BOI

$32 Find Cheap Flights to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boise departing on 1/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise
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Everything you should know

Cheapest round-trip
$66
Overall average: $249
Frontier
Mon 1/12Sun 1/18
DEN - BOI • Non-stop
Cheapest non-stop
$93
Typical prices: $177-$373
Frontier
Fri 1/9Mon 1/12
DEN - BOI • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's Comfort Plus provides extra legroom to Boise.
United's Priority Boarding helps secure overhead space.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Most flights • 311 per week
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DEN-BOI
Cheapest
SEA-BOI
Most popular
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 30% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights to Boise

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

Mon, Jan 12 - Sun, Jan 18
Frontier Logo
9:10 am - 11:17 am
DEN
-
BOI
2h 07mnonstop
Frontier Logo
2:01 pm - 4:01 pm
BOI
-
DEN
2h 00mnonstop
$66Frontier
Fri, Jan 9 - Thu, Jan 15
Frontier Logo
9:10 am - 11:17 am
DEN
-
BOI
2h 07mnonstop
Frontier Logo
2:19 pm - 4:19 pm
BOI
-
DEN
2h 00mnonstop
$86Frontier
Fri, Feb 20 - Mon, Feb 23
Delta Logo
7:15 am - 9:50 am
SEA
-
BOI
1h 35mnonstop
Delta Logo
5:40 am - 6:34 am
BOI
-
SEA
1h 54mnonstop
$99Delta
Mon, Feb 16 - Sat, Feb 21
Alaska Airlines Logo
8:10 pm - 10:40 pm
SEA
-
BOI
1h 30mnonstop
Alaska Airlines Logo
6:28 am - 7:13 am
BOI
-
SEA
1h 45mnonstop
$118Alaska Airlines
Mon, Feb 16 - Sun, Feb 22
Alaska Airlines Logo
8:10 pm - 10:40 pm
SEA
-
BOI
1h 30mnonstop
Alaska Airlines Logo
6:28 am - 7:13 am
BOI
-
SEA
1h 45mnonstop
$137Alaska Airlines
Tue, Feb 17 - Wed, Feb 18
Delta Logo
1:50 pm - 4:15 pm
SEA
-
BOI
1h 25mnonstop
Delta Logo
10:41 am - 11:35 am
BOI
-
SEA
1h 54mnonstop
$139Delta
Mon, Jan 12 - Sat, Jan 17
Southwest Logo
12:45 pm - 8:45 pm
SEA
-
BOI
7h 00m1 stop
Southwest Logo
1:45 pm - 9:10 pm
BOI
-
SEA
8h 25m1 stop
$151Southwest
Wed, Mar 4 - Mon, Mar 9
United Airlines Logo
12:55 pm - 9:32 pm
SAN
-
BOI
7h 37m1 stop
United Airlines Logo
7:07 am - 10:22 am
BOI
-
SAN
4h 15m1 stop
$169United Airlines
Tue, Jan 13 - Tue, Jan 20
Southwest Logo
2:15 pm - 8:45 pm
BUR
-
BOI
5h 30m1 stop
Southwest Logo
7:05 am - 12:05 pm
BOI
-
BUR
6h 00m1 stop
$177Southwest
Fri, Jan 9 - Sun, Jan 11
United Airlines Logo
4:15 pm - 11:48 pm
LAX
-
BOI
6h 33m1 stop
United Airlines Logo
10:15 am - 11:51 am
BOI
-
LAX
2h 36mnonstop
$187United Airlines
Booking Insights

KAYAK's insights & trends for flights to Boise

Get data-powered insights and trends for flights to Boise to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Boise?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The flight route Seattle to Boise was the most popular route on KAYAK over the last 3 days. A return flight could be found for $99. Also in the last 3 days, Denver was the most budget-friendly place to find a flight to Boise with one-way tickets at $32 and $66 round-trip.

How much is a flight to Boise?

The average and cheapest price for all round-trip flights to Boise from each origin found by users searching on KAYAK in the last month.

On average, a flight to Boise costs $259. The cheapest price found on KAYAK in the last 2 weeks cost $32 and departed from Denver. The most popular routes on KAYAK are Denver to Boise which costs $181 on average, and Seattle to Boise, which costs $237 on average.

See prices from:

What is the cheapest month to fly to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Boise, 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 to Boise is January, where tickets cost $262 on average for one-way flights. On the other hand, the most expensive months are December and November, where the average cost of tickets from the United States is $562 and $503 respectively. For return trips, the best month to travel is October with an average price of $319.

What is a good deal for flights to Boise?

If you’re looking for cheap airfare to Boise, 25% of our users found tickets to Boise for the following prices or less: From San Diego $78 one-way - $197 round-trip, from Phoenix Sky Harbor Intl Airport $105 one-way - $235 round-trip, from Santa Ana $134 one-way - $282 round-trip.

Expert advice

Expert advice for your flight to Boise

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Delta

Delta's Comfort Plus offers up to three inches more legroom than Main Cabin.


Delta offers free Wi-Fi for SkyMiles members on domestic flights.

Alaska Airlines

Alaska Airlines offers a 20-minute baggage guarantee or 2,500 bonus miles if delayed.


Mileage Plan members can check a case of wine for free from select airports.

United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


United offers Priority Boarding for Zone 2, avoiding overhead bin space issues.

American Airlines

American's Main Cabin Extra offers early boarding and complimentary drinks for a fee.


American offers 20 minutes of free Wi-Fi by watching a short advertisement.

Allegiant Air

Allegiant's Legroom+ offers extra space in exit rows on select routes.


Allegiant's Trip Flex allows one free change or cancellation for a fee.

Spirit Airlines

Spirit's Big Front Seat offers 20-inch width and 11” more legroom for a fee.


Spirit's Wi-Fi offers gate-to-gate connectivity, with browsing and streaming packages available.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez

Joe Cortez

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Read more

Good to know - Book Cheap Boise Plane Tickets

Low seasonJanuary
Cheapest flight$32
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Denver to Boise

When to book flights to Boise

Are your dates flexible? Find out the best times to travel to Boise 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. The information is for flights to Boise based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Boise flights

  • What is the cheapest flight to Boise?

    The flight route Seattle to Boise was the most popular route on KAYAK over the last 3 days. A return flight could be found for $99. Also in the last 3 days, Denver was the most budget-friendly place to find a flight to Boise with one-way tickets at $32 and $66 round-trip.

  • How far is Boise Air Term. Gowen Fld Airport from central Boise?

    The distance between Boise Air Term. Gowen Fld Airport and downtown Boise is 3 miles.

  • What is the name of Boise’s airport?

    Boise is served by Boise Air Term. Gowen Fld Airport, also commonly referred to as Air Term Gowen Fld, Air Term. Gowen Fld, or Boise. The airport code is BOI.

  • How much is a flight to Boise?

    On average, a flight to Boise costs $259. The cheapest price found on KAYAK in the last 2 weeks cost $32 and departed from Denver Intl Airport.

  • What is the cheapest day to fly to Boise?

    Based on KAYAK data, the cheapest day to fly to Boise is Friday where tickets can be as cheap as $338. On the other hand, the most expensive day to fly is Sunday, where prices are $443 on average.

  • How does KAYAK find such low prices on flights to Boise?

    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 to Boise.

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

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

  • What is the Hacker Fare option on flights to Boise?

    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 Boise 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 to Boise?

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

  • What is the cheapest time of day to fly to Boise?

    The cheapest time of day to fly to Boise is generally at night, when flights cost $410 on average. The most expensive time of day to fly to Boise is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $684.

Top tips for finding cheap flights to Boise

  • Looking for cheap airfare to Boise? 25% of our users found round-trip tickets to Boise for the following prices or less: From San Diego $137, from Phoenix Sky Harbor Intl $170, from Chicago O'Hare Intl $326
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boise flight deals.

Reviews of the top 5 airlines flying to Boise

 
See real verified KAYAK customer reviews for airlines flying to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Boise. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Boise? 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.
8.0
Alaska AirlinesOverall score based on 11477 reviews
7.1Food
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
Airline reviews

I don’t think Alaska coordinates with Kayak. I did not get a “check-in” email inviting me to check in 24 hours in advance. Had to wait 20+ minutes to get a wheel chair.

8.0 ExcellentAnonymous, Dec 2025
JFK - SFO
Read more Alaska Airlines reviews

I don’t think Alaska coordinates with Kayak. I did not get a “check-in” email inviting me to check in 24 hours in advance. Had to wait 20+ minutes to get a wheel chair.

Alaska Airlines has horrible customer service. After sitting in a packed airplane for over an hour, they decided to cancel our flight and had us deplane. Instead of helping us nearby, we had to ride two trains (in Seattle Airport), from the S-Gates to the C-Gates; only to stand in a line for 3 and a half hours. Throughout the 3 hours, there was often 1 agent at the customer service counter to help the passengers trying to get information and accommodation on a flight that they cancelled. Do better!

The plane was delayed which was annoying. No seat back screens is a bummer. Staff if great

I got my seat changed last minute so a parent coumd sit with their child wich i found out was a teenager

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

Poor, the last leg of our trip was cancelled and we didn't know about it until we arrived at the airport. Another flight on the same airline was not available until three days later which would have ruined our vacation. Luckily we were able to get re-blooked on another airline after spending hours at the airport.

I wish you would have just canceled the Saturday flight from sea to rdd on Dec 13. the diversion cost me more time and money than if I had just rebooked to Sacramento. It was a huge headache and cost.

The delays were awful and the constant gate changes were annoying and the forceful bag checking was rude.

The flight attendants were excellent and I was in the back of the plane. Much much better than recent JetBlue experiences on that route and better than Delta on that route.

I’m not sure there is anything that can be improved, even the cost was fantastic.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

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Everything you need to know for your flight to Boise

Flights with popular airlines flying to Boise

Flights from the other most popular airlines that fly from the United States to Boise according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.