen Fld
$175
Find similar
Alaska Airlines
Jan 24
BOI11:35 amBoise Air Term. Gowen Fld
8h 13m
1 stop
PHX7:48 pmPhoenix Sky Harbor Intl
Jan 31
PHX7:00 amPhoenix Sky Harbor Intl
5h 51m
1 stop
BOI12:51 pmBoise Air Term. Gowen Fld
$176
Find similar

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 December 28, 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

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Thu 1/22

1:19 pm-5:06 pm

Nonstop2h 47m

Phoenix Sky Harbor Intl

Sat 1/24

3:55 pm-11:08 am

1 stop20h 13m

$166

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/20

2:52 pm-5:10 pm

Nonstop2h 18m

Phoenix Sky Harbor Intl

Tue 1/27

2:43 pm-5:07 pm

Nonstop2h 24m

$169

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Sun 1/18

8:58 pm-8:20 am

1 stop10h 22m

Phoenix Sky Harbor Intl

Wed 1/28

4:21 pm-8:08 pm

1 stop28h 47m

$169

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 1/18

10:45 am-7:55 pm

2 stops9h 10m

Phoenix Sky Harbor Intl

Sat 1/24

8:55 am-11:05 am

Nonstop2h 10m

$171

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 3/11

7:15 am-8:37 am

Nonstop2h 22m

Phoenix Sky Harbor Intl

Sun 3/15

6:52 pm-10:07 pm

Nonstop2h 15m

$172

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Thu 1/15

7:16 pm-11:03 pm

Nonstop2h 47m

Phoenix Sky Harbor Intl

Sun 1/18

4:26 pm-6:21 pm

Nonstop2h 55m

$174

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/20

1:55 pm-8:55 pm

1 stop7h 00m

Phoenix Sky Harbor Intl

Tue 1/27

7:00 am-12:51 pm

1 stop5h 51m

$175

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 1/18

10:45 am-7:55 pm

2 stops9h 10m

Phoenix Sky Harbor Intl

Sat 1/24

3:45 pm-8:15 pm

1 stop4h 30m

$181

HaileyPhoenix

SUN - PHX

SUNPHX

Hailey Sun Valley-Friedman

Sun 3/15

2:15 pm-9:31 pm

1 stop8h 16m

Phoenix Sky Harbor Intl

Sat 3/21

6:15 am-1:31 pm

1 stop6h 16m

$225

JacksonPhoenix

JAC - PHX

JACPHX

Jackson Hole

Wed 2/11

3:55 pm-11:15 pm

1 stop7h 20m

Phoenix Sky Harbor Intl

Wed 3/18

6:00 am-12:10 pm

1 stop5h 10m

$229

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, September 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 $207. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Idaho 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 Idaho is on a Thursday. momondo users have found tickets for Thursday departures for as low as $345. 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 $472. 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 $142. 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 $406. 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 $282 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 $233 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

$166

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 $166. The best round-trip flight deal from Idaho to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $244.
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.
Search flight deals

  • 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
Allegiant AirPriceFrom $82Free CancellationRating
7.2
703 reviews
Search Allegiant Air flights
Hawaiian AirlinesPriceFrom $98Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $108Free CancellationRating
7.9
8,019 reviews
Search Delta flights
Alaska AirlinesPriceFrom $157Free CancellationRating
8.0
11,551 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
American AirlinesPriceFrom $161Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
United AirlinesPriceFrom $196Free CancellationRating
7.4
9,113 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
Casa Grande
Surprise
Goodyear
Buckeye
Apache Junction
Payson
Avondale
Wickenburg
Paradise Valley
Camp Verde
Litchfield Park
Fountain Hills
Guadalupe

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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