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150 € Cheap Flights from Boise to Seattle / Tacoma International

Compare Boise to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Boise to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Seattle / Tacoma International Airport? If you want to travel next month, return fares start from 150 €. Find the lowest prices on one-way and return tickets right here.
Seattle.150 € per passenger.Departing Tue, 2 Jun, returning Tue, 9 Jun.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Tue, 2 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 9 Jun, arriving in Boise.Price includes taxes and charges.From 150 €, select.
Seattle.151 € per passenger.Departing Wed, 20 May, returning Wed, 27 May.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Wed, 20 May, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 27 May, arriving in Boise.Price includes taxes and charges.From 151 €, select.
Seattle.151 € per passenger.Departing Sat, 30 May, returning Sat, 6 Jun.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Sat, 30 May, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Sat, 6 Jun, arriving in Boise.Price includes taxes and charges.From 151 €, select.
Seattle.167 € per passenger.Departing Wed, 12 Aug, returning Wed, 19 Aug.Return flight with United.Outbound indirect flight with United, departs from Boise on Wed, 12 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 19 Aug, arriving in Boise.Price includes taxes and charges.From 167 €, select.
Seattle.214 € per passenger.Departing Tue, 15 Sep, returning Thu, 17 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Boise on Tue, 15 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Thu, 17 Sep, arriving in Boise.Price includes taxes and charges.From 214 €, select.
Seattle.215 € per passenger.Departing Fri, 5 Jun, returning Sun, 5 Jul.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Fri, 5 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Sun, 5 Jul, arriving in Boise.Price includes taxes and charges.From 215 €, select.
Seattle.228 € per passenger.Departing Mon, 31 Aug, returning Wed, 9 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Boise on Mon, 31 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Southwest Airlines, departs from Seattle / Tacoma International on Wed, 9 Sep, arriving in Boise.Price includes taxes and charges.From 228 €, select.
Seattle.230 € per passenger.Departing Sun, 26 Jul, returning Sat, 1 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Sun, 26 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Sat, 1 Aug, arriving in Boise.Price includes taxes and charges.From 230 €, select.
Seattle.244 € per passenger.Departing Wed, 12 Aug, returning Wed, 19 Aug.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Wed, 12 Aug, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 19 Aug, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Fri, 4 Sep, returning Sat, 12 Sep.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Fri, 4 Sep, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Sat, 12 Sep, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Wed, 11 Nov, returning Mon, 16 Nov.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Wed, 11 Nov, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Mon, 16 Nov, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Tue, 21 Jul, returning Tue, 4 Aug.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Tue, 21 Jul, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 4 Aug, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Tue, 24 Nov, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 1 Dec, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Fri, 23 Oct, returning Sun, 25 Oct.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Fri, 23 Oct, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Sun, 25 Oct, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.244 € per passenger.Departing Mon, 13 Jul, returning Mon, 20 Jul.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Mon, 13 Jul, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Mon, 20 Jul, arriving in Boise.Price includes taxes and charges.From 244 €, select.
Seattle.245 € per passenger.Departing Sun, 20 Dec, returning Sun, 10 Jan.Return flight with Delta.Outbound direct flight with Delta departs from Boise on Sun, 20 Dec, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departs from Seattle / Tacoma International on Sun, 10 Jan, arriving in Boise.Price includes taxes and charges.From 245 €, select.

Find the cheapest month to fly from Boise to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Seattle / Tacoma International flights are currently cheapest in June.
May
from 151 €
Jun
from 150 €
Jul
from 244 €
Aug
from 167 €
Sep
from 214 €
Oct
from 244 €
Nov
from 244 €
Dec
from 261 €
Jan
Find prices
Feb
from 245 €
Mar
Find prices
Apr
Find prices

Direct flights from Boise to Seattle / Tacoma International

Boise to Seattle / Tacoma International: Alternative routes

Compare routes from Boise to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Seattle Lake Union SPB

2km from central Seattle
Closest
Search flights

Seattle Boeing Fld

11km from central Seattle
from 2.015 €
Search flights

Seattle / Tacoma International

20km from central Seattle
Cheapest
from 150 €
Search flights

Paine Field

33km from central Seattle
from 386 €
Search flights

Boise to Seattle: Flight information

The things to know before you go.
Cheapest flight found150 €
Cheapest month to flyJune
Average flight time1 hr, 44 mins
Most popular airlineAlaska Airlines
Average flights per week402

Finding cheap flights from Boise to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Boise to Seattle / Tacoma International is 150 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 44 minutes is the average flight time from Boise to Seattle / Tacoma International.
Alaska Airlines, SkyWest Airlines and Horizon Air fly direct from Boise to Seattle / Tacoma International.
As of May 2026, there are 402 flights per week flying from Boise to Seattle / Tacoma International.
The cheapest month to fly from Boise to Seattle / Tacoma International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Seattle / Tacoma International Airport on Tuesday, 2 June 2026.
Yes – the average flight time is 1 hour and 44 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Seattle / Tacoma International.

Flying from Boise Air Terminal (Gowen Field) Airport (BOI) to Seattle-Tacoma International Airport (SEA): what you need to know

  • The average length of a direct flight from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport is 1 hour 40 minutes.

  • Seattle is one hour behind Boise and follows the UTC-7 timezone.

  • Choose from 129 weekly Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport flights. The 05:30 departure with Alaska Airlines is the earliest you can take. Alaska Airlines operates the latest service of the day at 20:59.

  • Your BOI to SEA flight won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • You can expect longer queues in popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.

  • Alaska Airlines is your gateway to discovering Seattle (and perhaps some other great parts of United States!). Browse the direct flights from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport offered by this airline.

  • The airline that serves the most passengers on this route is Alaska Airlines.

  • Alaska Airlines is a leader in on-time performance for BOI to SEA flights, with 84.98% of services arriving as scheduled.

  • Consider adding a stopover when booking your ticket from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport. Simply uncheck 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Here are some options between BOI and SEA:

    • Salt Lake City International Airport

    • Sacramento International Airport

    • Metropolitan Oakland International Airport

How to find the cheapest flights from Boise Air Terminal (Gowen Field) Airport (BOI) to Seattle-Tacoma International Airport (SEA)

  • Currently, 84 € is the cheapest price we've found for a one-way Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport flight. The best price for a return ticket is 150 €. Keep in mind that fares can change due to availability at the time of booking.

  • Score cheap tickets from BOI to SEA by booking six months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • The cheapest month for flights from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport is May. Use the 'Whole month' tool to see the lowest prices if you have flexible travel dates.

  • Finding cheap flights from BOI to SEA is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

  • Secure the right flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Boise Air Terminal (Gowen Field) Airport (BOI)

  • BOI is located at 3201 Airport Way.

  • Boise Air Terminal (Gowen Field) Airport maintains a solid on-time performance, so you're less likely to experience disruptions. Departures from BOI land at their destination as scheduled 83.53% of the time.

  • Central Boise to Boise Air Terminal (Gowen Field) Airport is approximately 18 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The trip on public transport takes roughly 1 hour 35 minutes.

  • Taking an early flight from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to BOI:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Seattle-Tacoma International Airport is roughly 23 kilometres from the centre of Seattle. The drive time takes about 20 minutes.

  • If you're travelling on public transport, expect a journey time of about 55 minutes.

When to fly to Seattle-Tacoma International Airport (SEA)

  • July is the busiest month for flights from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport. To steer clear of the crowds, travel to Seattle in May.

  • Before locking in your flight from Boise Air Terminal (Gowen Field) Airport to Seattle-Tacoma International Airport, consider the kind of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC (54ºF) to 28ºC (82ºF).

  • If you like cooler conditions, search for a cheap ticket from BOI to SEA in February. Average temperatures are between -1ºC (30ºF) and 11ºC (52ºF) then.

Explore more of United States

  • Seattle has its own special appeal, but there are so many other corners of United States waiting to be discovered. Around 241 kilometres south of Seattle, a trip to Portland will fill your itinerary to the brim. Start with popular sights like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • If you're looking to explore another side of United States, consider Spokane, roughly 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.