$82 Find Cheap Flights from Phoenix to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Idaho departing on 8/26. 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.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Idaho.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Idaho.
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Flight Deals

Book Cheap Phoenix to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Idaho 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 Phoenix to Idaho

Thu, Aug 27 - Mon, Aug 31
Multiple Airlines Logo
10:27 pm - 12:00 pm
PHX
-
TWF
12h 33m
1 stop
Multiple Airlines Logo
1:45 pm - 11:24 am
TWF
-
PHX
22h 39m
1 stop
$185Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
9:58 pm - 4:05 pm
PHX
-
IDA
17h 07m
1 stop
Multiple Airlines Logo
10:54 pm - 12:59 pm
IDA
-
PHX
15h 05m
1 stop
$200Multiple Airlines
Sat, Sep 19 - Wed, Sep 23
Alaska Airlines Logo
7:37 pm - 10:45 pm
PHX
-
BOI
2h 08mnonstop
Alaska Airlines Logo
6:49 pm - 10:27 pm
BOI
-
PHX
4h 38m
1 stop
$247Alaska Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
7:26 pm - 10:40 pm
PHX
-
BOI
2h 14mnonstop
American Airlines Logo
8:01 am - 9:23 am
BOI
-
PHX
2h 22mnonstop
$248American Airlines
Mon, Sep 7 - Tue, Sep 8
Delta Logo
7:20 pm - 11:59 pm
PHX
-
BOI
3h 39m
1 stop
Delta Logo
5:45 pm - 10:45 pm
BOI
-
PHX
6h 00m
1 stop
$249Delta
Thu, Sep 3 - Tue, Sep 8
Alaska Airlines Logo
5:30 pm - 8:42 pm
PHX
-
BOI
2h 12mnonstop
Alaska Airlines Logo
5:42 pm - 6:55 pm
BOI
-
PHX
2h 13mnonstop
$250Alaska Airlines
Fri, Aug 7 - Thu, Aug 13
Southwest Logo
8:00 am - 3:05 pm
PHX
-
BOI
6h 05m
1 stop
Southwest Logo
4:55 pm - 6:10 pm
BOI
-
PHX
2h 15mnonstop
$252Southwest
Sat, Aug 8 - Sat, Aug 15
Southwest Logo
1:25 pm - 10:00 pm
PHX
-
BOI
7h 35m
2 stops
Southwest Logo
1:50 pm - 8:00 pm
BOI
-
PHX
7h 10m
2 stops
$253Southwest
Thu, Aug 27 - Sun, Aug 30
Delta Logo
5:10 pm - 11:59 pm
PHX
-
BOI
5h 49m
1 stop
Delta Logo
6:00 am - 8:44 am
BOI
-
PHX
3h 44m
1 stop
$258Delta
Wed, Jul 15 - Tue, Jul 21
American Airlines Logo
8:41 pm - 11:17 pm
PHX
-
GEG
2h 36mnonstop
American Airlines Logo
6:30 am - 9:14 am
GEG
-
PHX
2h 44mnonstop
$314American Airlines
Booking Insights

KAYAK's insights & trends for Phoenix to Idaho flights

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

How much is a round-trip flight from Phoenix to Idaho?

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 to Idaho departing in September.

What is the cheapest Phoenix to Idaho flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Idaho from Phoenix found in the last 5 days was to Idaho Falls, at $110 round-trip. The most popular route is from Phoenix Sky Harbor Intl Airport (PHX) to Boise (BOI), and the cheapest round-trip airline ticket found on this route in the last 5 days was $267.

What is the cheapest time of day to fly to Idaho?

The average price for all round-trip flights from Phoenix to Idaho depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Idaho is generally in the evening, when round-trip flights cost $251 on average. Morning departures are around 11% more expensive than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $285.

What is the cheapest month to fly from Phoenix to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix to Idaho, 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 to Idaho is July, when tickets cost $63 (return) on average. On the other hand, the most expensive months are March and April, when the average cost of round-trip tickets is $154 and $148 respectively.

What’s the cheapest day of the week to fly from Phoenix to Idaho?

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

When flying from Phoenix to Idaho, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Phoenix, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Phoenix to Idaho?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix to Idaho, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix to Idaho, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Cheapest flight$82
Flight from Phoenix Sky Harbor Airport to Spokane

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Phoenix to Idaho?

    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 to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Phoenix to Idaho 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 to Idaho?

    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 from Phoenix to Idaho with an airline and back with another airline.

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

    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 from Phoenix to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Phoenix to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Idaho. 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 Phoenix to Idaho? 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.
7.9
Alaska AirlinesOverall score based on 12480 reviews
7.0Food
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
Airline reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

6.0 GoodAnonymous, May 2026
PDX - BOI
Read more Alaska Airlines reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

The crew was great and everything went smoothly coming and going.

onboard snack was pretzels, but the FA was super nice when my neighbor asked for cookies instead and also brought some for me. :)

No outlets, plugs, way to charge the phone or service and no food on one leg o the trip, but other than that, great. Loved WIFI, the flight, the crew, the pilots, the schedule, etc. Great job. My new favorite airline!

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

It was fine. I upgraded to premium economy & lived the extra legroom. Unfortunately, I was seated next to a man who sniffled A LOT during the flight and had his earphones on so loud that I could hear the music sitting next to him!

My seat and tray were filthy. Someone’s used straw was in the seat pocket and there were coffee stains and food crumbs on the tray table

Flight was scheduled to leave at 6a and delayed for 5 hours due to “mechanical” issues. Everyone else on the flight received an email voucher for $24 of food for the delay, except for our group. Also the carry on luggage bins were full and the crew requested that everyone to pass their carry ons back up to the front while everyone was still standing. They gave no other direction and kept rushing the process. After all bags were sent up, they then asked for seat #s to go with each bag… They should have probably had everyone get to their sits and then pass the bags up in a controlled process.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

The seats were not very comfortable and there were no TV screens. Boarding was pretty fast because there were so few people on such a small plane and I appreciated that they still gave us our snack and drinks, however I really wish they would come up with a good gluten-free snack.

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

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

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.

I would have liked vegetarian and gluten free options for evening dinner time flight. I would have like a pillow on the international overnight flight . The veg wrap and oaten desert on the international flight was good

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Everything you need to know for your flight from Phoenix to Idaho

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.