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$88+ Cheap flights from Idaho Falls (IDA) to Phoenix

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Aug 21 — Aug 281
Fri 8/21
Fri 8/28
1 adult, Economy
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Cheap flight deals from Idaho Falls to Phoenix

Cheapest flights from Idaho Falls to Phoenix
Explore the most affordable flight options available from Idaho Falls to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:33 pm
IDA
-
PHX
1 stop13h 40m
Multiple Airlines
Mon 10/266:30 am
PHX
-
IDA
1 stop5h 06m
Multiple Airlines
Deal found 7/19$246
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:51 pm
IDA
-
PHX
1 stop16h 58m
Multiple Airlines
Sun 9/2010:55 pm
PHX
-
IDA
1 stop11h 39m
Multiple Airlines
Deal found 7/17$274
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:28 pm
IDA
-
PHX
1 stop14h 45m
Multiple Airlines
Mon 10/266:30 am
PHX
-
IDA
1 stop5h 06m
Multiple Airlines
Deal found 7/19$290
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:49 pm
IDA
-
PHX
1 stop19h 01m
Multiple Airlines
Mon 10/1912:49 pm
PHX
-
IDA
1 stop6h 54m
Multiple Airlines
Deal found 7/21$301
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:45 pm
IDA
-
PHX
1 stop17h 04m
Multiple Airlines
Sun 9/2710:55 pm
PHX
-
IDA
1 stop11h 39m
Multiple Airlines
Deal found 7/21$302
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:08 pm
IDA
-
PHX
1 stop7h 16m
Multiple Airlines
Sun 8/3010:30 pm
PHX
-
IDA
1 stop14h 17m
Multiple Airlines
Deal found 7/18$307
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:37 pm
IDA
-
PHX
1 stop17h 12m
Multiple Airlines
Sun 9/135:55 pm
PHX
-
IDA
1 stop16h 39m
Multiple Airlines
Deal found 7/20$323
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:33 pm
IDA
-
PHX
2 stops10h 38m
Multiple Airlines
Fri 10/236:30 am
PHX
-
IDA
1 stop6h 04m
Multiple Airlines
Deal found 7/19$362

Find flight deals from Idaho Falls to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 22, 2026.

Round-trip from

$246
(Kiwi.com)

One-way from

$88
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$442
From Idaho Falls Fanning Field to Phoenix
Search Deals
One-way flight from Idaho Falls Fanning Field to Phoenix
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Phoenix 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, Cheapflights users made 2,558,603 searches. Data last updated July 22, 2026.
Use the filters below to find and compare flights from Idaho Falls to Phoenix 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

Wed 9/9

6:18 am-1:02 pm

1 stop7h 44m

Phoenix Sky Harbor Intl

Sat 9/12

7:49 pm-1:24 pm

2 stops16h 35m

$391

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 12/29

6:45 pm-12:42 am

1 stop5h 57m

Phoenix Sky Harbor Intl

Tue 1/5

7:00 am-12:27 pm

1 stop5h 27m

$395
Quickest round-trip

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/9

6:57 pm-10:13 pm

1 stop4h 16m

Phoenix Sky Harbor Intl

Sat 9/12

5:15 pm-10:22 pm

1 stop4h 07m

$395

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/2

6:18 am-10:29 pm

2 stops17h 11m

Phoenix Sky Harbor Intl

Thu 10/1

12:13 pm-10:56 pm

2 stops9h 43m

$412

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 10/23

1:58 pm-3:00 pm

2 stops26h 02m

Phoenix Sky Harbor Intl

Mon 10/26

7:24 pm-3:20 pm

2 stops18h 56m

$422

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 9/10

6:18 am-7:07 pm

2 stops13h 49m

Phoenix Sky Harbor Intl

Mon 9/14

7:49 pm-10:56 pm

2 stops26h 07m

$458

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 8/20

4:04 pm-8:24 pm

1 stop5h 20m

Phoenix Sky Harbor Intl

Mon 8/31

6:00 am-1:29 pm

1 stop6h 29m

$463

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 9/10

2:01 pm-10:00 pm

1 stop8h 59m

Phoenix Sky Harbor Intl

Sun 9/13

6:02 am-3:20 pm

1 stop8h 18m

$463
Cheapest one-way

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 10/21

6:09 am-12:55 pm

1 stop7h 46m

$198

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 8/19

4:04 pm-10:09 pm

1 stop7h 05m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Idaho Falls to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to Phoenix

What is the cheapest month to book a flight from Idaho Falls to Phoenix?

Currently, September is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $166). Flying from Idaho Falls to Phoenix in May is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IDA to PHX?

Find hourly flight availability from Idaho Falls to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 22, 2026.

A simple way to save on the total cost of your ticket is to fly from Idaho Falls to Phoenix in the afternoon. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Idaho Falls to Phoenix?

How far ahead should I book a flight from Idaho Falls to Phoenix?

The price you pay for your flight from Idaho Falls to Phoenix may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated July 22, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAllegiant Air from Idaho Falls to Phoenix to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Boarding

8.1

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Boarding

8.1

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,024 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Boarding

8.1

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Allegiant Air
7.3
Good
683 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Boarding

8.1

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,831 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Boarding

8.1

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to Phoenix?

    For a flight from Idaho Falls to Phoenix, you will be flying from Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 outbound flights to Phoenix per day. 4 airlines have flights to Phoenix from Idaho Falls Fanning Field on a regular basis.

  • How long is the flight from Idaho Falls to Phoenix?

    For as low as $395, Alaska Airlines can have you in Phoenix from Idaho Falls in 5h 57m. Airlines will cover a distance of 696 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Idaho Falls to Phoenix round-trip?

    Cheapflights users have booked flights from Idaho Falls to Phoenix round-trip from $110. Other airlines that can offer you cheap pricing are Delta, from $218, and United Airlines, from $280. Allegiant Air is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Idaho Falls to Phoenix one-way?

    The cheapest airlines for a one-way flight from Idaho Falls to Phoenix are Allegiant Air ($62), United Airlines ($147), and Delta ($159).

  • What are the most reliable airlines from Idaho Falls to Phoenix?

    The top 3 most reliable airlines when flying from Idaho Falls to Phoenix are SkyWest Airlines (100%), American Airlines (100%) and Porter Airlines (100%).

  • What are the cheapest flights from Idaho Falls to Phoenix?

    On average you can expect to pay $766 for a flight from Idaho Falls to Phoenix. The cheapest flight overall is $453 while the most popular route, (Idaho Falls Fanning Field - Phoenix Sky Harbor Intl) is currently priced at $301.

  • Can I find deals for flights from Idaho Falls to Phoenix that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Phoenix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Phoenix.

  • Can I find deals for business class flights from Idaho Falls to Phoenix?

    Yes. Cheapflights offers flight deals from Idaho Falls to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho Falls to Phoenix?

    Currently, September is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $166). Flying from Idaho Falls to Phoenix in May is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Idaho Falls to Phoenix

Discover the top 4 airlines that operate flights from Idaho Falls to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$110Average$212FlexibilityNo cancel feeOn-time88%
DeltaCheapest$218Average$391FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$280Average$381FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$291Average$411FlexibilityNo cancel feeOn-time71%

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