$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 $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$128 Roundtrip, found 1 day ago

$128

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $128 found 1 day ago

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$148 Roundtrip, found 1 day ago

$148

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $148 found 1 day ago

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$163 Roundtrip, found 1 day ago

$163

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $163 found 1 day ago

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$183 Roundtrip, found 1 day ago

$183

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $183 found 1 day ago

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$212 Roundtrip, found 1 day ago

$212

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $212 found 1 day ago

Thu, Nov 13 - Mon, Nov 17

SEA

Seattle

ONT

Ontario

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select United flight, departing Thu, Nov 13 from Seattle to Ontario, returning Mon, Nov 17, priced at $218 found 1 day ago