$116 Cheap Flights from Phoenix (PHX) to Idaho Falls (IDA)

View $116 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)

Cheap Flights from Phoenix to Idaho Falls (PHX-IDA)

Prices were available within the past 7 days and start at $116 for one-way flights and $233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Tue, Nov 18
PHX
Phoenix
IDA
Idaho Falls
$233 Roundtrip, found 14 hours ago
$233
Roundtrip
found 14 hours ago
Select Delta flight, departing Tue, Nov 18 from Phoenix to Idaho Falls, returning Tue, Nov 18, priced at $233 found 14 hours ago
United
Wed, Nov 5 - Wed, Nov 12
PHX
Phoenix
IDA
Idaho Falls
$233 Roundtrip, found 19 hours ago
$233
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Nov 5 from Phoenix to Idaho Falls, returning Wed, Nov 12, priced at $233 found 19 hours ago
United
Wed, Nov 5 - Wed, Nov 12
PHX
Phoenix
IDA
Idaho Falls
$248 Roundtrip, found 19 hours ago
$248
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Nov 5 from Phoenix to Idaho Falls, returning Wed, Nov 12, priced at $248 found 19 hours ago
American Airlines
Tue, Nov 4 - Wed, Nov 5
PHX
Phoenix
IDA
Idaho Falls
$248 Roundtrip, found 1 hour ago
$248
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Nov 4 from Phoenix to Idaho Falls, returning Wed, Nov 5, priced at $248 found 1 hour ago
Alaska Airlines
Tue, Nov 18 - Wed, Nov 19
PHX
Phoenix
IDA
Idaho Falls
$257 Roundtrip, found 14 hours ago
$257
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Tue, Nov 18 from Phoenix to Idaho Falls, returning Wed, Nov 19, priced at $257 found 14 hours ago
American Airlines
Wed, Nov 12 - Sun, Nov 16
PHX
Phoenix
IDA
Idaho Falls
$258 Roundtrip, found 1 day ago
$258
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Nov 12 from Phoenix to Idaho Falls, returning Sun, Nov 16, priced at $258 found 1 day ago
Alaska Airlines
Sat, Jan 17 - Tue, Jan 27
PHX
Phoenix
IDA
Idaho Falls
$261 Roundtrip, found 3 days ago
$261
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Phoenix to Idaho Falls, returning Tue, Jan 27, priced at $261 found 3 days ago
Alaska Airlines
Wed, Nov 5 - Wed, Nov 12
PHX
Phoenix
IDA
Idaho Falls
$262 Roundtrip, found 19 hours ago
$262
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Wed, Nov 5 from Phoenix to Idaho Falls, returning Wed, Nov 12, priced at $262 found 19 hours ago
Hawaiian Airlines
Fri, Nov 14 - Tue, Nov 18
PHX
Phoenix
IDA
Idaho Falls
$267 Roundtrip, found 3 days ago
$267
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Nov 14 from Phoenix to Idaho Falls, returning Tue, Nov 18, priced at $267 found 3 days ago
Delta
Tue, Oct 28 - Sat, Nov 15
PHX
Phoenix
IDA
Idaho Falls
$272 Roundtrip, found 17 hours ago
$272
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Oct 28 from Phoenix to Idaho Falls, returning Sat, Nov 15, priced at $272 found 17 hours ago

Find the cheapest month to fly from Phoenix (PHX) to Idaho Falls (IDA)

January is typically the cheapest month to fly

From $253 - $603 per traveler.

Alternative airports near Idaho Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Idaho Falls Regional IDA. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $315
IDA
Idaho Falls Regional
CheapestClosest
Average driving time to city center5 min
Flights from $315

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA) cost?
Secure a cheap one-way flight from $116 or cheap return flight from $233 from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
The cheapest month to fly from PHX to IDA is November, when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
Catch a nonstop flight with American Airlines and go straight from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA).
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
To find the cheapest airline flying from PHX to IDA, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
On average, only 1 direct flight departs daily from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA). Need more options? Use Expedia's filters to find flights with layovers and squeeze another destination into your itinerary.
What are the most popular departure times for flights from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
Flights between PHX and IDA tend to be busiest at 8 PM. If you're after a more relaxed experience and potentially cheaper prices, choose a time outside the usual busy windows.
What day of the week has the most flights from PHX to IDA?
Fly on a Saturday if you're looking for the biggest selection of flights from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA).
What is the earliest flight from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
Take the earliest flight at around 8:05PM UTC-7, departing from Sky Harbor Intl. Airport (PHX). You'll be in the air for roughly 2h 12m, touching down at Idaho Falls Regional Airport (IDA) at approximately 10:17PM UTC-7.
How long does it take to fly from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
The average flight time from PHX to IDA is 2 hours and 12 minutes, covering a distance of 700 mi.
What airline has the least delays from PHX to IDA?
With 81% of flights typically arriving on schedule, American Airlines has the best on-time performance for direct flights from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA). To check your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
To arrive at Idaho Falls Regional Airport (IDA) without delays, book a flight that takes off from Sky Harbor Intl. Airport (PHX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Idaho Falls from Sky Harbor Intl. Airport (PHX)?
If you're on a direct flight from Sky Harbor Intl. Airport (PHX) to Idaho Falls, Idaho Falls Regional Airport (IDA) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA) last-minute?
Holding off until just before your trip to book your flight from PHX to IDA generally means paying more. While you may find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a PHX to IDA flight and hotel package?
Opting for a PHX to IDA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA)?
It's usually possible to reschedule or cancel your PHX to IDA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$232
Distance
696 mi

Book with confidence

Book with confidence

Phoenix to Idaho Falls Flights

The cheapest times to fly from Phoenix to Idaho Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Idaho Falls are during the month of November. You can find some of the cheapest flights from Phoenix to Idaho Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Idaho Falls

Sunday is one of the best days to book for cheap flights from Phoenix to Idaho Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Idaho Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $116 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Idaho Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Idaho Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Idaho Falls Flights

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*Available to One Key members.