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SEA - BOI

Find cheap flights from Seattle to Boise from $57

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 5/28. 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
0 bags
Thu 6/6
Thu 6/13

Search 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
In the last 7 days travelers have searched 43,707,506 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
9:35 am - 7:56 pmSEA-BOI
9h 21m1 stop
9:15 pm - 8:32 amBOI-SEA
12h 17m1 stop
$81Spirit Airlines
Find Deal
Wed, May 29 - Tue, Jun 4
9:28 am - 8:10 pmSEA-BOI
9h 42m1 stop
9:13 pm - 8:32 amBOI-SEA
12h 19m1 stop
$83Spirit Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
9:35 am - 4:30 pmSEA-BOI
5h 55m1 stop
9:13 pm - 8:32 amBOI-SEA
12h 19m1 stop
$84Spirit Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
9:40 pm - 7:56 pmSEA-BOI
21h 16m1 stop
9:15 pm - 8:32 amBOI-SEA
12h 17m1 stop
$97Spirit Airlines
Find Deal
Tue, May 28 - Tue, Jun 4
9:28 am - 8:10 pmSEA-BOI
9h 42m1 stop
6:45 pm - 7:16 pmBOI-SEA
1h 31mnonstop
Wed, Jun 5 - Wed, Jun 12
11:19 am - 1:51 pmSEA-BOI
1h 32mnonstop
7:55 pm - 8:27 pmBOI-SEA
1h 32mnonstop
$157Delta
Find Deal
Tue, May 28 - Wed, Jun 5
2:49 pm - 11:25 amSEA-BOI
19h 36m1 stop
8:46 pm - 8:45 amBOI-SEA
12h 59m1 stop
Sat, May 18 - Wed, May 22
9:34 pm - 11:59 pmSEA-BOI
1h 25mnonstop
4:55 pm - 7:11 pmBOI-SEA
3h 16m1 stop
$166Alaska Airlines
Find Deal
Tue, May 28 - Tue, Jun 4
4:47 pm - 7:14 pmSEA-BOI
1h 27mnonstop
5:52 pm - 6:25 pmBOI-SEA
1h 33mnonstop
$167Delta
Find Deal
Wed, May 29 - Sat, Jun 1
5:35 pm - 8:00 pmSEA-BOI
1h 25mnonstop
4:55 pm - 6:43 pmBOI-SEA
2h 48m1 stop
$176Alaska Airlines
Find Deal
Sat, Jun 1 - Wed, Jun 5

Flights from Seattle to Boise - Travel Insights & Trends

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.

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

The average price of all flights from Seattle to Boise clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Boise on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Seattle to Boise. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best 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 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 September, where tickets cost $158 on average. On the other hand, the most expensive months are May and December, where the average cost of tickets is $266 and $258 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Seattle to Boise, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 70 days before departure.

Which airlines provide the cheapest flights from Seattle to Boise?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Spirit Airlines offered the best one-way deal for that route, at $57. KAYAK users also found Seattle to Boise round-trip flights on Spirit Airlines from $81 and on Delta from $157.

Which airlines fly non-stop between Seattle and Boise?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Boise.
There are 2 airlines that fly nonstop from Seattle to Boise. They are Alaska Airlines and Delta. The cheapest airline for this route is Alaska Airlines, with the best one-way deal found costing $99. On average, the best prices for this route can be found at Delta.

How many flights are there between Seattle and Boise per day?

Each day, there are between 16 and 21 nonstop flights that take off from Seattle and land in Boise, with an average flight time of 1h 27m. The most common departure time is 7:00 am and most flights take off in the afternoon. Each week, there are 132 flights. The most frequent day of departure is Friday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Seattle and Boise?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to Boise take?

The average nonstop flight takes 1h 23m, covering a distance of 398 miles.

What’s the earliest departure time from Seattle to Boise?

Early birds can take the earliest flight from Seattle at 6:50 am and will be landing in Boise at 9:17 am.

What’s the latest departure time from Seattle to Boise?

If you prefer to fly at night, the latest flight from Seattle to Boise jets off at 9:35 pm and lands at 12:07 am.

Good to know

Low season

January

High season

February

Cheapest flight

$57
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 0% lower on average.
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 $57 for a one-way ticket and $81 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, 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 (Enhanced Winglets) 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 $219 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 $199 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.

See more FAQs

Top tips for finding a cheap flight from SEA to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $113 or less one-way and $216 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.
See more tips

Prefer to fly non-stop from Seattle to Boise?

Find which airlines fly direct from Seattle/Tacoma Intl to Air Term. Gowen Fld, which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Boise Air Term. Gowen Fld

Monday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Tuesday

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

Aeromexico, Air France, +14 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Thursday

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

Aeromexico, Air France, +14 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Saturday

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

Aeromexico, Air France, +14 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

See more direct flights

Nonstop returns

Boise Air Term. Gowen Fld to Seattle/Tacoma Intl

Monday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Tuesday

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

Aeromexico, Air France, +14 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Thursday

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

Aeromexico, Air France, +14 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +11 more

Aeromexico, Air France, +12 more

Saturday

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

Aeromexico, Air France, +14 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

See more direct flights
See more direct flights

Top 4 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 9147 reviews
7.3Entertainment
7.3Food
7.9Comfort
8.6Crew
8.2Boarding
Airline reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

6.0 GoodAnonymous, May 2024SEA - HNL
Read more about Alaska Airlines reviews

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

No entertainment, food was cookies & juice,water, soda or coffee.

My baggage was in another flight, anit was delayed for one hour.

The maintenance delay was seemingly handled very poorly... Little to no information was provided to the passengers sitting on board for an extended period of time. On a brighter note, at least the cabin crew (flight attendants) did the best they could. They seemingly were provided very little information with regards to the delay. Unless absolutely beyond my control, I can’t imagine buying a ticket on Alaska airlines again, based on this and a previous experience my wife recently had, along with complaints overheard from other passengers.

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

For it to have left on time! Instead of two hours early with zero notice

Flight kept delayed from morning to late afternoon so I had to make other arrangements

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

Terrible… missed our flight due to ridiculously long time to go thru baggage check-in!

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

Book cheap flights from Seattle to Boise

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Boise found on KAYAK in the last 72 hours.
5/28Tue
1 stopSpirit Airlines
21h 16mSEA-BOI
$57
5/29Wed
1 stopSpirit Airlines
9h 21mSEA-BOI
$61
6/4Tue
nonstopAlaska Airlines
1h 24mSEA-BOI
$79
6/12Wed
1 stopAlaska Airlines
3h 07mSEA-BOI
$88
6/8Sat
nonstopDelta
1h 28mSEA-BOI
$89
7/7Sun
nonstopDelta
1h 36mSEA-BOI
$119
8/7Wed
1 stop
13h 04mSEA-BOI
$139
5/17Fri
2 stops
21h 54mSEA-BOI
$166
6/5Wed
1 stopAmerican Airlines
9h 40mSEA-BOI
$725
6/5Wed
2 stopsAmerican Airlines
14h 31mSEA-BOI
$730

Search by stops

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Last minute flights from Seattle to Boise

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Boise that are departing in the next 10 days.
5/12Sun
multi-stop
21h 30mSEA-BOI
5/22Wed
multi-stop
12h 59mBOI-SEA
$312
5/10Fri
multi-stopSpirit Airlines
21h 45mSEA-BOI
5/14Tue
multi-stopSpirit Airlines
12h 30mBOI-SEA
$330
5/12Sun
nonstopAlaska Airlines
1h 23mSEA-BOI
5/21Tue
nonstopAlaska Airlines
1h 27mBOI-SEA
$382
5/12Sun
nonstopAlaska Airlines
1h 23mSEA-BOI
5/19Sun
nonstopAlaska Airlines
1h 29mBOI-SEA
$432
5/10Fri
nonstopDelta
1h 28mSEA-BOI
5/13Mon
nonstopDelta
1h 33mBOI-SEA
$462
5/10Fri
nonstopDelta
1h 36mSEA-BOI
5/12Sun
nonstopDelta
1h 33mBOI-SEA
$467
5/12Sun
multi-stopUnited Airlines
12h 59mSEA-BOI
5/13Mon
multi-stopUnited Airlines
9h 16mBOI-SEA
$950
5/8Wed
multi-stopUnited Airlines
10h 48mSEA-BOI
5/13Mon
multi-stopUnited Airlines
9h 43mBOI-SEA
$1,030
5/10Fri
multi-stopAmerican Airlines
15h 32mSEA-BOI
5/13Mon
multi-stopAmerican Airlines
28h 35mBOI-SEA
$1,272
5/11Sat
multi-stopAmerican Airlines
10h 04mSEA-BOI
5/12Sun
multi-stopAmerican Airlines
8h 00mBOI-SEA
$1,374

Search by stops

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Seattle - Boise Flights

Departure:

Seattle (undefined)United States

Destination:

Boise (BOI)United States

Return flight deals:

Boise - Seattle

Cabin classes:

$346
$546
$311
$166

Browse destinations:

Compare transportation modes for Seattle to Boise

Average priceAverage duration
Flights$2051h 25m
Buses$9611h 45m