$144 Cheap United flights Seattle (SEA) to Boston (BOS)

$144 Cheap United flights Seattle (SEA) to Boston (BOS)

Prices were available within the past 7 days and start at $144 for one-way flights and $272 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 20 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$272 Roundtrip, found 1 day ago

$272

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jan 20 from Seattle to Boston, returning Thu, Jan 29, priced at $272 found 1 day ago

Tue, Jan 20 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jan 20 from Seattle to Boston, returning Thu, Jan 29, priced at $297 found 1 day ago

Tue, Jan 20 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jan 20 from Seattle to Boston, returning Thu, Jan 29, priced at $307 found 1 day ago

Tue, Jan 20 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$312 Roundtrip, found 1 day ago

$312

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jan 20 from Seattle to Boston, returning Thu, Jan 29, priced at $312 found 1 day ago

Wed, Jan 21 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$317 Roundtrip, just found

$317

Roundtrip

just found

Select United flight, departing Wed, Jan 21 from Seattle to Boston, returning Thu, Jan 29, priced at $317 just found

Wed, Jan 21 - Thu, Jan 29

SEA

Seattle

BOS

Boston

$323 Roundtrip, just found

$323

Roundtrip

just found

Select United flight, departing Wed, Jan 21 from Seattle to Boston, returning Thu, Jan 29, priced at $323 just found