SEA - BOI

$84 Find Cheap Flights from Seattle 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 from Seattle to Boise departing on 8/6. 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

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 in flight searches from Seattle to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Boise, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Seattle to Boise (SEA-BOI)

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

Tue, Aug 12 - Mon, Aug 18
Delta Logo
9:20 pm - 11:50 pmSEA-BOI
1h 30mnonstop
Delta Logo
4:20 pm - 5:00 pmBOI-SEA
1h 40mnonstop
$147Delta
Find Deal
Fri, Aug 15 - Mon, Aug 18
Delta Logo
9:20 pm - 11:50 pmSEA-BOI
1h 30mnonstop
Delta Logo
5:45 am - 6:27 amBOI-SEA
1h 42mnonstop
$157Delta
Find Deal
Thu, Sep 4 - Mon, Sep 15
Southwest Logo
4:10 pm - 12:25 amSEA-BOI
7h 15m2 stops
Southwest Logo
7:00 pm - 11:05 pmBOI-SEA
5h 05m1 stop
$162Southwest
Find Deal
Tue, Aug 12 - Mon, Aug 18
Hawaiian Airlines Logo
4:03 pm - 9:06 pmSEA-BOI
4h 03m1 stop
Hawaiian Airlines Logo
7:12 am - 11:00 amBOI-SEA
4h 48m1 stop
$166Hawaiian Airlines
Find Deal
Fri, Aug 15 - Mon, Aug 18
Hawaiian Airlines Logo
3:45 pm - 6:11 pmSEA-BOI
1h 26mnonstop
Hawaiian Airlines Logo
7:12 am - 11:00 amBOI-SEA
4h 48m1 stop
$167Hawaiian Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Alaska Airlines Logo
3:03 pm - 9:06 pmSEA-BOI
5h 03m1 stop
Alaska Airlines Logo
6:11 pm - 9:00 pmBOI-SEA
3h 49m1 stop
$174Alaska Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Alaska Airlines Logo
9:55 am - 4:48 pmSEA-BOI
5h 53m1 stop
Alaska Airlines Logo
6:11 pm - 9:00 pmBOI-SEA
3h 49m1 stop
$175Alaska Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
United Airlines Logo
9:50 am - 4:40 pmSEA-BOI
5h 50m1 stop
United Airlines Logo
7:15 pm - 12:59 amBOI-SEA
6h 44m1 stop
$217United Airlines
Find Deal
Thu, Jul 31 - Mon, Aug 4
Southwest Logo
2:35 pm - 1:05 amSEA-BOI
9h 30m2 stops
Southwest Logo
10:20 am - 3:00 pmBOI-SEA
5h 40m1 stop
$261Southwest
Find Deal
Thu, Nov 27 - Sun, Nov 30
United Airlines Logo
5:20 pm - 11:28 pmSEA-BOI
5h 08m1 stop
United Airlines Logo
5:00 am - 10:09 amBOI-SEA
6h 09m1 stop
$407United Airlines
Find Deal
Expert advice

Expert advice for your flight from Seattle 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
Alaska Airlines

Alaska Airlines' 20-minute baggage guarantee offers compensation if bags are delayed.


Alaska Airlines' Wine Flies Free program allows free wine case check-in from select airports.

Delta

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


Delta's Sky Priority check-in speeds up the process for premium cabin and elite status passengers.

Read more about Deltaby Stefanie Waldek
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska 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
Stefanie Waldek

Stefanie Waldek

Expert on Delta

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
Useful Info

KAYAK's insights & trends for Seattle to Boise flights

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

Find cheap flights to Boise
Find cheap flights to Boise

Planning a trip from Seattle to Boise? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Seattle to Boise?

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

Your flight ticket price will generally be cheaper if you fly to Boise on a Thursday and more expensive on a Sunday. On your return trip to Seattle, you should consider flying back on a Thursday, and avoid Sundays for better deals.

What is the cheapest month to fly from Seattle to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 from Seattle to Boise is January, where tickets cost $186 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $277 and $267 respectively.

How far in advance should I book a flight from Seattle to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Boise, 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 Seattle to Boise, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
High seasonDecember
Cheapest flight$84
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Seattle to Boise

When to book flights from Seattle to Boise

Are your dates flexible? Find out the best times to travel from Seattle 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Boise

  • Does Seattle Airport have a nursing room?

    A private space with power outlets, rocking chairs, and receptacles is available in the Mother's Room. The USO Mother's Room is also available to military families inside the Kid's Play Area. There are also nursing suites available in the Main Terminal on the Mezzanine Level, near Gate A9, C10, N2, D10, and D23.

  • What directions do I follow when driving from Seattle to Seattle Tacoma Airport?

    Travelers from Seattle can drive through I-5 and take exit 154 B, then head west on State Road 518 until you reach the Seattle Tacoma International Airport exit. Alternatively, you can take State Highway 99 south and keep to the right on Route 509 south until you reach the exit. Finally, follow the Seattle Tacoma Airport exit by turning left onto 518.

  • Can I use public transit from Boise Airport?

    Passengers have the option to board a train for the next part of their journey once they arrive at Boise Airport. Travelers can take a taxi or shuttle from the airport to the Amtrak train station in Downtown Boise, where they can connect by train to several locations in the area. There are also Greyhound and ValleyRide buses from the airport to destinations around Idaho.

  • Which hotels can I find near Boise Airport?

    Inn America Boise is about 0.8 miles from the airport, the Western Vista Inn is 0.6 miles from the airport, and Airport Inn is 1km from the airport. Hotels offer courtesy shuttles that pick up passengers opposite the baggage claim area. Additionally, the Boise Shuttle Service provides transportation to hotels in the surrounding area from the green curb outside the terminal.

  • What is the cheapest flight from Seattle to Boise?

    In the last 3 days, the lowest price for a flight from Seattle to Boise was $84 for a one-way ticket and $147 for a round-trip.

  • Do I need a passport to fly between Seattle and Boise?

    No

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Boise?

    Alaska Airlines, Hawaiian Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Seattle to Boise flight route.

  • Which aircraft models fly most regularly from Seattle to Boise?

    The Embraer 175 is the aircraft model that flies most regularly on the Seattle to Boise flight route.

  • Which airline alliances offer flights from Seattle to Boise?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Boise, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Boise?

    There are nonstop flights from Seattle to Boise on a daily basis.

  • Which is the best airline for flights from Seattle to Boise, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Boise are Alaska Airlines and Delta. With an average price for the route of $236 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $200 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Seattle 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 from Seattle to Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Seattle 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 Seattle 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 to Seattle with another airline. Booking your flights between Seattle and BOI 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 Seattle 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 from Seattle 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 Seattle to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $98 or less one-way and $197 or less round-trip.
  • Travelers can head to Smarte Carte Baggage Storage at Between Carousels 12 and 13, baggage claim level, where they can have their luggage kept as they explore the airport. You can store all types of baggage, including frozen and chilled things. There are also business services like notary and fax available.
  • Passengers can shop at Dufry Duty-Free stores at Gates A, S, and the Central Terminal in Seattle Airport (SEA). You can get some newspapers or magazines at Hudson News sites available round-the-clock at Gates D6, D22, and the Central Terminal near the baggage claim area.
  • There are art installations across Seattle Airport. The Central Terminal has the best of these, featuring a striking mobile that hangs from the ceiling. Some of the artwork is vintage, and tourists adore it, such as the fish swimming along Concourse B's floor.
  • If you are traveling with your furry friend, you can take them to the pet relief space at Boise Airport (BOI) located at the west doors next to baggage claim on the route to the rental car area from the west side of the arrivals area.
  • The Information Center, operated by skilled volunteers called the Boise Airport Beacons, is situated close to the rental car and baggage claim lobbies on the lower-level concourse of the passenger terminal. Travelers can make an inquiry at the desk.

Prefer to fly direct from Seattle to Boise?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Boise Air Term. Gowen Fld Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Boise Air Term. Gowen Fld

Monday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +13 more

Aeromexico, Air France, +14 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

See more direct flights

Direct returns

Boise Air Term. Gowen Fld to Seattle/Tacoma Intl

Monday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +13 more

Aeromexico, Air France, +14 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

See more direct flights

Top 3 airlines serving from Seattle to Boise

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Boise. 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 Seattle 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
8.5Crew
8.1Boarding
7.8Comfort
7.1Entertainment
7.1Food
Airline reviews

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

10.0 ExcellentAnonymous, Jun 2025SEA - BIL
Read more Alaska Airlines reviews

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Delayed. It's not our first flight with them either, it's actually our 3rd and all 3 were delayed by hours each time. It was a myriad of delays. On one flight we boarded after being delayed for a little over an hr, only to be told we were going to sit in the plane for another hour before departing. Once landed, we waited another 40ish min to get to our gate. On another flight, flight was delayed just under 3 hrs but atleast we got to wait it out at the airport terminal. Its just a bad experience overall flying with Alaska Airlines.

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

Very pleasant and the flight felt like it went by quick

All flight entertainment is from your own device and there was an $8 charge to connect. also 1 drink and a small bag of pretzels was all that was given to us. other that that the seats were good and the flight itself was as expected.

It is very bad they do not give you money back

They lost our bag and it took them days to find it. Terrible communication and lots of lies about where it was. Their system hasn’t merged with Hawaiian yet they route people on shared flights with Hawaiian, creating an administrative nightmare.

Major flight delays, it was a 1.5-hour delay. The gate kept changing about 3 times in Seattle. very hectic and chaotic.

More leg room in back seats. Can you require people to smell good on planes? ha ha Staff was great! Plane was comfortable. I enjoyed the movies and TV. Smooth take off and landing.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Both flights were late 2+ hours with ZERO communication from the airlines or their staff. No offers for compensation. WiFi didn’t work for streaming and they said to only use browsing but that didn’t work either. Waste of $$. No drinks only boxed water or apple juice. No snack. One of the worst flight experiences I’ve ever had.

The ticket and bag check in was chaotic at SEATAC. No clear communication or signage for bag drop off.

This was actually an Alaska flight. I was not able to check in online using the Kayak app or the web for Hawaiian or Alaska airlines. So I contacted Hawaiian and they advised that I had to go to the counter when I arrive at the airport. So I waited in line at the Hawaiian counter for 45 minutes. When I got to the ticket agent she advised that I needed to go to the Alaskan Airlines ticket counter. So I went to that counter which thankfully was not busy. I received my boarding pass and then went to security. I arrived at the gate as boarding was beginning. The frustration is that Hawaiian or Kayak should have directed me to the correct ticket counter. When it is “operated by” a average person doesn't know what that means. Kayak app was silent on what action to take when I was unable to check in online and Hawaiian just stated my ticket number and confirmation numbers were invalid. Communication is key and this process could be cleaned up. Thank goodness I am savvy and speak English, I can’t imagine this process for someone who may not be.

If I knew I would be on Alaska Airlines flying back, I never would have bought the ticket. My flight kept getting delayed and Alaska always seems to be late which is why I don’t fly on them.

Good. They changed our gate very late and then when we landed, we had to wait 20 minutes to get off the airplane because another plane was in a slot.

Very nice experience. The boarding however seemed somewhat mixed up, and we were delayed taking off.

Flight was canceled with no voucher of any kind and next available flight was two days later.

Boarding was chaotic. Microphone not working properly and second agent was distracted from task with baggage and late arrivals.

I DID NOT GO TO HAWAII ON HAWAIIAN AIRLINES. YOU DID NOT INFORM ME THAT BY CHOOSING BASIC ECONOMY, I MIGHT BE REQUIRED TO FLY STANDBY. I AM ELDERLY AS WAS MY COMPANION WHO IS ALSO SEVERELY DISABLED AND THERE WOULD BE NO WAY WE COULD TRAVEL ON STANDBY. THEY TOLD ME THAT ALL OF THE BASIC ECONOMY SEATS HAD BEEN SELECTED BY OTHER PASSENGERS AND WE HAD TO PAY AN ADDITIONAL $942 TO GET A SECURED SEAT ON THE PLAN AND, IN SPITE OF THE ADDITIONAL COST, WE WERE NOT ALLOW US TO AMEND OUR TRAVEL PLANS TO EXTEND OUR VACATION. ULTIMATELY, THE FLIGHT WAS DELAYED. WE WERE OFFERED A REFUND IF WE CANCELED OUR TRIP ALTOGETHER WHICH WE DID. IT IS YOUR DUTY TO INFORM YOUR CUSTOMERS OF THE POTENTIAL PROBLEMS THEY MAY FACE, AND YOU DID NOT DO SO. I WILL NOT UTILIZE YOUR SERVICES EVER AGAIN.

It was very pleasant. The staff and crew are very polite.

Everything you need to know for your flight from Seattle to Boise

Information on your arrival and departure airports

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