$109 Cheap Alaska Airlines flights Seattle (SEA) to Ontario (ONT)

$109 Cheap Alaska Airlines flights Seattle (SEA) to Ontario (ONT)

Prices were available within the past 7 days and start at $109 for one-way flights and $168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 24 - Tue, Jun 9

SEA

Seattle

ONT

Ontario

$168 Roundtrip, found 4 hours ago

$168

Roundtrip

found 4 hours ago

Select Alaska Airlines flight, departing Sun, May 24 from Seattle to Ontario, returning Tue, Jun 9, priced at $168 found 4 hours ago

Sun, May 24 - Tue, Jun 9

SEA

Seattle

ONT

Ontario

$177 Roundtrip, found 4 hours ago

$177

Roundtrip

found 4 hours ago

Select Alaska Airlines flight, departing Sun, May 24 from Seattle to Ontario, returning Tue, Jun 9, priced at $177 found 4 hours ago

Sat, Apr 25 - Wed, Apr 29

SEA

Seattle

ONT

Ontario

$184 Roundtrip, found 6 days ago

$184

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Sat, Apr 25 from Seattle to Ontario, returning Wed, Apr 29, priced at $184 found 6 days ago

Fri, May 1 - Tue, May 19

SEA

Seattle

ONT

Ontario

$207 Roundtrip, found 6 days ago

$207

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Fri, May 1 from Seattle to Ontario, returning Tue, May 19, priced at $207 found 6 days ago