$129 Cheap United flights Boston (BOS) to Seattle (SEA)

$129 Cheap United flights Boston (BOS) to Seattle (SEA)

Prices were available within the past 7 days and start at $129 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 4 - Tue, Sep 9

BOS

Boston

SEA

Seattle

$237 Roundtrip, found 21 hours ago

$237

Roundtrip

found 21 hours ago

Select United flight, departing Thu, Sep 4 from Boston to Seattle, returning Tue, Sep 9, priced at $237 found 21 hours ago

Thu, Sep 4 - Tue, Sep 9

BOS

Boston

SEA

Seattle

$247 Roundtrip, found 21 hours ago

$247

Roundtrip

found 21 hours ago

Select United flight, departing Thu, Sep 4 from Boston to Seattle, returning Tue, Sep 9, priced at $247 found 21 hours ago

Thu, Aug 21 - Thu, Sep 4

BOS

Boston

SEA

Seattle

$262 Roundtrip, found 1 day ago

$262

Roundtrip

found 1 day ago

Select United flight, departing Thu, Aug 21 from Boston to Seattle, returning Thu, Sep 4, priced at $262 found 1 day ago

Thu, Sep 4 - Tue, Sep 9

BOS

Boston

SEA

Seattle

$280 Roundtrip, found 21 hours ago

$280

Roundtrip

found 21 hours ago

Select United flight, departing Thu, Sep 4 from Boston to Seattle, returning Tue, Sep 9, priced at $280 found 21 hours ago

Thu, Sep 4 - Tue, Sep 9

BOS

Boston

SEA

Seattle

$281 Roundtrip, found 21 hours ago

$281

Roundtrip

found 21 hours ago

Select United flight, departing Thu, Sep 4 from Boston to Seattle, returning Tue, Sep 9, priced at $281 found 21 hours ago

Thu, Sep 4 - Tue, Sep 9

BOS

Boston

SEA

Seattle

$287 Roundtrip, found 21 hours ago

$287

Roundtrip

found 21 hours ago

Select United flight, departing Thu, Sep 4 from Boston to Seattle, returning Tue, Sep 9, priced at $287 found 21 hours ago