HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phoenix

$96+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho Falls to Phoenix with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Mon 12/2910:52 pmIDA - PHX
1 stop9h 56mMultiple Airlines
Mon 1/121:45 pmPHX - IDA
1 stop6h 45mMultiple Airlines
Deal found 12/17$370
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/164:19 pmIDA - PHX
1 stop4h 57mUnited Airlines
Tue 1/2010:00 amPHX - IDA
1 stop5h 31mUnited Airlines
Deal found 12/15$376
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:00 amIDA - PHX
Nonstop2h 21mAmerican Airlines
Fri 1/98:28 pmPHX - IDA
Nonstop2h 08mAmerican Airlines
Deal found 12/17$401
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:30 pmIDA - PHX
1 stop7h 11mUnited Airlines
Fri 1/98:30 amPHX - IDA
1 stop5h 00mUnited Airlines
Deal found 12/17$439
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amIDA - PHX
Nonstop2h 21mAmerican Airlines
Sat 1/38:07 pmPHX - IDA
Nonstop2h 14mAmerican Airlines
Deal found 12/17$451
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amIDA - PHX
Nonstop2h 21mAmerican Airlines
Mon 1/128:28 pmPHX - IDA
Nonstop2h 08mAmerican Airlines
Deal found 12/17$461
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:55 amIDA - PHX
1 stop5h 36mDelta
Sat 12/276:35 amPHX - IDA
1 stop5h 52mDelta
Deal found 12/17$496
This Delta deal was found by Cheapflights users on 12/15. 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 12/205:55 amIDA - PHX
1 stop4h 07mDelta
Sun 12/285:37 pmPHX - IDA
1 stop5h 15mDelta
Deal found 12/15$525

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 December 18, 2025.

Round-trip from

$198
(Kiwi.com)

One-way from

$96
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$418
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. 11% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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 1/19

9:20 pm-10:22 am

1 stop13h 02m

Phoenix Sky Harbor Intl

Sun 1/25

9:55 pm-2:19 pm

1 stop16h 24m

$198

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Fri 1/16

9:20 pm-5:27 pm

1 stop20h 07m

Phoenix Sky Harbor Intl

Mon 1/19

9:30 am-2:19 pm

1 stop4h 49m

$237

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 1/26

9:20 pm-10:22 am

1 stop13h 02m

Phoenix Sky Harbor Intl

Sat 1/31

6:44 pm-8:30 pm

2 stops49h 46m

$284

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Tue 1/13

2:40 pm-7:45 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Tue 1/20

10:00 am-3:31 pm

1 stop5h 31m

$291

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-12:16 pm

1 stop17h 18m

Phoenix Sky Harbor Intl

Thu 1/15

8:00 am-10:59 pm

1 stop14h 59m

$302

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sun 2/1

9:00 am-5:53 pm

1 stop8h 53m

Phoenix Sky Harbor Intl

Tue 2/3

3:17 pm-10:59 pm

1 stop7h 42m

$312

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-2:14 pm

1 stop19h 16m

Phoenix Sky Harbor Intl

Sat 1/31

7:00 am-6:18 pm

1 stop11h 18m

$312

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Wed 1/7

6:58 pm-11:37 am

1 stop16h 39m

Phoenix Sky Harbor Intl

Fri 1/9

7:00 am-6:18 pm

1 stop11h 18m

$325

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Mon 1/5

10:52 pm-10:16 am

1 stop11h 24m

$96

Idaho FallsPhoenix

IDA - PHX

IDAPHX

Idaho Falls Fanning Field

Sat 1/17

6:58 pm-7:48 pm

1 stop24h 50m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 16 results
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, May is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $97). Flying from Idaho Falls to Phoenix in March is currently the most expensive (average of $208). 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 December 18, 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 47% on your trip compared to booking a flight at noon.

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 December 13, 2025.

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

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

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 December 18, 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
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,474 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,006 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,053 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Allegiant Air
7.2
Good
700 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 $107. Other airlines that can offer you cheap pricing are Alaska Airlines, from $256, and United Airlines, from $280. Allegiant Air is priced at 74% 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), Delta ($130), and Alaska Airlines ($146).

  • 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 (91%), American Airlines (91%) and Porter Airlines (91%).

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

    On average you can expect to pay $335 for a flight from Idaho Falls to Phoenix. The cheapest flight overall is $164 while the most popular route, (Idaho Falls Fanning Field - Phoenix Sky Harbor Intl) is currently priced at $198.

  • 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, May is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $97). Flying from Idaho Falls to Phoenix in March is currently the most expensive (average of $208). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho Falls to Phoenix

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Las Vegas flights
Boise to Sky Harbor Intl flights
Spokane to Sky Harbor Intl flights
Spokane to Las Vegas flights
Idaho Falls to Las Vegas flights
Spokane to Tucson flights
Jackson to Sky Harbor Intl flights
Lewiston to Yuma flights
Idaho Falls to Sky Harbor Intl flights
Boise to Tucson flights
Jackson to Las Vegas flights
Twin Falls to Las Vegas flights
Hailey to Sky Harbor Intl flights
Hailey to Las Vegas flights
Idaho Falls to Tucson flights
Twin Falls to Sky Harbor Intl flights
Boise to Yuma flights
Lewiston to Las Vegas flights
Jackson to Tucson flights
Boise to Flagstaff flights
Spokane to Yuma flights
Pocatello to Las Vegas flights
Spokane to Flagstaff flights
Pocatello to Sky Harbor Intl flights

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$108Average$190FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$256Average$514FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$291Average$463FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$405Average$620FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.