$214 Cheap Delta flights Seattle (SEA) to Ontario Intl. Airport (ONT)

$214 Cheap Delta flights Seattle (SEA) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at $214 for one-way flights and $147 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jun 3 - Sat, Jun 6

SEA

Seattle

ONT

Ontario

$147 Roundtrip, found 5 hours ago

$147

Roundtrip

found 5 hours ago

Select Delta flight, departing Wed, Jun 3 from Seattle to Ontario, returning Sat, Jun 6, priced at $147 found 5 hours ago

Wed, Jun 3 - Fri, Jun 5

SEA

Seattle

ONT

Ontario

$207 Roundtrip, found 5 hours ago

$207

Roundtrip

found 5 hours ago

Select Delta flight, departing Wed, Jun 3 from Seattle to Ontario, returning Fri, Jun 5, priced at $207 found 5 hours ago

Tue, May 26 - Tue, Jun 2

SEA

Seattle

ONT

Ontario

$322 Roundtrip, just found

$322

Roundtrip

just found

Select Delta flight, departing Tue, May 26 from Seattle to Ontario, returning Tue, Jun 2, priced at $322 just found

Tue, May 26 - Tue, Jun 2

SEA

Seattle

ONT

Ontario

$332 Roundtrip, just found

$332

Roundtrip

just found

Select Delta flight, departing Tue, May 26 from Seattle to Ontario, returning Tue, Jun 2, priced at $332 just found