$159 Cheap United flights Ontario Intl. Airport (ONT) to Seattle (SEA)

$159 Cheap United flights Ontario Intl. Airport (ONT) to Seattle (SEA)

Prices were available within the past 7 days and start at $159 for one-way flights and $232 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 12 - Tue, Sep 22

ONT

Ontario

SEA

Seattle

$232 Roundtrip, found 15 hours ago

$232

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 12 from Ontario to Seattle, returning Tue, Sep 22, priced at $232 found 15 hours ago

Sat, Sep 12 - Tue, Sep 22

ONT

Ontario

SEA

Seattle

$237 Roundtrip, found 15 hours ago

$237

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 12 from Ontario to Seattle, returning Tue, Sep 22, priced at $237 found 15 hours ago

Sat, Sep 12 - Tue, Sep 22

ONT

Ontario

SEA

Seattle

$253 Roundtrip, found 15 hours ago

$253

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 12 from Ontario to Seattle, returning Tue, Sep 22, priced at $253 found 15 hours ago

Sat, Sep 12 - Tue, Sep 22

ONT

Ontario

SEA

Seattle

$264 Roundtrip, found 15 hours ago

$264

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 12 from Ontario to Seattle, returning Tue, Sep 22, priced at $264 found 15 hours ago

Sat, Sep 12 - Sat, Sep 19

ONT

Ontario

SEA

Seattle

$273 Roundtrip, found 15 hours ago

$273

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 12 from Ontario to Seattle, returning Sat, Sep 19, priced at $273 found 15 hours ago

Tue, Sep 15 - Tue, Sep 22

ONT

Ontario

SEA

Seattle

$273 Roundtrip, found 15 hours ago

$273

Roundtrip

found 15 hours ago

Select United flight, departing Tue, Sep 15 from Ontario to Seattle, returning Tue, Sep 22, priced at $273 found 15 hours ago