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$137+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$274
(Hawaiian Airlines)

One-way from

$137
(Alaska Airlines)

Popular in

March

Cheapest in

September

Average price

$379
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 ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:33 amIDA - PHX
Nonstop2h 17mAmerican Airlines
Sat 12/67:50 pmPHX - IDA
Nonstop2h 12mAmerican Airlines
Deal found 7/28$259
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:57 pmIDA - PHX
1 stop6h 03mHawaiian Airlines
Sat 9/203:58 pmPHX - IDA
1 stop5h 41mHawaiian Airlines
Deal found 7/30$274
This Delta deal was found by Cheapflights users on 7/30. 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.
Tue 9/166:51 pmIDA - PHX
1 stop5h 45mDelta
Sat 9/205:20 pmPHX - IDA
1 stop4h 05mDelta
Deal found 7/30$275
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/163:57 pmIDA - PHX
1 stop6h 03mAlaska Airlines
Fri 9/193:58 pmPHX - IDA
1 stop5h 41mAlaska Airlines
Deal found 7/30$283
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:56 pmIDA - PHX
1 stop5h 05mUnited Airlines
Wed 9/39:30 amPHX - IDA
1 stop6h 45mUnited Airlines
Deal found 7/30$349

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 30, 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

Tue 9/16

3:57 pm-9:00 pm

1 stop6h 03m

Phoenix Sky Harbor Intl

Sat 9/20

3:58 pm-10:39 pm

1 stop5h 41m

$274

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/16

6:51 pm-11:36 pm

1 stop5h 45m

Phoenix Sky Harbor Intl

Sat 9/20

5:20 pm-10:25 pm

1 stop4h 05m

$275

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/16

6:13 am-3:30 pm

2 stops10h 17m

Phoenix Sky Harbor Intl

Sat 9/20

7:00 am-3:20 pm

1 stop7h 20m

$296

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 8/20

5:56 pm-10:01 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Wed 9/3

9:30 am-5:15 pm

1 stop6h 45m

$349

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 9/30

3:57 pm-9:00 pm

1 stop6h 03m

$137

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 8/26

11:20 am-4:15 pm

1 stop5h 55m

$138

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 8/25

7:00 am-5:54 pm

2 stops11h 54m

$186

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 8/5

6:03 pm-10:00 pm

1 stop4h 57m

$205

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 8/4

6:12 pm-10:57 am

3 stops17h 45m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 30, 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 July 27, 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 July 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian 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

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 $274. Other airlines that can offer you cheap pricing are Delta, from $275, and Alaska Airlines, from $283. Hawaiian Airlines is priced at 34% 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 Alaska Airlines ($137), Delta ($138), and United Airlines ($181).

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

    On average you can expect to pay $609 for a flight from Idaho Falls to Phoenix. The cheapest flight overall is $385 while the most popular route, (Idaho Falls Fanning Field - Phoenix Sky Harbor Intl) is currently priced at $274.

  • 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$107Average$246FlexibilityNo cancel feeOn-time88%
DeltaCheapest$288Average$428FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$293Average$514FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$311Average$565FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$405Average$575FlexibilityNo cancel feeOn-time69%

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