
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
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Cheap flights from Boston to Seattle (BOS-SEA)
Prices were available within the past 7 days and start at €83 for one-way flights and €167 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 12 Mar - Wed, 18 Mar
BOS
Boston
SEA
Seattle
€167 Return, found 1 day ago
€167
Return
found 1 day ago

Fri, 3 Apr - Fri, 10 Apr
BOS
Boston
SEA
Seattle
€176 Return, found 3 days ago
€176
Return
found 3 days ago

Mon, 6 Apr - Mon, 13 Apr
BOS
Boston
SEA
Seattle
€177 Return, found 3 hours ago
€177
Return
found 3 hours ago

Fri, 3 Apr - Fri, 10 Apr
BOS
Boston
SEA
Seattle
€184 Return, found 3 days ago
€184
Return
found 3 days ago

Sat, 21 Mar - Mon, 23 Mar
BOS
Boston
SEA
Seattle
€192 Return, found 4 days ago
€192
Return
found 4 days ago

Sun, 15 Mar - Mon, 16 Mar
BOS
Boston
SEA
Seattle
€193 Return, found 1 day ago
€193
Return
found 1 day ago

Thu, 12 Mar - Wed, 18 Mar
BOS
Boston
SEA
Seattle
€210 Return, found 1 day ago
€210
Return
found 1 day ago

Mon, 6 Apr - Mon, 13 Apr
BOS
Boston
SEA
Seattle
€219 Return, found 3 hours ago
€219
Return
found 3 hours ago

Thu, 12 Mar - Wed, 18 Mar
BOS
Boston
SEA
Seattle
€236 Return, found 1 day ago
€236
Return
found 1 day ago

Thu, 12 Mar - Wed, 18 Mar
BOS
Boston
SEA
Seattle
€265 Return, found 1 day ago
€265
Return
found 1 day ago
Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)
March is typically the cheapest month to fly
From €135 - €265 per traveller.
Frequently asked questions
Travel information
Origin airport | Logan Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | €167 |
Distance | 3980 km |
Average flight time | 4 hours 11 mins |
Book with confidence
Perfect flights from Boston to Seattle
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