Cheap Flights From Boise (BOI) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Boise (BOI) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $166 round trip and CA $111 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Dec 9 - Tue, Dec 23
BOI
Boise
SEA
Seattle
CA $166 Roundtrip, found 6 days ago
CA $166
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Boise to Seattle, returning Tue, Dec 23, priced at CA $166 found 6 days ago
Tue, Dec 30 - Sun, Jan 4
BOI
Boise
SEA
Seattle
CA $178 Roundtrip, found 1 day ago
CA $178
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Dec 30 from Boise to Seattle, returning Sun, Jan 4, priced at CA $178 found 1 day ago
Tue, Dec 30 - Sun, Jan 4
BOI
Boise
SEA
Seattle
CA $192 Roundtrip, found 1 day ago
CA $192
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Dec 30 from Boise to Seattle, returning Sun, Jan 4, priced at CA $192 found 1 day ago
Mon, Dec 8 - Tue, Dec 23
BOI
Boise
SEA
Seattle
CA $195 Roundtrip, found 6 days ago
CA $195
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Dec 8 from Boise to Seattle, returning Tue, Dec 23, priced at CA $195 found 6 days ago
Tue, Dec 9 - Tue, Dec 23
BOI
Boise
SEA
Seattle
CA $209 Roundtrip, found 6 days ago
CA $209
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Boise to Seattle, returning Tue, Dec 23, priced at CA $209 found 6 days ago
Sat, Nov 15 - Sun, Nov 16
BOI
Boise
SEA
Seattle
CA $209 Roundtrip, found 3 days ago
CA $209
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Boise to Seattle, returning Sun, Nov 16, priced at CA $209 found 3 days ago
Tue, Dec 30 - Sun, Jan 4
BOI
Boise
SEA
Seattle
CA $220 Roundtrip, found 1 day ago
CA $220
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Dec 30 from Boise to Seattle, returning Sun, Jan 4, priced at CA $220 found 1 day ago
Sat, Nov 15 - Sun, Nov 16
BOI
Boise
SEA
Seattle
CA $223 Roundtrip, found 3 days ago
CA $223
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Boise to Seattle, returning Sun, Nov 16, priced at CA $223 found 3 days ago
Sat, Nov 15 - Sun, Nov 16
BOI
Boise
SEA
Seattle
CA $223 Roundtrip, found 3 days ago
CA $223
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Boise to Seattle, returning Sun, Nov 16, priced at CA $223 found 3 days ago
Sat, Nov 15 - Sun, Nov 16
BOI
Boise
SEA
Seattle
CA $228 Roundtrip, found 3 days ago
CA $228
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Boise to Seattle, returning Sun, Nov 16, priced at CA $228 found 3 days ago

Frequently asked questions

Are there direct flights from BOI to Seattle - Tacoma Intl. Airport (SEA)?
Sometimes, a trip is all about the journey; other times, the magic is in the destination. If you're eager to get to where you're going fast, multiple airlines operate direct flights from Boise Airport to Sea-Tac Airport, including Alaska Airlines and Delta.
What airlines fly from Boise Airport to Sea-Tac Airport?
If you need to get to Seattle from Boise, there are several airlines advertising direct flights. One of the most well-known is Alaska Airlines (AS), which offers 321 flights on this route each month. You should also pore through the deals on offer from Delta (DL). This airline operates 182 flights each month on the Boise to Seattle route. Compare the two to find your perfect fare.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Boise (BOI)

Travelers at BOI love to visit these top cities. Roam to the top destinations from Boise (BOI) today with the cheap prices from Travelocity!

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.