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Cheap flights from Idaho Falls to Phoenix from $128

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 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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0 bags

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Find the cheapest flights from Idaho Falls to Phoenix

Cheap round-trip flights

Alaska Airlines Logo
3:57 pm - 9:00 pmIDA-PHX
6h 03m1 stop
Alaska Airlines Logo
8:04 am - 3:20 pmPHX-IDA
6h 16m1 stop
$275Alaska Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
6:51 pm - 10:13 amIDA-PHX
16h 22m2 stops
Delta Logo
5:20 pm - 10:25 pmPHX-IDA
4h 05m1 stop
$279Delta
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
6:51 pm - 11:36 pmIDA-PHX
5h 45m1 stop
Delta Logo
5:20 pm - 10:25 pmPHX-IDA
4h 05m1 stop
$283Delta
Find Deal
Mon, Sep 15 - Wed, Sep 17
Delta Logo
6:51 pm - 10:13 amIDA-PHX
16h 22m2 stops
Delta Logo
1:50 pm - 10:25 pmPHX-IDA
7h 35m2 stops
$284Delta
Find Deal
Tue, Sep 16 - Tue, Sep 23
Hawaiian Airlines Logo
3:50 pm - 9:39 pmIDA-PHX
5h 49m1 stop
Hawaiian Airlines Logo
6:20 am - 3:13 pmPHX-IDA
8h 53m1 stop
$290Hawaiian Airlines
Find Deal
Mon, Nov 17 - Thu, Nov 20
Alaska Airlines Logo
6:13 am - 11:55 pmIDA-PHX
18h 42m1 stop
Alaska Airlines Logo
7:00 am - 3:38 pmPHX-IDA
7h 38m1 stop
$293Alaska Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4
American Airlines Logo
7:15 am - 9:35 amIDA-PHX
2h 20mnonstop
American Airlines Logo
8:28 pm - 10:34 pmPHX-IDA
2h 06mnonstop
$351American Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
United Airlines Logo
4:15 pm - 8:17 pmIDA-PHX
5h 02m1 stop
United Airlines Logo
1:35 pm - 8:54 pmPHX-IDA
6h 19m1 stop
$355United Airlines
Find Deal
Wed, Aug 20 - Wed, Sep 3
American Airlines Logo
5:33 am - 7:50 amIDA-PHX
2h 17mnonstop
American Airlines Logo
7:50 pm - 10:03 pmPHX-IDA
2h 13mnonstop
$356American Airlines
Find Deal
Wed, Dec 17 - Tue, Jan 6
United Airlines Logo
5:56 pm - 10:01 pmIDA-PHX
5h 05m1 stop
United Airlines Logo
4:28 pm - 10:48 pmPHX-IDA
5h 20m1 stop
$361United Airlines
Find Deal
Mon, Sep 15 - Fri, Sep 19

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
Nov 6
IDA7:15 amIdaho Falls Fanning Field
2h 20m
PHX9:35 amPhoenix Sky Harbor Intl
Nov 9
PHX8:28 pmPhoenix Sky Harbor Intl
2h 06m
IDA10:34 pmIdaho Falls Fanning Field
$351
Find similar
American Airlines
Dec 17
IDA5:33 amIdaho Falls Fanning Field
2h 17m
PHX7:50 amPhoenix Sky Harbor Intl
Jan 6
PHX7:50 pmPhoenix Sky Harbor Intl
2h 13m
IDA10:03 pmIdaho Falls Fanning Field
$356
Find similar
American Airlines
Aug 27
IDA1:32 pmIdaho Falls Fanning Field
7h 49m
1 stop
PHX8:21 pmPhoenix Sky Harbor Intl
Aug 28
PHX11:50 amPhoenix Sky Harbor Intl
8h 29m
1 stop
IDA9:19 pmIdaho Falls Fanning Field
$376
Find similar

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

Our best Alaska Airlines deals on Idaho Falls to Phoenix Sky Harbor Intl Airport flight tickets
Alaska Airlines
Sep 16
IDA3:57 pmIdaho Falls Fanning Field
6h 03m
1 stop
PHX9:00 pmPhoenix Sky Harbor Intl
Sep 23
PHX8:04 amPhoenix Sky Harbor Intl
6h 16m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
$275
Find similar
Alaska Airlines
Oct 1
IDA6:13 amIdaho Falls Fanning Field
18h 42m
1 stop
PHX11:55 pmPhoenix Sky Harbor Intl
Oct 4
PHX7:00 amPhoenix Sky Harbor Intl
7h 38m
1 stop
IDA3:38 pmIdaho Falls Fanning Field
$293
Find similar
Alaska Airlines
Sep 17
IDA6:13 amIdaho Falls Fanning Field
7h 41m
1 stop
PHX12:54 pmPhoenix Sky Harbor Intl
Sep 23
PHX6:00 amPhoenix Sky Harbor Intl
8h 20m
2 stops
IDA3:20 pmIdaho Falls Fanning Field
$296
Find similar

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 August 6, 2025.
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

Tue 9/16

3:57 pm-9:00 pm

1 stop6h 03m

Phoenix Sky Harbor Intl

Tue 9/23

8:04 am-3:20 pm

1 stop6h 16m

$275

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/16

6:51 pm-10:13 am

2 stops16h 22m

Phoenix Sky Harbor Intl

Tue 9/23

5:20 pm-10:25 pm

1 stop4h 05m

$279

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 9/15

6:51 pm-11:36 pm

1 stop5h 45m

Phoenix Sky Harbor Intl

Wed 9/17

5:20 pm-10:25 pm

1 stop4h 05m

$283

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/16

6:51 pm-10:13 am

2 stops16h 22m

Phoenix Sky Harbor Intl

Tue 9/23

1:50 pm-10:25 pm

2 stops7h 35m

$284

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 11/17

3:50 pm-9:39 pm

1 stop5h 49m

Phoenix Sky Harbor Intl

Thu 11/20

6:20 am-3:13 pm

1 stop8h 53m

$290

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 10/1

6:13 am-11:55 pm

1 stop18h 42m

Phoenix Sky Harbor Intl

Sat 10/4

7:00 am-3:38 pm

1 stop7h 38m

$293

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 11/6

7:15 am-9:35 am

Nonstop2h 20m

Phoenix Sky Harbor Intl

Sun 11/9

8:28 pm-10:34 pm

Nonstop2h 06m

$351

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 8/20

4:15 pm-8:17 pm

1 stop5h 02m

Phoenix Sky Harbor Intl

Wed 9/3

1:35 pm-8:54 pm

1 stop6h 19m

$355

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 12/17

5:33 am-7:50 am

Nonstop2h 17m

Phoenix Sky Harbor Intl

Tue 1/6

7:50 pm-10:03 pm

Nonstop2h 13m

$356

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 9/15

5:56 pm-10:01 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Fri 9/19

4:28 pm-10:48 pm

1 stop5h 20m

$361

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 typical price of a round-trip flight between Idaho Falls and Phoenix Sky Harbor Intl Airport?

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 $166. 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 $306.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $575. 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 $179. 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 $578. 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

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 Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $418 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 Falls for as low as $316 on momondo.

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 54% 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 August 2025, prices for Idaho Falls to Phoenix Sky Harbor Intl Airport flights are approximately 113% 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

$128

Fastest flight time

2h 15m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Idaho Falls in the past 72 hours is $128. The best round-trip flight deal from Idaho Falls to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $275.
The fastest flight from Idaho Falls to Phoenix Sky Harbor Intl Airport takes 2h 15m
Direct flights go from Idaho Falls to Phoenix Sky Harbor Intl Airport every day.
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 17m.

  • 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
702 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $293Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $300Free CancellationRating
8.0
7,985 reviews
Search Delta flights
American AirlinesPriceFrom $311Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $405Free CancellationRating
7.4
8,917 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
Wickenburg
Apache Junction
Goodyear
Payson
Paradise Valley
Avondale
Camp Verde
Fountain Hills
Cave Creek
Litchfield Park

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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