$89 Cheap United flights Ontario (ONT) to Seattle (SEA)

$89 Cheap United flights Ontario (ONT) to Seattle (SEA)

Prices were available within the past 7 days and start at $89 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $177 found 1 day ago

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$196 Roundtrip, found 1 day ago

$196

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $196 found 1 day ago

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$201 Roundtrip, found 1 day ago

$201

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $201 found 1 day ago

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$212 Roundtrip, found 1 day ago

$212

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $212 found 1 day ago

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$224 Roundtrip, found 1 day ago

$224

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $224 found 1 day ago

Fri, Sep 12 - Thu, Sep 18

ONT

Ontario

SEA

Seattle

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 12 from Ontario to Seattle, returning Thu, Sep 18, priced at $231 found 1 day ago