$130 Cheap Flights from Phoenix (PHX) to Idaho Falls (IDA)

View $130 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)

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

Prices were available within the past 7 days and start at $130 for one-way flights and $271 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Nov 3 - Sun, Nov 9
PHX
Phoenix
IDA
Idaho Falls
$271 Roundtrip, found 6 days ago
$271
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Nov 3 from Phoenix to Idaho Falls, returning Sun, Nov 9, priced at $271 found 6 days ago
American Airlines
Tue, Nov 18 - Sun, Nov 23
PHX
Phoenix
IDA
Idaho Falls
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 18 from Phoenix to Idaho Falls, returning Sun, Nov 23, priced at $275 found 6 days ago
Alaska Airlines
Tue, Nov 18 - Sun, Nov 23
PHX
Phoenix
IDA
Idaho Falls
$277 Roundtrip, found 6 days ago
$277
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Nov 18 from Phoenix to Idaho Falls, returning Sun, Nov 23, priced at $277 found 6 days ago
Alaska Airlines
Sat, Oct 4 - Tue, Oct 7
PHX
Phoenix
IDA
Idaho Falls
$279 Roundtrip, found 16 hours ago
$279
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Oct 4 from Phoenix to Idaho Falls, returning Tue, Oct 7, priced at $279 found 16 hours ago
Delta
Tue, Aug 26 - Sat, Aug 30
PHX
Phoenix
IDA
Idaho Falls
$279 Roundtrip, found 18 hours ago
$279
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue, Aug 26 from Phoenix to Idaho Falls, returning Sat, Aug 30, priced at $279 found 18 hours ago
Alaska Airlines
Wed, Sep 10 - Sat, Sep 13
PHX
Phoenix
IDA
Idaho Falls
$281 Roundtrip, found 2 days ago
$281
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Sep 10 from Phoenix to Idaho Falls, returning Sat, Sep 13, priced at $281 found 2 days ago
Delta
Wed, Aug 6 - Tue, Aug 19
PHX
Phoenix
IDA
Idaho Falls
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Aug 6 from Phoenix to Idaho Falls, returning Tue, Aug 19, priced at $282 found 2 days ago
American Airlines
Tue, May 19 - Sat, May 23
PHX
Phoenix
IDA
Idaho Falls
$283 Roundtrip, found 17 hours ago
$283
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, May 19 from Phoenix to Idaho Falls, returning Sat, May 23, priced at $283 found 17 hours ago
United
Sat, Jul 26 - Tue, Aug 5
PHX
Phoenix
IDA
Idaho Falls
$285 Roundtrip, found 10 hours ago
$285
Roundtrip
found 10 hours ago
Select United flight, departing Sat, Jul 26 from Phoenix to Idaho Falls, returning Tue, Aug 5, priced at $285 found 10 hours ago
Hawaiian Airlines
Fri, Aug 22 - Sat, Aug 30
PHX
Phoenix
IDA
Idaho Falls
$322 Roundtrip, found 18 hours ago
$322
Roundtrip
found 18 hours ago
Select Hawaiian Airlines flight, departing Fri, Aug 22 from Phoenix to Idaho Falls, returning Sat, Aug 30, priced at $322 found 18 hours ago

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

October is typically the cheapest month to fly

From $247 - $589 per traveler.

Graph displaying average flight prices per month

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 $291
IDA
Idaho Falls Regional
CheapestClosest
Average driving time to city center5 min
Flights from $291
Flights from Phoenix (PHX) to Idaho Falls (IDA)
Origin airport
Sky Harbor Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$271
Distance
696 mi

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 $130 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.

 

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA) cost?
Book cheap return fares starting from $577 from Sky Harbor Intl. Airport (PHX) to Idaho Falls Regional Airport (IDA). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving PHX on July 17 2025 and touching down at IDA. The price was last updated on June 30 2025 and has not changed since.
What is the cheapest month to fly from PHX to IDA?
To land a cheap ticket, look for nonstop flights from PHX to IDA taking off in November. You can find a one-way American Airlines flight for $136 leaving on November 22 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 30 2025 and remains unchanged.
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 PHX to IDA?
Fly from PHX to IDA with American Airlines. This carrier currently has the lowest one-way fare for this route, starting from $369. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHX on September 9 2025. Prices were last updated on June 30 2025 and have not changed since.
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.

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*Available to One Key members.