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Cheap flights from Idaho Falls to Phoenix from $91

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 Falls to Phoenix departing on 2/23. 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 Idaho Falls to Phoenix

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:30 pm - 3:18 pm
IDA
-
PHX
17h 48m
1 stop
Multiple Airlines Logo
7:05 pm - 9:23 pm
PHX
-
IDA
25h 18m
2 stops
$241Multiple Airlines
Mon, Mar 9 - Thu, Mar 12
Multiple Airlines Logo
10:30 pm - 8:18 pm
IDA
-
PHX
22h 48m
1 stop
Multiple Airlines Logo
8:27 pm - 3:14 pm
PHX
-
IDA
17h 47m
1 stop
$250Multiple Airlines
Mon, Mar 9 - Thu, Mar 12
Alaska Airlines Logo
5:20 pm - 11:59 pm
IDA
-
PHX
6h 39m
1 stop
Alaska Airlines Logo
7:00 am - 4:43 pm
PHX
-
IDA
9h 43m
1 stop
$280Alaska Airlines
Fri, Feb 27 - Tue, Mar 3
Multiple Airlines Logo
10:31 pm - 1:55 pm
IDA
-
PHX
15h 24m
1 stop
Multiple Airlines Logo
10:20 am - 3:31 pm
PHX
-
IDA
5h 11m
1 stop
$282Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
American Airlines Logo
7:30 am - 8:47 am
IDA
-
PHX
2h 17mnonstop
American Airlines Logo
8:32 pm - 11:39 pm
PHX
-
IDA
2h 07mnonstop
$291American Airlines
Tue, Apr 21 - Tue, Apr 28
Alaska Airlines Logo
5:20 pm - 9:00 pm
IDA
-
PHX
27h 40m
1 stop
Alaska Airlines Logo
6:00 am - 4:43 pm
PHX
-
IDA
10h 43m
1 stop
$293Alaska Airlines
Fri, Feb 27 - Tue, Mar 3
Alaska Airlines Logo
8:00 am - 11:42 pm
IDA
-
PHX
15h 42m
2 stops
Alaska Airlines Logo
6:00 am - 4:43 pm
PHX
-
IDA
10h 43m
1 stop
$298Alaska Airlines
Wed, Feb 25 - Sat, Feb 28
United Airlines Logo
5:33 pm - 10:50 pm
IDA
-
PHX
5h 17m
1 stop
United Airlines Logo
8:25 am - 1:30 pm
PHX
-
IDA
5h 05m
1 stop
$307United Airlines
Wed, Feb 18 - Wed, Feb 25
Alaska Airlines Logo
5:20 pm - 9:00 pm
IDA
-
PHX
27h 40m
1 stop
Alaska Airlines Logo
4:27 pm - 4:43 pm
PHX
-
IDA
24h 16m
2 stops
$308Alaska Airlines
Fri, Feb 27 - Tue, Mar 3
Delta Logo
6:35 pm - 12:42 am
IDA
-
PHX
6h 07m
1 stop
Delta Logo
6:15 pm - 10:21 pm
PHX
-
IDA
4h 06m
1 stop
$311Delta
Wed, Feb 11 - Wed, Feb 18

American Airlines flights from Idaho Falls to Phoenix Sky Harbor Intl Airport

Our best American Airlines deals on Idaho Falls to Phoenix Sky Harbor Intl Airport flight tickets
American Airlines
Apr 21
IDA7:30 amIdaho Falls Fanning Field
2h 17m
PHX8:47 amPhoenix Sky Harbor Intl
Apr 28
PHX8:32 pmPhoenix Sky Harbor Intl
2h 07m
IDA11:39 pmIdaho Falls Fanning Field
$291
American Airlines
Feb 17
IDA6:03 amIdaho Falls Fanning Field
2h 27m
PHX8:30 amPhoenix Sky Harbor Intl
Feb 24
PHX9:13 pmPhoenix Sky Harbor Intl
2h 11m
IDA11:24 pmIdaho Falls Fanning Field
$341
American Airlines
Feb 27
IDA6:03 amIdaho Falls Fanning Field
2h 27m
PHX8:30 amPhoenix Sky Harbor Intl
Mar 3
PHX9:13 pmPhoenix Sky Harbor Intl
2h 11m
IDA11:24 pmIdaho Falls Fanning Field
$351

United Airlines flights from Idaho Falls to Phoenix Sky Harbor Intl Airport

Our best United Airlines deals on Idaho Falls to Phoenix Sky Harbor Intl Airport flight tickets
United Airlines
Feb 18
IDA5:33 pmIdaho Falls Fanning Field
5h 17m
1 stop
PHX10:50 pmPhoenix Sky Harbor Intl
Feb 25
PHX8:25 amPhoenix Sky Harbor Intl
5h 05m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
$307
United Airlines
Feb 23
IDA2:40 pmIdaho Falls Fanning Field
6h 41m
1 stop
PHX9:21 pmPhoenix Sky Harbor Intl
Feb 26
PHX8:25 amPhoenix Sky Harbor Intl
5h 05m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
$427
United Airlines
Jan 24
IDA4:19 pmIdaho Falls Fanning Field
5h 35m
1 stop
PHX9:54 pmPhoenix Sky Harbor Intl
Jan 28
PHX8:30 amPhoenix Sky Harbor Intl
7h 01m
1 stop
IDA3:31 pmIdaho Falls Fanning Field
$436

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 January 23, 2026.
Use the filters below to find and compare flights from Idaho Falls to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 3/9

10:30 pm-3:18 pm

1 stop17h 48m

Phoenix Sky Harbor Intl

Thu 3/12

7:05 pm-9:23 pm

2 stops25h 18m

$241

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 3/9

10:30 pm-8:18 pm

1 stop22h 48m

Phoenix Sky Harbor Intl

Thu 3/12

8:27 pm-3:14 pm

1 stop17h 47m

$250

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-11:59 pm

1 stop6h 39m

Phoenix Sky Harbor Intl

Tue 3/3

7:00 am-4:43 pm

1 stop9h 43m

$280

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 2/20

10:31 pm-1:55 pm

1 stop15h 24m

Phoenix Sky Harbor Intl

Mon 2/23

10:20 am-3:31 pm

1 stop5h 11m

$282

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 4/21

7:30 am-8:47 am

Nonstop2h 17m

Phoenix Sky Harbor Intl

Tue 4/28

8:32 pm-11:39 pm

Nonstop2h 07m

$291

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-9:00 pm

1 stop27h 40m

Phoenix Sky Harbor Intl

Tue 3/3

6:00 am-4:43 pm

1 stop10h 43m

$293

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 2/25

8:00 am-11:42 pm

2 stops15h 42m

Phoenix Sky Harbor Intl

Sat 2/28

6:00 am-4:43 pm

1 stop10h 43m

$298

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 2/18

5:33 pm-10:50 pm

1 stop5h 17m

Phoenix Sky Harbor Intl

Wed 2/25

8:25 am-1:30 pm

1 stop5h 05m

$307

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-9:00 pm

1 stop27h 40m

Phoenix Sky Harbor Intl

Tue 3/3

4:27 pm-4:43 pm

2 stops24h 16m

$308

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 2/11

6:35 pm-12:42 am

1 stop6h 07m

Phoenix Sky Harbor Intl

Wed 2/18

6:15 pm-10:21 pm

1 stop4h 06m

$311

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 Falls 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 Falls to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $215. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Idaho Falls during the month August is also very affordable. Most momondo users find prices during this month for around $324.

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 Falls is on a Saturday. momondo users have found tickets for Saturday departures for as low as $494. 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 Monday because tickets tend to average around $646. 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 afternoon is the cheapest time of day to fly from Idaho Falls to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $174. Flying to Phoenix Sky Harbor Intl Airport in the afternoon 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 $526. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Idaho Falls Fanning Field to Phoenix Sky Harbor Intl for the best Idaho Falls Fanning Field - Phoenix Sky Harbor Intl flight prices

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

There are 2 cabin classes available to choose from on Idaho Falls Fanning Field 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 Falls to Phoenix Sky Harbor Intl Airport flights?

You could potentially save up to 30% on your flight if you consider stops on a Idaho Falls to Phoenix Sky Harbor Intl Airport flight.

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

As of January 2026, prices for Idaho Falls to Phoenix Sky Harbor Intl Airport flights are approximately 108% more expensive when compared to flights at the same time last year.

When to book flights from Idaho Falls to Phoenix Sky Harbor Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls 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 Idaho Falls to Phoenix Sky Harbor Intl Airport (IDA to PHX) flight deals and tips

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

Best Price Found

$270

Fastest flight time

2h 26m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun
The best one-way flight to Phoenix Sky Harbor Intl Airport from Idaho Falls in the past 72 hours is $270. The best round-trip flight deal from Idaho Falls to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $421.
The fastest flight from Idaho Falls to Phoenix Sky Harbor Intl Airport takes 2h 26m
Direct flights go from Idaho Falls to Phoenix Sky Harbor Intl Airport on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

  • How far is Idaho Falls Fanning Field to Phoenix Sky Harbor Intl by plane?

    A flight from Idaho Falls Fanning Field to Phoenix Sky Harbor Intl will travel around 692.6 mi. By plane, this route typically takes 2h 26m.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Phoenix Sky Harbor Intl Airport are updated daily.

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

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

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

    The travel and health documents required for your trip to Phoenix Sky Harbor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Phoenix Sky Harbor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Idaho Falls to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Idaho Falls to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $110Free CancellationRating
7.2
705 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $280Free CancellationRating
7.4
9,195 reviews
Search United Airlines flights
American AirlinesPriceFrom $291Free CancellationRating
7.2
11,177 reviews
Search American Airlines flights
DeltaPriceFrom $300Free CancellationRating
7.9
8,094 reviews
Search Delta flights

  • American Airlines Flights From Idaho Falls to Phoenix Sky Harbor Intl Airport

    American Airlines flies from Idaho Falls to Phoenix Sky Harbor Intl Airport around 7 times per week, with 11,176 momondo users rating the airline 7.2/10. The cheapest American Airlines deal from Idaho Falls to Phoenix Sky Harbor Intl Airport in the last 72 hours was $291 (round-trip), much lower than the average airfare cost of $432 for American Airlines flights on this route.

Traveling to a place near Phoenix?

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

Why use momondo?

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

It is quick and easy to find Idaho Falls to Phoenix flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Phoenix that suits you.

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

Yes. momondo enables you to select and highlight flights to Phoenix from Idaho Falls with this policy.

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

Once all potential Idaho Falls to Phoenix flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Phoenix from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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