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Idaho Falls

$102+ Cheap flights from Phoenix to Idaho Falls (IDA)

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IDA
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Phoenix to Idaho Falls

Cheapest flights from Phoenix to Idaho Falls
Explore the most affordable flight options available from Phoenix to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/36:15 am
PHX
-
IDA
1 stop7h 57m
Multiple Airlines
Mon 4/610:06 pm
IDA
-
PHX
1 stop23h 10m
Multiple Airlines
Deal found 3/8$254
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 4/256:00 am
PHX
-
IDA
1 stop8h 29m
Alaska Airlines
Wed 4/294:06 pm
IDA
-
PHX
1 stop6h 53m
Alaska Airlines
Deal found 3/6$277
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 8/127:00 am
PHX
-
IDA
1 stop5h 06m
Alaska Airlines
Fri 8/144:14 pm
IDA
-
PHX
1 stop5h 26m
Alaska Airlines
Deal found 3/8$346
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:47 pm
PHX
-
IDA
1 stop5h 52m
Alaska Airlines
Sun 9/274:00 pm
IDA
-
PHX
1 stop5h 17m
Alaska Airlines
Deal found 3/9$361
This Travelocity deal was found by Cheapflights users on 3/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:47 pm
PHX
-
IDA
1 stop5h 52m
Alaska Airlines
Sat 9/194:00 pm
IDA
-
PHX
1 stop5h 17m
Alaska Airlines
Deal found 3/10$366
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
PHX
-
IDA
1 stop6h 25m
United Airlines
Wed 6/105:54 pm
IDA
-
PHX
1 stop5h 05m
United Airlines
Deal found 3/7$375
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
PHX
-
IDA
1 stop15h 52m
Alaska Airlines
Sat 4/184:59 pm
IDA
-
PHX
1 stop5h 52m
Alaska Airlines
Deal found 3/7$385
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/268:56 pm
PHX
-
IDA
1 stop15h 10m
Alaska Airlines
Tue 6/304:14 pm
IDA
-
PHX
1 stop5h 26m
Alaska Airlines
Deal found 3/9$391
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:00 am
PHX
-
IDA
1 stop6h 25m
United Airlines
Tue 6/92:30 pm
IDA
-
PHX
1 stop7h 00m
United Airlines
Deal found 3/11$395

Find flight deals from Phoenix to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Idaho Falls (IDA). 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 March 11, 2026.

Round-trip from

$254
(Kiwi.com)

One-way from

$102
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$366
From Phoenix to Idaho Falls Fanning Field
Search Deals
One-way flight from Phoenix to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to Idaho Falls 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 March 11, 2026.
Use the filters below to find and compare flights from Phoenix to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Sat 4/25

6:00 am-3:29 pm

1 stop8h 29m

Idaho Falls Fanning Field

Wed 4/29

4:06 pm-9:59 pm

1 stop6h 53m

$277

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Fri 5/8

7:59 pm-10:40 pm

1 stop25h 41m

Idaho Falls Fanning Field

Wed 5/13

6:00 am-10:46 am

1 stop5h 46m

$397

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Fri 3/20

6:40 am-3:14 pm

1 stop7h 34m

Idaho Falls Fanning Field

Mon 3/23

10:13 pm-8:18 pm

1 stop23h 05m

$405

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Wed 4/15

6:00 am-10:52 pm

1 stop15h 52m

Idaho Falls Fanning Field

Sat 4/18

4:59 pm-10:33 am

2 stops18h 34m

$425

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Tue 3/24

8:45 pm-5:19 pm

1 stop19h 34m

Idaho Falls Fanning Field

Tue 3/31

5:59 pm-10:51 pm

1 stop5h 52m

$440

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Thu 5/28

7:20 am-10:53 pm

2 stops14h 33m

Idaho Falls Fanning Field

Tue 6/9

4:03 pm-9:52 am

1 stop18h 49m

$443
Quickest round-trip

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Fri 4/17

5:23 pm-10:40 pm

1 stop4h 17m

Idaho Falls Fanning Field

Sun 4/19

5:47 am-8:29 am

1 stop3h 42m

$451

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Tue 5/26

7:59 pm-1:17 pm

2 stops16h 18m

Idaho Falls Fanning Field

Tue 6/9

4:03 pm-9:52 am

1 stop18h 49m

$469
Cheapest one-way
Quickest one-way

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Sat 5/9

4:00 pm-10:40 pm

1 stop5h 40m

$131

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Wed 5/6

11:45 am-10:40 pm

2 stops9h 55m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Phoenix to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Phoenix 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 Phoenix to Idaho Falls

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

Currently, May is the cheapest month in which you can book a flight from Phoenix to Idaho Falls (average of $93). Flying from Phoenix to Idaho Falls in October is currently the most expensive (average of $227). 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 PHX to IDA?

Find hourly flight availability from Phoenix to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 11, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 43% on flights from Phoenix to Idaho Falls by exploring options for tickets in the afternoon.

How often are flights from Phoenix to Idaho Falls delayed?

About 16% of weekly flights between Phoenix and Idaho Falls have experienced delays in the past year, with the average delay time being 120 minutes.

What is the most punctual flight time for Phoenix to Idaho Falls flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Phoenix to Idaho Falls flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated March 11, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air from Phoenix to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,278 reviews

Food

7.2

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,278 reviews
Delta
7.9
Good
8,278 reviews

Food

7.2

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,413 reviews
Delta
7.9
Good
8,278 reviews

Food

7.2

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.3
Good
714 reviews
Delta
7.9
Good
8,278 reviews

Food

7.2

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,419 reviews
Delta
7.9
Good
8,278 reviews

Food

7.2

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Idaho Falls. 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 into for flights to Idaho Falls from Phoenix?

    Most people fly into Idaho Falls Fanning Field (IDA) if they book a flight to Idaho Falls from Phoenix. On average, Fanning Field has 0 inbound flights from Phoenix per day from 4 airlines. Idaho Falls Fanning Field is conveniently located just 3.8 mi from Idaho Falls’s city center.

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

    Departing from Phoenix to Idaho Falls will take you 8h 29m. Airlines will cover a distance of 696 mi.

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

    Cheapflights users have booked flights from Phoenix to Idaho Falls round-trip from $100. Other airlines that can offer you cheap pricing are Delta, from $220, and American Airlines, from $248. Allegiant Air is priced at 73% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $74. Users have also found prices from $135 and $145 on American Airlines and Delta, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix to Idaho Falls on time: Porter Airlines (89%), SkyWest Airlines (80%), American Airlines (80%).

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

    On average you can expect to pay $476 for a flight from Phoenix to Idaho Falls. The cheapest flight overall is $366 while the most popular route, (Phoenix Sky Harbor Intl - Idaho Falls Fanning Field) is currently priced at $254.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phoenix to Idaho Falls 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 Phoenix to Idaho Falls?

    Currently, May is the cheapest month in which you can book a flight from Phoenix to Idaho Falls (average of $93). Flying from Phoenix to Idaho Falls in October is currently the most expensive (average of $227). 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

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
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Top 4 airlines flying from Phoenix to Idaho Falls

Discover the top 4 airlines that operate flights from Phoenix to Idaho Falls. 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$100Average$197FlexibilityNo cancel feeOn-time88%
DeltaCheapest$220Average$408FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$351FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$290Average$445FlexibilityNo cancel feeOn-time69%

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