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$103+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$218
(Kiwi.com)

One-way from

$103
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$166
From Idaho Falls Fanning Field to Phoenix
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One-way flight from Idaho Falls Fanning Field to Phoenix
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Highest demand for flights based on searches. 10% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/1710:57 pmIDA - PHX
1 stop14h 26mMultiple Airlines
Sun 10/268:03 pmPHX - IDA
1 stop15h 46mMultiple Airlines
Deal found 9/10$218
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/2410:57 pmIDA - PHX
1 stop14h 26mMultiple Airlines
Mon 10/275:45 amPHX - IDA
1 stop6h 04mMultiple Airlines
Deal found 9/11$236
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/38:52 pmIDA - PHX
1 stop21h 58mMultiple Airlines
Wed 11/125:16 pmPHX - IDA
2 stops46h 52mMultiple Airlines
Deal found 9/10$247
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/38:52 pmIDA - PHX
1 stop21h 58mMultiple Airlines
Mon 11/107:01 amPHX - IDA
1 stop6h 06mMultiple Airlines
Deal found 9/10$249
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/710:56 pmIDA - PHX
1 stop24h 38mMultiple Airlines
Mon 11/107:01 amPHX - IDA
1 stop6h 06mMultiple Airlines
Deal found 9/10$273
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/710:56 pmIDA - PHX
1 stop19h 54mMultiple Airlines
Wed 11/125:16 pmPHX - IDA
2 stops46h 52mMultiple Airlines
Deal found 9/10$287
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 11/86:53 pmIDA - PHX
1 stop3h 42mDelta
Tue 11/117:00 amPHX - IDA
1 stop5h 39mDelta
Deal found 9/10$311
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:50 pmIDA - PHX
1 stop5h 49mAlaska Airlines
Sat 11/88:00 amPHX - IDA
1 stop7h 13mAlaska Airlines
Deal found 9/10$315
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/710:56 pmIDA - PHX
1 stop14h 14mMultiple Airlines
Sun 11/910:53 pmPHX - IDA
2 stops14h 14mMultiple Airlines
Deal found 9/9$321

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 September 11, 2025.
Use the filters below to find and compare flights from Idaho Falls to Phoenix that are best for you.

Fly from

Idaho Falls

Fly to

Phoenix

Route

Depart

Return

Price

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 10/27

7:40 pm-10:24 pm

1 stop27h 44m

Phoenix Sky Harbor Intl

Mon 11/3

12:39 pm-8:02 pm

1 stop7h 23m

$234

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 11/4

6:53 pm-12:38 am

1 stop5h 45m

Phoenix Sky Harbor Intl

Tue 11/11

6:22 pm-10:19 pm

1 stop3h 57m

$311

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sat 11/8

6:53 pm-10:35 pm

1 stop3h 42m

Phoenix Sky Harbor Intl

Tue 11/11

7:00 am-12:39 pm

1 stop5h 39m

$311

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 11/4

3:50 pm-9:39 pm

1 stop5h 49m

Phoenix Sky Harbor Intl

Sat 11/8

8:00 am-3:13 pm

1 stop7h 13m

$315

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 11/5

3:50 pm-11:51 pm

1 stop8h 01m

Phoenix Sky Harbor Intl

Wed 11/12

6:20 am-3:13 pm

1 stop8h 53m

$315

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sat 11/8

6:53 pm-10:35 pm

1 stop3h 42m

Phoenix Sky Harbor Intl

Wed 11/12

7:13 am-10:19 pm

2 stops15h 06m

$326

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 11/4

3:50 pm-11:51 pm

1 stop8h 01m

Phoenix Sky Harbor Intl

Thu 11/6

5:03 pm-11:59 pm

1 stop6h 56m

$339

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 2/17

8:00 am-3:21 pm

1 stop7h 21m

Phoenix Sky Harbor Intl

Mon 2/23

8:04 pm-10:38 pm

2 stops26h 34m

$364

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 11/3

3:50 pm-9:39 pm

1 stop5h 49m

Phoenix Sky Harbor Intl

Sat 11/8

8:00 am-3:13 pm

1 stop7h 13m

$364

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 10/24

4:15 pm-9:44 am

2 stops18h 29m

Phoenix Sky Harbor Intl

Mon 10/27

3:15 pm-11:59 pm

2 stops7h 44m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
1
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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 $258). Flying from Idaho Falls to Phoenix in March is currently the most expensive (average of $337). 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 September 11, 2025.

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 57% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Idaho Falls to Phoenix?

Use this chart to determine the cheapest time to fly round-trip from Idaho Falls to Phoenix. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Idaho Falls to Phoenix flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Allegiant Air
7.2
Good
702 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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. 5 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 $311, Delta can have you in Phoenix from Idaho Falls in 5h 45m. 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 $108. Other airlines that can offer you cheap pricing are Alaska Airlines, from $293, and Delta, from $308. Allegiant Air is priced at 74% lower than the current average price of a flight leaving 3 months from now.

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

    On average you can expect to pay $402 for a flight from Idaho Falls to Phoenix. The cheapest flight overall is $210 while the most popular route, (Idaho Falls Fanning Field - Phoenix Sky Harbor Intl) is currently priced at $291.

  • 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 $258). Flying from Idaho Falls to Phoenix in March is currently the most expensive (average of $337). 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 5 airlines flying from Idaho Falls to Phoenix

Discover the top 5 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$108Average$238FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$293Average$514FlexibilityNo cancel feeOn-time75%
DeltaCheapest$308Average$402FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$311Average$556FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$405Average$539FlexibilityNo cancel feeOn-time69%

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