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

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

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.

Sat, Aug 30 - Fri, Sep 5

SEA

Seattle

ONT

Ontario

$177 Roundtrip, found 2 days ago

$177

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 30 from Seattle to Ontario, returning Fri, Sep 5, priced at $177 found 2 days ago

Sat, Aug 30 - Fri, Sep 5

SEA

Seattle

ONT

Ontario

$183 Roundtrip, found 2 days ago

$183

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 30 from Seattle to Ontario, returning Fri, Sep 5, priced at $183 found 2 days ago

Sat, Aug 30 - Fri, Sep 5

SEA

Seattle

ONT

Ontario

$212 Roundtrip, found 2 days ago

$212

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 30 from Seattle to Ontario, returning Fri, Sep 5, priced at $212 found 2 days ago