$80 Cheap Delta flights Ontario (ONT) to Seattle (SEA)

$80 Cheap Delta flights Ontario (ONT) to Seattle (SEA)

Prices were available within the past 7 days and start at $80 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 21 - Wed, Dec 31

ONT

Ontario

SEA

Seattle

$149 Roundtrip, found 2 days ago

$149

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Dec 21 from Ontario to Seattle, returning Wed, Dec 31, priced at $149 found 2 days ago

Mon, Dec 22 - Wed, Dec 31

ONT

Ontario

SEA

Seattle

$169 Roundtrip, found 2 days ago

$169

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Dec 22 from Ontario to Seattle, returning Wed, Dec 31, priced at $169 found 2 days ago

Wed, Dec 24 - Sun, Dec 28

ONT

Ontario

SEA

Seattle

$238 Roundtrip, found 2 days ago

$238

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Dec 24 from Ontario to Seattle, returning Sun, Dec 28, priced at $238 found 2 days ago

Mon, Jun 22 - Thu, Jul 2

ONT

Ontario

SEA

Seattle

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select Delta flight, departing Mon, Jun 22 from Ontario to Seattle, returning Thu, Jul 2, priced at $297 found 3 days ago