Cheap Flights from Boston (BOS) to Seattle (SEA) from HK$1,195~

View HK$1,195 flight on Thu, 26 Feb 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)

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Find Cheap Flights from Boston (BOS) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$1,195 for one-way flights and HK$2,036 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 19 Jan - Tue, 20 Jan
BOS
Boston
SEA
Seattle
HK$2,036 Return, found 2 days ago
HK$2,036
Return
found 2 days ago
Select Delta flight, departing Mon, 19 Jan from Boston to Seattle, returning Tue, 20 Jan, priced at HK$2,036 found 2 days ago
Delta
Fri, 16 Jan - Mon, 19 Jan
BOS
Boston
SEA
Seattle
HK$2,175 Return, found 2 days ago
HK$2,175
Return
found 2 days ago
Select Delta flight, departing Fri, 16 Jan from Boston to Seattle, returning Mon, 19 Jan, priced at HK$2,175 found 2 days ago
Alaska Airlines
Tue, 13 Jan - Fri, 23 Jan
BOS
Boston
SEA
Seattle
HK$2,390 Return, found 2 days ago
HK$2,390
Return
found 2 days ago
Select Alaska Airlines flight, departing Tue, 13 Jan from Boston to Seattle, returning Fri, 23 Jan, priced at HK$2,390 found 2 days ago
Delta
Tue, 13 Jan - Sun, 18 Jan
BOS
Boston
SEA
Seattle
HK$2,391 Return, found 2 days ago
HK$2,391
Return
found 2 days ago
Select Delta flight, departing Tue, 13 Jan from Boston to Seattle, returning Sun, 18 Jan, priced at HK$2,391 found 2 days ago
Delta
Tue, 13 Jan - Sat, 17 Jan
BOS
Boston
SEA
Seattle
HK$2,401 Return, found 2 days ago
HK$2,401
Return
found 2 days ago
Select Delta flight, departing Tue, 13 Jan from Boston to Seattle, returning Sat, 17 Jan, priced at HK$2,401 found 2 days ago
Alaska Airlines
Mon, 19 Jan - Fri, 23 Jan
BOS
Boston
SEA
Seattle
HK$2,466 Return, found 2 days ago
HK$2,466
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 19 Jan from Boston to Seattle, returning Fri, 23 Jan, priced at HK$2,466 found 2 days ago
Alaska Airlines
Mon, 5 Jan - Tue, 20 Jan
BOS
Boston
SEA
Seattle
HK$2,595 Return, found 2 days ago
HK$2,595
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 5 Jan from Boston to Seattle, returning Tue, 20 Jan, priced at HK$2,595 found 2 days ago
United
Fri, 16 Jan - Mon, 19 Jan
BOS
Boston
SEA
Seattle
HK$2,614 Return, found 2 days ago
HK$2,614
Return
found 2 days ago
Select United flight, departing Fri, 16 Jan from Boston to Seattle, returning Mon, 19 Jan, priced at HK$2,614 found 2 days ago
American Airlines
Tue, 6 Jan - Tue, 13 Jan
BOS
Boston
SEA
Seattle
HK$2,853 Return, found 5 days ago
HK$2,853
Return
found 5 days ago
Select American Airlines flight, departing Tue, 6 Jan from Boston to Seattle, returning Tue, 13 Jan, priced at HK$2,853 found 5 days ago
Hawaiian Airlines
Fri, 12 Dec - Tue, 23 Dec
BOS
Boston
SEA
Seattle
HK$3,250 Return, found 2 days ago
HK$3,250
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, 12 Dec from Boston to Seattle, returning Tue, 23 Dec, priced at HK$3,250 found 2 days ago

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Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)

March is typically the cheapest month to fly

From HK$1,214 - HK$2,385 per traveller.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from HK$3,014
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from HK$3,014
Boston to Seattle route information
Origin airport
Logan Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
HK$2,036
Distance
3980 km
Average flight time
4 hours 33 mins

Flights from Boston to Seattle

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Search for flights from Boston (BOS) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Boston (BOS) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$1,195 now!

 

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