What is the cheapest airline that flies from Idaho Falls Fanning Field to Phoenix Sky Harbor Intl?

Alaska Airlines is the most popular carrier operating from Idaho Falls Fanning Field to Phoenix Sky Harbor Intl

What airlines fly to Phoenix Sky Harbor Intl Airport?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Idaho Falls according to our data. American Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 4 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Idaho Falls Fanning Field Airport to Phoenix Sky Harbor Intl Airport is 4 as of August 2026.

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.

$77 Cheap Flights from Idaho Falls to Phoenix Sky Harbor Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho Falls to Phoenix

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:33 pm - 12:59 pm

IDA

PHX

17h 26m

1 stop

10:40 pm - 4:00 pm

PHX

IDA

16h 20m

1 stop

$182Multiple Airlines

Mon, Aug 31 - Thu, Oct 8

8:33 pm - 10:11 am

IDA

PHX

14h 38m

2 stops

10:40 pm - 4:00 pm

PHX

IDA

16h 20m

1 stop

$232Multiple Airlines

Mon, Aug 31 - Thu, Oct 8

8:33 pm - 12:59 pm

IDA

PHX

17h 26m

1 stop

5:00 pm - 2:39 pm

PHX

IDA

20h 39m

2 stops

$248Multiple Airlines

Mon, Aug 31 - Sun, Oct 11

7:15 am - 9:35 am

IDA

PHX

2h 20mnonstop

8:28 pm - 10:36 pm

PHX

IDA

2h 08mnonstop

$433American Airlines

Fri, Dec 11 - Tue, Dec 15

6:00 am - 11:59 pm

IDA

PHX

17h 59m

2 stops

7:35 am - 6:16 pm

PHX

IDA

10h 41m

2 stops

$440Delta

Mon, Nov 23 - Wed, Dec 2

6:00 am - 4:40 pm

IDA

PHX

10h 40m

2 stops

7:35 am - 6:16 pm

PHX

IDA

10h 41m

2 stops

$445Delta

Thu, Nov 26 - Wed, Dec 2

7:00 am - 10:37 am

IDA

PHX

4h 37m

1 stop

9:23 am - 5:16 pm

PHX

IDA

6h 53m

1 stop

$449United Airlines

Wed, Sep 2 - Sun, Sep 13

4:05 pm - 8:49 pm

IDA

PHX

5h 44m

1 stop

9:10 am - 5:16 pm

PHX

IDA

7h 06m

1 stop

$449United Airlines

Sun, Oct 18 - Sat, Oct 24

6:45 am - 9:13 am

IDA

PHX

2h 28mnonstop

8:16 pm - 10:25 pm

PHX

IDA

2h 09mnonstop

$481American Airlines

Fri, Nov 13 - Mon, Nov 16

7:15 am - 9:35 am

IDA

PHX

2h 20mnonstop

6:25 am - 1:27 pm

PHX

IDA

7h 02m

1 stop

$519American Airlines

Fri, Dec 11 - Tue, Dec 15

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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

Oct 27

IDA6:09 amIdaho Falls Fanning Field

13h 33m

2 stops

PHX6:42 pmPhoenix Sky Harbor Intl

Oct 31

PHX10:12 amPhoenix Sky Harbor Intl

11h 47m

2 stops

IDA10:59 pmIdaho Falls Fanning Field

$358

Alaska Airlines

Sep 2

IDA2:01 pmIdaho Falls Fanning Field

9h 28m

2 stops

PHX10:29 pmPhoenix Sky Harbor Intl

Oct 7

PHX10:12 amPhoenix Sky Harbor Intl

11h 47m

2 stops

IDA10:59 pmIdaho Falls Fanning Field

$359

Alaska Airlines

Oct 27

IDA1:58 pmIdaho Falls Fanning Field

6h 53m

1 stop

PHX7:51 pmPhoenix Sky Harbor Intl

Oct 31

PHX10:12 amPhoenix Sky Harbor Intl

11h 47m

2 stops

IDA10:59 pmIdaho Falls Fanning Field

$381

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

Aug 5

IDA10:35 amIdaho Falls Fanning Field

7h 00m

1 stop

PHX4:35 pmPhoenix Sky Harbor Intl

Aug 8

PHX1:31 pmPhoenix Sky Harbor Intl

6h 36m

1 stop

IDA9:07 pmIdaho Falls Fanning Field

$493

United Airlines

Aug 3

IDA5:54 pmIdaho Falls Fanning Field

5h 05m

1 stop

PHX9:59 pmPhoenix Sky Harbor Intl

Aug 8

PHX1:31 pmPhoenix Sky Harbor Intl

6h 36m

1 stop

IDA9:07 pmIdaho Falls Fanning Field

$560

United Airlines

Aug 3

IDA4:14 pmIdaho Falls Fanning Field

5h 18m

1 stop

PHX8:32 pmPhoenix Sky Harbor Intl

Aug 9

PHX6:00 amPhoenix Sky Harbor Intl

6h 25m

1 stop

IDA1:25 pmIdaho Falls Fanning Field

$567

momondo Fare Finder

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

Cheapest round-trip

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 8/31

8:33 pm-12:59 pm

1 stop17h 26m

Phoenix Sky Harbor Intl

Thu 10/8

10:40 pm-4:00 pm

1 stop16h 20m

$182

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 8/31

8:33 pm-10:11 am

2 stops14h 38m

Phoenix Sky Harbor Intl

Thu 10/8

10:40 pm-4:00 pm

1 stop16h 20m

$232

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 8/31

8:33 pm-12:59 pm

1 stop17h 26m

Phoenix Sky Harbor Intl

Sun 10/11

5:00 pm-2:39 pm

2 stops20h 39m

$248

Quickest round-trip

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 12/11

7:15 am-9:35 am

Nonstop2h 20m

Phoenix Sky Harbor Intl

Tue 12/15

8:28 pm-10:36 pm

Nonstop2h 08m

$433

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 11/23

6:00 am-11:59 pm

2 stops17h 59m

Phoenix Sky Harbor Intl

Wed 12/2

7:35 am-6:16 pm

2 stops10h 41m

$440

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 11/26

6:00 am-4:40 pm

2 stops10h 40m

Phoenix Sky Harbor Intl

Wed 12/2

7:35 am-6:16 pm

2 stops10h 41m

$445

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/2

7:00 am-10:37 am

1 stop4h 37m

Phoenix Sky Harbor Intl

Sun 9/13

9:23 am-5:16 pm

1 stop6h 53m

$449

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sun 10/18

4:05 pm-8:49 pm

1 stop5h 44m

Phoenix Sky Harbor Intl

Sat 10/24

9:10 am-5:16 pm

1 stop7h 06m

$449

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 11/13

6:45 am-9:13 am

Nonstop2h 28m

Phoenix Sky Harbor Intl

Mon 11/16

8:16 pm-10:25 pm

Nonstop2h 09m

$481

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 12/11

7:15 am-9:35 am

Nonstop2h 20m

Phoenix Sky Harbor Intl

Tue 12/15

6:25 am-1:27 pm

1 stop7h 02m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

Prices are currently low for flights on this route.

Typical prices usually range from $308 to $454.
The lowest price recently found on this route was $182.

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 $298. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Idaho Falls during the month November is also very affordable. Most momondo users find prices during this month for around $331.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $505. 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 $610. 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 $188. 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 $520. 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 to Phoenix Sky Harbor Intl Airport flights?

There are 2 cabin classes available to choose from on Idaho Falls to Phoenix Sky Harbor Intl Airport 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 25% 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 2026, prices for Idaho Falls to Phoenix Sky Harbor Intl Airport flights are approximately 164% 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

Fastest flight time	2h 20m
Direct flights	Every day

The fastest flight from Idaho Falls to Phoenix Sky Harbor Intl Airport takes 2h 20m

Direct flights go from Idaho Falls to Phoenix Sky Harbor Intl Airport every day.

Search flight deals

Frequently asked questions about flying from Idaho Falls to Phoenix Sky Harbor Intl Airport

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 20m.
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?
The number of operators available for flights from Idaho Falls Fanning Field Airport to Phoenix Sky Harbor Intl Airport is 4 as of August 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Idaho Falls to Phoenix Sky Harbor Intl Airport is Canadair (Bombardier) Regional Jet 700, representing 25.00% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 12.50%, Airbus A319 at 12.50%, and Boeing 737 MAX 9 at 12.50%.
What is the most popular airline from Idaho Falls to Phoenix Sky Harbor Intl Airport?
Based on momondo bookings for flights between Idaho Falls and Phoenix Sky Harbor Intl Airport, the leading airline is American Airlines, making up 57% of the total bookings. Other popular airlines include Allegiant Air with 16%, Delta with 14%, and United Airlines with 13%.

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 Air	PriceFrom $110	Free Cancellation	Rating 7.3 680 reviews	Search Allegiant Air flights
Delta	PriceFrom $218	Free Cancellation	Rating 7.8 8,488 reviews	Search Delta flights
United Airlines	PriceFrom $280	Free Cancellation	Rating 7.4 10,058 reviews	Search United Airlines flights
American Airlines	PriceFrom $291	Free Cancellation	Rating 7.1 11,843 reviews	Search American Airlines flights

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Glendale

Goodyear

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Surprise

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Casa Grande

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Globe

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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.

An easier way to manage your Phoenix Sky Harbor Intl Airport trip

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Cheap flights from Idaho Falls to Phoenix from $77

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 8/31. 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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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

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

momondo Fare Finder

Use the filters below to find and compare flights from Idaho Falls to Phoenix Sky Harbor Intl Airport that are best for you.

See travel insights to Phoenix from

How to get the cheapest flight ticket from Idaho Falls to Phoenix Sky Harbor Intl Airport

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?

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

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

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

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

Can stopping save me money on Idaho Falls to Phoenix Sky Harbor Intl Airport flights?

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

What is the cheapest airline that flies from Idaho Falls Fanning Field to Phoenix Sky Harbor Intl?

What airlines fly to Phoenix Sky Harbor Intl Airport?

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

Cheap Idaho Falls to Phoenix Sky Harbor Intl Airport (IDA to PHX) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Phoenix?

Why use momondo?

An easier way to manage your Phoenix Sky Harbor Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Phoenix. Availability may vary depending on flight origin and airline.

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According to popular flight searches on momondo this year