PHX - IDA

$78 Find Cheap Flights from Phoenix Sky Harbor Airport to Idaho Falls - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sky Harbor Intl to Idaho Falls departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$173
Typical prices: $314-$459
Multiple Airlines
Thu 9/10Mon 9/14
PHX - IDA • 1 stop
Cheapest non-stop
$385
Typical prices: $248-$561
American Airlines
Tue 11/10Wed 11/18
PHX - IDA • Non-stop
Top airlines
Cheapest • from $369 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Avoid delays
Most punctual • 85% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sky Harbor Intl to Idaho Falls (PHX-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sky Harbor Intl to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sky Harbor Intl to Idaho Falls

Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
5:23 pm - 11:50 am
PHX
-
IDA
17h 27m
1 stop
Multiple Airlines Logo
6:21 pm - 10:47 pm
IDA
-
PHX
5h 26m
1 stop
$173Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
9:03 am - 10:47 am
PHX
-
IDA
24h 44m
1 stop
Multiple Airlines Logo
5:33 pm - 11:24 pm
IDA
-
PHX
6h 51m
1 stop
$176Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
10:30 pm - 10:47 am
PHX
-
IDA
11h 17m
1 stop
Multiple Airlines Logo
5:33 pm - 11:24 pm
IDA
-
PHX
6h 51m
1 stop
$178Multiple Airlines
Tue, Nov 10 - Wed, Nov 18
American Airlines Logo
8:16 pm - 10:25 pm
PHX
-
IDA
2h 09mnonstop
American Airlines Logo
6:45 am - 9:13 am
IDA
-
PHX
2h 28mnonstop
$385American Airlines
Tue, Nov 10 - Wed, Nov 18
United Airlines Logo
6:20 am - 1:28 pm
PHX
-
IDA
7h 08m
1 stop
United Airlines Logo
2:35 pm - 9:37 pm
IDA
-
PHX
7h 02m
1 stop
$400United Airlines
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
6:00 am - 1:29 pm
PHX
-
IDA
6h 29m
1 stop
United Airlines Logo
4:04 pm - 8:24 pm
IDA
-
PHX
5h 20m
1 stop
$405United Airlines
Tue, Sep 29 - Sat, Oct 3
Delta Logo
6:00 am - 10:22 pm
PHX
-
IDA
15h 22m
2 stops
Delta Logo
6:00 am - 7:01 pm
IDA
-
PHX
14h 01m
2 stops
$447Delta
Tue, Nov 10 - Wed, Nov 18
American Airlines Logo
5:00 am - 1:05 pm
PHX
-
IDA
8h 05m
1 stop
American Airlines Logo
6:45 am - 9:13 am
IDA
-
PHX
2h 28mnonstop
$449American Airlines
Thu, Dec 17 - Tue, Dec 22
American Airlines Logo
8:07 pm - 10:21 pm
PHX
-
IDA
2h 14mnonstop
American Airlines Logo
7:03 am - 9:24 am
IDA
-
PHX
2h 21mnonstop
$467American Airlines
Thu, Oct 1 - Wed, Oct 7
Delta Logo
7:37 pm - 6:17 pm
PHX
-
IDA
21h 40m
1 stop
Delta Logo
6:56 pm - 10:43 pm
IDA
-
PHX
4h 47m
1 stop
$475Delta
Booking Insights

KAYAK's insights & trends for Sky Harbor Intl to Idaho Falls flights

Get data-powered insights and trends into flights from Sky Harbor Intl to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Phoenix Sky Harbor Intl Airport to Idaho Falls?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Phoenix Sky Harbor Intl Airport to Idaho Falls departing in September.

Flight prices are below average for this route right now.

Flights to Idaho Falls from Phoenix Sky Harbor Intl Airport usually cost between $403 and $456 in September.
The lowest price found in the past 5 days was $173 on Multiple Airlines (Sep 10-Sep 14).

What’s the cheapest day of the week to fly from Phoenix Sky Harbor Airport to Idaho Falls?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Idaho Falls clicked on KAYAK for each day over the last 12 months.

For Phoenix Sky Harbor Airport to Idaho Falls, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Idaho Falls back to Phoenix Sky Harbor Airport, the best deals are generally found on Thursday, with Sunday being the most expensive.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Idaho Falls is May, where tickets cost $291 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $555 and $524 respectively.

Can I save money by flying with a layover from Phoenix Sky Harbor Intl Airport to Idaho Falls?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $476, prices are generally cheapest when you fly direct.

Good to know

Low season

March

Cheapest flight

$78
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Phoenix Sky Harbor Airport to Idaho Falls

When to book flights from Sky Harbor Intl to Idaho Falls

Are your dates flexible? Find out the best times to travel from Sky Harbor Intl to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix Sky Harbor Airport to Idaho Falls flights

  • What is the carry-on policy for flights from Phoenix to Idaho Falls?

    American Airlines allow passengers to board with one carry-on bag and a personal item for free when flying from PHX to IDA. The dimensions of your carry-on bag must not exceed 22 x 14 x 9 inches, have a weight limit of 40 lb, and fit in the airport’s sizer. Your personal item must have a maximum dimension of 18 x 14 x 8 inches and fit under a seat.

  • Which airlines offer accessible services from Phoenix to Idaho Falls?

    United Airlines offers accessible services to people with special needs flying from PHX to IDA. The services include assistance booking, priority check-in, and assistance during boarding, navigation, and deplaning. They provide accessible equipment such as wheelchairs, accessible seats, and wheelchair ramps for those with reduced mobility.

  • Which airlines offer special meal services from Phoenix to Idaho Falls?

    Consider traveling with Delta from PHX to IDA to enjoy unique meal options. Delta provides meals personalized to meet different passengers, including diabetic, vegan, gluten- and lactose-intolerant, and follows religious dietary laws. They also offer kid-friendly meals. You are eligible for these services after notifying the airline at least 48 hours before the departure flight.

  • Can a minor fly unaccompanied from Phoenix to Idaho Falls?

    At a fee, children aged 5 to 12 can travel with Alaska Airlines from PHX to IDA unaccompanied. Those aged from 5 to 7 years are only eligible for direct flights, while those aged from 8 to 12 years can fly with connecting flights. You must check in with your minor at least 90 minutes before the departure flight. You must also provide proof of the child’s age using documents such as a birth certificate or passport. The airline requires the accompanying guardian to provide a government-issued ID and details for the receiving guardian, such as name, contact information, and address.

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Idaho Falls?

    In the last 5 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Idaho Falls was $78 for a one-way ticket and $173 for a round-trip.

  • Do I need a passport to fly between Phoenix Sky Harbor Airport and Idaho Falls?

    A passport is not required to fly from Phoenix Sky Harbor Airport to Idaho Falls.

  • Which airlines offer Wi-Fi service onboard planes from Phoenix Sky Harbor Airport to Idaho Falls?

    Only American Airlines offers inflight Wi-Fi service on the Phoenix Sky Harbor Airport to Idaho Falls flight route.

  • Which aircraft models fly most regularly from Phoenix Sky Harbor Airport to Idaho Falls?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Phoenix Sky Harbor Airport to Idaho Falls flight route.

  • Which airline alliances offer flights from Phoenix Sky Harbor Airport to Idaho Falls?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Phoenix Sky Harbor Airport and Idaho Falls, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Phoenix to Idaho Falls, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to Idaho Falls are Delta and United Airlines. With an average price for the route of $519 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $520 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Phoenix Sky Harbor Airport to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix Sky Harbor Airport to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix Sky Harbor Airport to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Phoenix Sky Harbor Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix Sky Harbor Airport to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Phoenix Sky Harbor Airport with another airline. Booking your flights between Phoenix Sky Harbor Airport and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix Sky Harbor Airport to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Phoenix Sky Harbor Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Phoenix Sky Harbor Intl Airport to Idaho Falls

  • Delta Airlines offer Business- and First-class class flights from Phoenix Sky Harbor International Airport (PHX) to Idaho Falls Regional Airport (IDA). You can enjoy amenities and services such as spacious lie-flat seats, blankets and plush pillows, and access to Delta Sky Club Lounges.
  • IDA serves several cities, including Ammon, Shelley, and Rigby. These cities can be accessed from IDA airport using public transportation. You can use a taxi available on demand to Ammon. You can use a taxi available on demand to Shelley. Furthermore, you can use the Salt Lake Express bus to Rigby, which operates five times daily.
  • All airlines flying from Phoenix to Idaho Falls have layovers en route. Some of the common single layover cities include Salt Lake City (SLC) by Delta, Seattle (SEA) by Alaska Airlines, Denver (DEN) by United Airlines, and Dallas (DFW) by American Airlines.
  • You can carry your pet when flying from PHX to IDA with American Airlines. Your pet must be comfortably fitted inside a small soft-sided collapsible kennel with a maximum dimension of 18 x 11 x 11 inches that can fit under a seat. The combined weight of the pet and kennel must not exceed 20 lb.
  • Consider flying with Delta from PHX to IDA to access family-friendly services to make travel with your children comfortable. The services include pre-boarding for families with young children and in-flight entertainment with kid-friendly content.

Reviews of the top 4 airlines serving from Sky Harbor Intl to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sky Harbor Intl to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8493 reviews
7.2Food
7.8Entertainment
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

8.0 ExcellentMichael, Jul 2026
SEA - SMF
Read more Delta reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

Awful. There was an unexpected delay of nearly three hours because there were not enough flight attendants. I understand this is likely due to FAA regulations; but in that case, Delta should coordinate with smaller airports such as RDU to have extra flight attendants on the ground and "on call". In addition, this was the second 2-hour+ delay to Boston on this route in one week.

I missed the flight because the Minneapolis flight was 49 minutes LATE, and the Boise flight LEFT 24 minutes EARLY!

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

Having to up charge for a seat assignment is not good. Delta can do better

There was no problems, just a little uncomfortable with seats that do not lay back a little

Only not having an assigned seat was an issue. Rest was great

Delta is a premier airline so my expectations are most always met.

Gluten free snack options and meals that offer both gluten free and dairy free.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

Awful, rude staff. Their abrasive comments are unnecessary. Most seek a frictionless experience and will cooperate if you ask. Additional childish bullying of customers is not acceptable or tolerated. We had the same problem with our departure flight. We will never fly United again.

No cooked food. Crew was not friendly and not that helpful

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

A very pleasant flight but it would be greatly improved with wifi to help entertain kids

This is a no frills, get it done, efficient airline. The seat is a lawn chair. You better bring your own entertainment. If you want something other than water you need to pay for it. But they will get you to your destination quickly, on time, and then they will turn the flight around and go right back where they came from. Reliably. Couple times a week tops. If it fits into your schedule, you can’t get there cheaper or faster.

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Allegiant canceled the flight. The flight the next day was full. Allegiant did not provide any compensation besides a refund. Last time on Allegiant.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Actually, for the price, I'm willing to put up with a little discomfort (upright chairs) and at times inconveniences (like any airline), lack of entertainment (I can bring my own). My flight was non stop and smooth. I would fly this route again.

Although there were two delays, they were communicated clearly and the boarding process was expedited. The crew was pleasant and efficient.

I was able to check into my flight through the app and online but had issues getting my boarding pass once I arrived to the airport.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

there are no options s for snack besides cookies would ve nice to have a salty option n

Early morning flight and no food in First Class except a "salmon" box. No thank you. Was informed before take off by Captain that the plane was not serviced before we boarded in Phoenix. How does that happen? Need more frequent additions/turn over on the Entertainment. Thanks

It was the most un-special flight experience in my life.

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

Everything you need to know for your flight from Sky Harbor Intl to Idaho Falls

Information on your arrival and departure airports