BOI

$38 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 10/24. 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

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

Fri, Oct 3 - Sun, Oct 5
Frontier Logo
9:38 am - 11:37 amDEN-BOI
1h 59mnonstop
Frontier Logo
12:22 pm - 2:45 pmBOI-DEN
2h 23mnonstop
$73Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
9:38 am - 11:37 amDEN-BOI
1h 59mnonstop
Frontier Logo
12:22 pm - 2:45 pmBOI-DEN
2h 23mnonstop
$74Frontier
Find Deal
Wed, Oct 22 - Sat, Oct 25
Southwest Logo
10:30 am - 1:45 pmSAN-BOI
2h 15mnonstop
Southwest Logo
6:45 am - 8:00 amBOI-SAN
2h 15mnonstop
$89Southwest
Find Deal
Wed, Oct 22 - Sat, Oct 25
Southwest Logo
10:30 am - 1:45 pmSAN-BOI
2h 15mnonstop
Southwest Logo
2:15 pm - 5:20 pmBOI-SAN
4h 05m1 stop
$99Southwest
Find Deal
Wed, Oct 15 - Wed, Oct 22
Alaska Airlines Logo
7:50 pm - 11:22 pmSAN-BOI
2h 32mnonstop
Alaska Airlines Logo
7:13 am - 8:45 amBOI-SAN
2h 32mnonstop
$103Alaska Airlines
Find Deal
Sat, Oct 18 - Wed, Oct 22
Alaska Airlines Logo
7:50 pm - 11:22 pmSAN-BOI
2h 32mnonstop
Alaska Airlines Logo
7:10 pm - 8:49 pmBOI-SAN
2h 39mnonstop
$120Alaska Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
United Airlines Logo
11:34 am - 1:33 pmDEN-BOI
1h 59mnonstop
United Airlines Logo
5:39 pm - 7:40 pmBOI-DEN
2h 01mnonstop
$133United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Delta Logo
5:45 am - 10:48 amDEN-BOI
5h 03m1 stop
Delta Logo
5:55 pm - 10:25 pmBOI-DEN
4h 30m1 stop
$137Delta
Find Deal
Wed, Oct 1 - Sun, Oct 5
Delta Logo
3:40 pm - 6:16 pmSEA-BOI
1h 36mnonstop
Delta Logo
11:00 am - 11:45 amBOI-SEA
1h 45mnonstop
$137Delta
Find Deal
Sat, Oct 11 - Sat, Oct 18
United Airlines Logo
8:42 am - 4:58 pmSEA-BOI
7h 16m1 stop
United Airlines Logo
7:45 am - 2:24 pmBOI-SEA
7h 39m1 stop
$177United Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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 • 294 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
LAX-BOI
Most popular
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 26% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$73
Overall average: $302
Frontier
Fri 10/3Sun 10/5
DEN - BOI • Non-stop
Cheapest one-way
$38
Typical prices: $138-282
Frontier
Fri 10/24
DEN - BOI • Non-stop
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!

Expert advice for your flight to Boise

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

Read more about Deltaby Stefanie Waldek
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
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.

In the last 3 days, the cheapest flight deal to Boise was found on the route from Denver, at $73 return. The most popular connection is from Los Angeles to Boise and KAYAK users have found round-trip deals for as low as $193 in the last 3 days.

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.

A flight to Boise costs $246 on average. The cheapest price found on KAYAK in the last 2 weeks cost $34 and departed from Las Vegas. The most popular routes on KAYAK are Seattle to Boise which costs $218 on average, and Portland to Boise, which costs $220 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 $352 on average for return flights. On the other hand, the most expensive months are December and November, where the average cost of tickets from the United States is $735 and $526 respectively. For one-way flights, the best month to travel is April with an average price of $281.

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 Santa Ana $166 round-trip, from Portland $166 round-trip, from Phoenix Sky Harbor Intl Airport $167 round-trip.

Good to know - Book Cheap Boise Plane Tickets

Low seasonJanuary
Cheapest flight$38
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 31% increase in price.
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?

    In the last 3 days, the cheapest flight deal to Boise was found on the route from Denver, at $73 return. The most popular connection is from Los Angeles to Boise and KAYAK users have found round-trip deals for as low as $193 in the last 3 days.

  • 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 $246. The cheapest price found on KAYAK in the last 2 weeks cost $34 and departed from Las Vegas Harry Reid 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 round-trip tickets can be as cheap as $343. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $436 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 round-trip 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 Phoenix Sky Harbor Intl $123, from San Diego $142, from Chicago O'Hare Intl $225
  • 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 10000 reviews
7.0Entertainment
7.8Comfort
8.5Crew
8.1Boarding
7.1Food
Airline reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

2.0 MediocreAnonymous, Sep 2025BWI - SEA
Read more Alaska Airlines reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

No Free Wifi and the flight was a tad late.

The plane was clean. They got us to the destination. It was very difficult to hear the announcements at the gate. The person was speaking way too quickly, and the sound system did not carry to all parts of the seating area at the gate. The flight left more than an hour late, which left many of the passengers missing connections.

Awesome. Great flight. Super nice people and I like the extra space

The first leg of the trip was excellent. Lovely flight attendants and comfortable plane. The second leg left a lot to be desired. The flight attendant was rude when I asked for a Diet Coke, the boarding required quite a long walk and the plane was crammed and uncomfortable.

Flight was delayed as it always is with Alaska airlines. Particularly to smaller airports. No AC on the plane so it was miserably hot.

Website could be better with faster access to specific flight information and boarding pass once reservation is made. Not a fan of no seat selection on line. I had to consult gate agent each time to change seats on flights with lots of open seats. This cannot possibly be cost effective for airline. On plus side, Alaska seat legroom seemed larger than American. ns

The flights left both airports on schedule. The flight from Idaho Falls to Seattle was a typical commuter trip. The flight from Seattle to Maui was not good: It was too long for a flight in a single-aisle plane and too cramped. I kept asking myself if I would ever visit Maui again if airlines continue to run this long flight like a typical short commuter flight. I am not looking forward to the trip home.

The chicken salad was very small, the lettuce was wilted and there was no flavor. The hamburger was excellent.

I appreciated that the staff went out of the way to make sure I was taken care of.

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

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Flights with popular airlines flying to Boise

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