Phoenix

$97+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Aug 11 — Aug 181
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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 12, 2026.

This Delta deal was found by Cheapflights users on 7/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:56 pm
IDA
-
PHX
1 stop6h 01m
Delta
Sat 10/175:25 pm
PHX
-
IDA
1 stop3h 55m
Delta
Deal found 7/7$223
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/215:33 pm
IDA
-
PHX
1 stop20h 15m
Multiple Airlines
Mon 8/3112:20 pm
PHX
-
IDA
1 stop6h 23m
Multiple Airlines
Deal found 7/9$244
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/710:54 pm
IDA
-
PHX
1 stop13h 33m
Multiple Airlines
Mon 8/107:45 am
PHX
-
IDA
1 stop7h 20m
Multiple Airlines
Deal found 7/11$245
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 8/215:33 pm
IDA
-
PHX
1 stop6h 51m
Multiple Airlines
Thu 8/2710:30 pm
PHX
-
IDA
1 stop10h 52m
Multiple Airlines
Deal found 7/7$283
This Kiwi.com deal was found by Cheapflights users on 7/11. 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
2 stops16h 46m
Multiple Airlines
Mon 10/1912:49 pm
PHX
-
IDA
1 stop6h 54m
Multiple Airlines
Deal found 7/11$298
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 9/78:36 pm
IDA
-
PHX
1 stop17h 23m
Multiple Airlines
Sun 9/135:11 pm
PHX
-
IDA
2 stops17h 23m
Multiple Airlines
Deal found 7/11$309
This Delta deal was found by Cheapflights users on 7/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:57 pm
IDA
-
PHX
1 stop4h 16m
Delta
Sun 10/46:00 am
PHX
-
IDA
1 stop5h 15m
Delta
Deal found 7/7$357

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 12, 2026.

Round-trip from

$223
(Delta)

One-way from

$97
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

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

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 12, 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

Tue 12/22

6:00 am-11:29 am

1 stop5h 29m

Phoenix Sky Harbor Intl

Sat 12/26

6:20 pm-10:19 pm

1 stop3h 59m

$395

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/30

3:57 pm-8:44 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Tue 10/6

4:13 pm-10:54 pm

1 stop5h 41m

$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

Sat 10/17

4:12 pm-8:34 pm

1 stop5h 22m

Phoenix Sky Harbor Intl

Tue 10/20

4:13 pm-10:54 pm

1 stop5h 41m

$395

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/23

6:57 pm-10:13 pm

1 stop4h 16m

Phoenix Sky Harbor Intl

Tue 9/29

5:15 pm-10:22 pm

1 stop4h 07m

$395

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/2

3:57 pm-8:44 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Thu 10/1

7:49 pm-1:24 pm

2 stops16h 35m

$401

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Thu 9/10

6:18 am-2:33 pm

2 stops9h 15m

Phoenix Sky Harbor Intl

Mon 9/14

5:45 pm-1:24 pm

1 stop18h 39m

$414

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/22

2:01 pm-7:48 pm

1 stop6h 47m

Phoenix Sky Harbor Intl

Fri 9/25

7:02 am-10:56 pm

2 stops14h 54m

$423

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 9/16

6:18 am-10:27 pm

2 stops17h 09m

Phoenix Sky Harbor Intl

Fri 9/18

8:02 am-1:24 pm

1 stop28h 22m

$431

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sat 10/17

6:00 am-8:46 am

1 stop3h 46m

Phoenix Sky Harbor Intl

Mon 10/19

1:30 pm-10:20 pm

1 stop7h 50m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Showing 1-10 of 22 resultsSorted by cheapest first
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3

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, January is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $91). Flying from Idaho Falls to Phoenix in May is currently the most expensive (average of $163). 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 12, 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 49% on your trip compared to booking a flight in the morning.

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 12, 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.

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

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

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

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

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

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

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

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

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Overall

7.8

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, Delta can have you in Phoenix from Idaho Falls in 5h 29m. 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 United Airlines, from $280, and American Airlines, from $291. 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 (94%), American Airlines (94%) and Porter Airlines (93%).

  • 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, January is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $91). Flying from Idaho Falls to Phoenix in May is currently the most expensive (average of $163). 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 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$110Average$178FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$280Average$381FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$291Average$411FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$398FlexibilityNo cancel feeOn-timeN/A

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