Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

SEA - BOI

Find cheap flights from Seattle to Boise from $80

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 6/10. 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
Tue 6/11
Tue 6/18

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 42,369,914 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
4:47 pm - 7:13 pmSEA-BOI
1h 26mnonstop
7:45 pm - 8:16 pmBOI-SEA
1h 31mnonstop
$157Delta
Find Deal
Wed, Jun 5 - Wed, Jun 12
9:19 pm - 10:04 amSEA-BOI
11h 45m1 stop
9:15 pm - 8:45 amBOI-SEA
12h 30m1 stop
$160Spirit Airlines
Find Deal
Thu, May 30 - Mon, Jun 3
9:40 pm - 7:56 pmSEA-BOI
21h 16m1 stop
8:50 pm - 8:45 amBOI-SEA
12h 55m1 stop
$166Spirit Airlines
Find Deal
Tue, May 28 - Thu, May 30
11:19 am - 1:50 pmSEA-BOI
1h 31mnonstop
7:55 pm - 8:27 pmBOI-SEA
1h 32mnonstop
$167Delta
Find Deal
Sat, Jun 1 - Wed, Jun 5
9:19 pm - 10:04 amSEA-BOI
11h 45m1 stop
8:40 pm - 9:11 pmBOI-SEA
1h 31mnonstop
Thu, May 30 - Wed, Jun 5
9:40 pm - 4:30 pmSEA-BOI
17h 50m1 stop
9:15 pm - 8:32 amBOI-SEA
12h 17m1 stop
$171Spirit Airlines
Find Deal
Wed, May 29 - Tue, Jun 4
3:40 pm - 6:05 pmSEA-BOI
1h 25mnonstop
7:35 am - 10:23 amBOI-SEA
3h 48m1 stop
$176Alaska Airlines
Find Deal
Sat, Jun 1 - Tue, Jun 4
8:35 pm - 11:00 pmSEA-BOI
1h 25mnonstop
5:15 pm - 5:46 pmBOI-SEA
1h 31mnonstop
$217Alaska Airlines
Find Deal
Sun, Jun 9 - Tue, Jun 11
9:25 am - 4:13 pmSEA-BOI
5h 48m1 stop
10:25 am - 12:52 amBOI-SEA
15h 27m2 stops
$475United Airlines
Find Deal
Thu, Jul 4 - Fri, Jul 5
7:16 am - 4:13 pmSEA-BOI
7h 57m1 stop
7:05 pm - 10:35 pmBOI-SEA
28h 30m3 stops
$498United Airlines
Find Deal
Thu, Jul 4 - Fri, Jul 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 December and May, where the average cost of tickets is $258 and $256 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 $80. KAYAK users also found Seattle to Boise round-trip flights on Delta from $157 and on Spirit Airlines from $160.

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 19 and 24 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 4:00 pm and most flights take off in the afternoon. Each week, there are 148 flights. The most frequent day of departure is Wednesday, 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 24m, 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 7:05 am and will be landing in Boise at 9:29 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

June

Cheapest flight

$80
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 8% 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 $80 for a one-way ticket and $157 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 $223 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 9152 reviews
8.2Boarding
7.3Entertainment
7.9Comfort
8.6Crew
7.3Food
Airline reviews

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

10.0 ExcellentAnnette, May 2024SEA - DTW
Read more about Alaska Airlines reviews

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

It was a very short flight. No snack or drink. The steward stayed seated the whole time. The plane was comfortable. Boarding in Pullman was a breeze, only 1 gate. I would definitely fly thru there again.

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

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.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

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.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

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.

Arrived 3 hours early and never made it past baggage drop

Flight delayed then canceled! I will NEVER fly Spirit Airlines again and will tell all my friends!

Absolutely terrible. The boarding process had zero organization. Mobs of people trying to board. People were climbing over my child's stroller with her in it. No families were boarded first. Boarding was delayed with no reasoning or notification that it would be late. We were then stuck on the plane for 45 minutes after landing. Then waited over two hours for our luggage. There was zero communication with the travelers. Never have I experienced such I professionalism and disgrace of others. Extremely disappointed.

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 😤😤😤

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.
6/10Mon
1 stopSpirit Airlines
8h 01mSEA-BOI
$80
7/10Wed
1 stopSpirit Airlines
6h 05mSEA-BOI
$98
6/10Mon
nonstopDelta
1h 25mSEA-BOI
$99
6/10Mon
1 stopAlaska Airlines
5h 33mSEA-BOI
$108
8/10Sat
nonstopDelta
1h 34mSEA-BOI
$119
8/9Fri
1 stopAlaska Airlines
4h 30mSEA-BOI
$128
7/13Sat
1 stop
13h 10mSEA-BOI
$139
7/10Wed
2 stops
17h 08mSEA-BOI
$141
6/10Mon
1 stopAmerican Airlines
8h 46mSEA-BOI
$726
6/10Mon
2 stopsAmerican Airlines
14h 31mSEA-BOI
$731

Search by stops

Search by airline

Search by price

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.
5/17Fri
multi-stopSpirit Airlines
21h 45mSEA-BOI
5/19Sun
multi-stopSpirit Airlines
12h 55mBOI-SEA
$345
5/16Thu
nonstopAlaska Airlines
1h 25mSEA-BOI
6/16Sun
nonstopAlaska Airlines
1h 29mBOI-SEA
$352
5/16Thu
multi-stopAlaska Airlines
5h 38mSEA-BOI
6/16Sun
nonstopAlaska Airlines
1h 29mBOI-SEA
$361
5/17Fri
multi-stopSpirit Airlines
21h 45mSEA-BOI
5/20Mon
multi-stopSpirit Airlines
12h 30mBOI-SEA
$385
5/17Fri
nonstopDelta
1h 27mSEA-BOI
5/19Sun
nonstopDelta
1h 34mBOI-SEA
$397
5/13Mon
multi-stopSpirit Airlines
9h 50mSEA-BOI
5/15Wed
multi-stopSpirit Airlines
12h 59mBOI-SEA
$410
5/13Mon
nonstop
1h 27mSEA-BOI
5/15Wed
multi-stop
12h 59mBOI-SEA
$428
5/16Thu
nonstopDelta
1h 32mSEA-BOI
5/21Tue
nonstopDelta
1h 41mBOI-SEA
$462
5/13Mon
multi-stopAmerican Airlines
15h 32mSEA-BOI
5/14Tue
multi-stopAmerican Airlines
28h 35mBOI-SEA
$1,343
5/15Wed
multi-stopAmerican Airlines
10h 30mSEA-BOI
6/16Sun
multi-stopAmerican Airlines
11h 24mBOI-SEA
$1,448

Search by stops

Search by airline

Search by price

Seattle - Boise Flights

Departure:

Seattle (undefined)United States

Destination:

Boise (BOI)United States

Return flight deals:

Boise - Seattle

Cabin classes:

$346
$546
$346
$156

Browse destinations:

Compare transportation modes for Seattle to Boise

Average priceAverage duration
Flights$2051h 25m
Buses$11211h 45m