Boston to Seattle Flights (BOS-SEA) from $104

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Selected fares from Boston to Seattle

The cheapest prices found with in the last 7 days for return flights were $225 and $104 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, May 8 - Tue, May 14
BOS
Logan Intl.
SEA
Seattle - Tacoma Intl.
$225 Roundtrip, found 1 day ago
$225
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, May 8 from Logan Intl. to Seattle - Tacoma Intl., returning Tue, May 14, priced at $225 found 1 day ago
Delta
Mon, May 6 - Sun, May 12
ORH
Worcester Regional
SEA
Seattle - Tacoma Intl.
$316 Roundtrip, found 3 days ago
$316
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, May 6 from Worcester Regional to Seattle - Tacoma Intl., returning Sun, May 12, priced at $316 found 3 days ago
Delta
Tue, Aug 27 - Wed, Aug 28
PVD
T.F. Green
SEA
Seattle - Tacoma Intl.
$320 Roundtrip, found 5 days ago
$320
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Aug 27 from T.F. Green to Seattle - Tacoma Intl., returning Wed, Aug 28, priced at $320 found 5 days ago

Save more with Seattle Flight + Hotel packages

Price found within the past 48 hours. Click for updated prices.
Mediterranean Inn

Mediterranean Inn

3 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
Hotel Theodore

Hotel Theodore

4 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
The Belltown Inn

The Belltown Inn

2.5 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
Hotel Max

Hotel Max

3.5 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
Pan Pacific Seattle

Pan Pacific Seattle

4 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
The Edgewater Hotel

The Edgewater Hotel

4 out of 5
Save 100% on your flight
per person
Jun 21 - Jun 28
Roundtrip flight included
Boston (BOS) to Seattle (SEA)
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