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Cheap flights from Boise to Seattle

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Compare Boise to Seattle flight deals

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Flight deals from Boise to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Boise to Seattle? Find the lowest prices on one-way and round-trip tickets right here.
Seattle.$137 per passenger.Departing Tue, Oct 7, returning Wed, Oct 15.Round-trip flight with Delta.Outbound direct flight with Delta departing from Boise on Tue, Oct 7, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Oct 15, arriving in Boise.Price includes taxes and charges.From $137, select.
Seattle.$137 per passenger.Departing Tue, Sep 2, returning Wed, Sep 10.Round-trip flight with Delta.Outbound direct flight with Delta departing from Boise on Tue, Sep 2, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Sep 10, arriving in Boise.Price includes taxes and charges.From $137, select.
Seattle.$147 per passenger.Departing Sun, Aug 24, returning Wed, Aug 27.Round-trip flight with Delta.Outbound direct flight with Delta departing from Boise on Sun, Aug 24, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Aug 27, arriving in Boise.Price includes taxes and charges.From $147, select.
Seattle.$157 per passenger.Departing Mon, Nov 3, returning Mon, Nov 10.Round-trip flight with Delta.Outbound direct flight with Delta departing from Boise on Mon, Nov 3, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departing from Seattle / Tacoma International on Mon, Nov 10, arriving in Boise.Price includes taxes and charges.From $157, select.
Seattle.$167 per passenger.Departing Tue, Jun 17, returning Tue, Aug 26.Round-trip flight with Delta.Outbound direct flight with Delta departing from Boise on Tue, Jun 17, arriving in Seattle / Tacoma International.Inbound direct flight with Delta departing from Seattle / Tacoma International on Tue, Aug 26, arriving in Boise.Price includes taxes and charges.From $167, select.
Seattle.$194 per passenger.Departing Tue, Jun 24, returning Tue, Jul 1.Round-trip flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departing from Boise on Tue, Jun 24, arriving in Seattle / Tacoma International.Inbound direct flight with Hawaiian Airlines departing from Seattle / Tacoma International on Tue, Jul 1, arriving in Boise.Price includes taxes and charges.From $194, select.
Seattle.$195 per passenger.Departing Thu, May 29, returning Sun, Jun 1.Round-trip flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departing from Boise on Thu, May 29, arriving in Seattle / Tacoma International.Inbound direct flight with Hawaiian Airlines departing from Seattle / Tacoma International on Sun, Jun 1, arriving in Boise.Price includes taxes and charges.From $195, select.
Seattle.$196 per passenger.Departing Mon, Jun 2, returning Sun, Jun 8.Round-trip flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departing from Boise on Mon, Jun 2, arriving in Seattle / Tacoma International.Inbound direct flight with Hawaiian Airlines departing from Seattle / Tacoma International on Sun, Jun 8, arriving in Boise.Price includes taxes and charges.From $196, select.

Find the cheapest month to fly from Boise to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Seattle flights are currently cheapest in September.
May
from $242
Jun
from $196
Jul
from $196
Aug
from $147
Sep
from $137
Oct
from $137
Nov
from $157
Dec
from $197
Jan
from $197
Feb
Find prices
Mar
Find prices
Apr
Find prices

Direct flights from Boise to Seattle

Alternative Boise to Seattle routes

Looking for the cheapest, fastest or easiest route from Boise to Seattle? You could fly into the following airports instead.

Boise to Seattle: Flight information

The things to know before you go.
Cheapest flight found$137
Cheapest month to flySeptember
Average flight time1 hr, 39 mins
Most popular airlineAir Tahiti Nui
Average flights per week680

Finding cheap flights from Boise to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a round-trip flight from Boise to Seattle is $137. 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 39 minutes is the average flight time from Boise to Seattle.
Air Tahiti Nui, Alaska Airlines and Hawaiian Airlines fly direct from Boise to Seattle.
There are 680 flights per week flying from Boise to Seattle, as of May 2025.
The cheapest month to fly from Boise to Seattle is usually May 2025.
If you're flying from Boise Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the center of Seattle. We've found flights to this airport from $137.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Seattle on Tuesday, September 2, 2025.
Yes – the average flight time is 1 hour and 39 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 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.
In May, the average temperature is usually around 12°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Delta offers the cheapest flight tickets to Seattle.

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

  • Jump on a direct flight from Boise Air Terminal (Gowen Field) Airport to Seattle and you'll be traveling for an average of 1 hour 30 minutes.

  • Boise Air Terminal (Gowen Field) Airport is located in Boise. Following the UTC-7 timezone, Seattle is one hour behind Boise.

  • The most popular route is from Boise Air Terminal (Gowen Field) Airport (BOI) to Seattle-Tacoma International Airport (SEA). Take your pick of 106 weekly services between these two airports. If you want to get going as soon as possible, the earliest flight from BOI to SEA is the 05:30 Alaska Airlines option. If you'd rather fly out later on, the final departure is at 21:03 with Alaska Airlines.

  • To avoid missing your BOI to Seattle flight, leave enough time for things like check-in and baggage drop. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • Taking off during a peak period like a public holiday? Expect longer lines at security and check-in. For peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • You can book a direct Boise Air Terminal (Gowen Field) Airport to Seattle ticket. Start your trip at BOI and land at Seattle-Tacoma International Airport (SEA).

  • Be on the lookout for promotions from Alaska Airlines. This airline has direct flights from Boise Air Terminal (Gowen Field) Airport to Seattle.

  • BOI is around 6 kilometers from central Boise. If you're driving, ride-sharing or catching a cab from the center, it'll take 20 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the travel time to be around 1 hour 35 minutes.

  • Catching an early flight from Boise Air Terminal (Gowen Field) Airport to Seattle? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by choosing one of these stays close to BOI:

  • Boise Air Terminal (Gowen Field) Airport scores high marks for its on-time performance. 83.53% of flights that take off from BOI reach their destination without delay.

  • BOI is located at 3201 Airport Way.

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

  • $62 is currently the lowest price for a one-way Boise Air Terminal (Gowen Field) Airport to Seattle flight. A return flight ticket starts at $137. These prices may change based on demand.

  • Score cheap flights from BOI to Seattle by booking one month ahead. According to our research, that's the sweet spot for picking up a bargain.

  • Organize your trip for May. That's the best month for landing an awesome deal on Boise Air Terminal (Gowen Field) Airport to Seattle tickets. If you're flexible with your dates, use the 'Whole month' tool to find the lowest price across every month.

  • You don't need to check back in every day to see if fares have dropped when you create a Price Alert. We'll notify you when there's an extra saving on cheap flights from BOI to Seattle.

  • Tailor your flights with filters. Pick your arrival and departure times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Boise Air Terminal (Gowen Field) Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometers from central Seattle. If you're opting for a ride-share or a cab, the drive takes about 20 minutes.

  • Traveling to the center by public transport takes around 55 minutes.

  • The last thing you want is a long journey to your hotel if you're arriving on a late flight from Boise Air Terminal (Gowen Field) Airport to Seattle. Book one of these accommodation options near SEA instead:

  • Hit the road running by picking up a Seattle-Tacoma International Airport rental car. Grab your wheels from Thrifty, Europcar or Budget and experience the lesser-explored corners of Seattle and beyond.

  • Reserving your vehicle from Seattle-Tacoma International Airport about one week ahead of your flight from BOI to Seattle can help you get the lowest rate.

Lake Union Sea Plane Base Airport (LKE)

  • The center of Seattle is about 3 kilometers from Lake Union Sea Plane Base Airport (LKE). After your flight from Boise Air Terminal (Gowen Field) Airport to Seattle has touched down and you've made your way to arrivals, the drive should take about 10 minutes.

  • If you travel by public transport, the ride to the center will take you 25 minutes or so.

  • Following your BOI to Seattle flight, unwind at a hotel close to LKE. These are some comfortable options that'll help you sink into relaxation mode:

Best time to go to Seattle

  • Carefully consider your trip dates before securing your flight from Boise Air Terminal (Gowen Field) Airport to Seattle. The city comes alive during peak season, but prices are generally higher and attractions can be crowded. Go to Seattle in the low season for a more relaxed vibe.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Lock in your Boise Air Terminal (Gowen Field) Airport to Seattle flight ticket then if that's your ideal forecast.

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Search for a cheap ticket from BOI to Seattle around that time if you want to travel in cooler conditions.

More about Seattle

  • When it comes to looking for somewhere to lay your head, you'll find the top stays in Seattle right here. Explore these hotels once you've booked your flight from Boise Air Terminal (Gowen Field) Airport to Seattle:

  • All great vacations should include some sightseeing. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are must-visits when exploring Seattle.

Explore more of United States

  • Seattle has its own special appeal, but there are so many other parts of United States just waiting to be discovered. About 241 kilometers south of Seattle, a trip to Portland will keep your itinerary packed. Don't miss top attractions like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Spokane is another standout destination in United States and is around 370 kilometers east of Seattle. No journey is complete without seeing Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

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Plan the rest of your trip from Boise to Seattle

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