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

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

Prices were available within the past 7 days and start at $80 for one-way flights and $119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 6 - Wed, Dec 10

SEA

Seattle

ONT

Ontario

$119 Roundtrip, found 15 hours ago

$119

Roundtrip

found 15 hours ago

Select Delta flight, departing Sat, Dec 6 from Seattle to Ontario, returning Wed, Dec 10, priced at $119 found 15 hours ago

Sat, Dec 6 - Mon, Dec 8

SEA

Seattle

ONT

Ontario

$129 Roundtrip, found 3 days ago

$129

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Dec 6 from Seattle to Ontario, returning Mon, Dec 8, priced at $129 found 3 days ago

Fri, Dec 5 - Mon, Dec 8

SEA

Seattle

ONT

Ontario

$149 Roundtrip, found 3 days ago

$149

Roundtrip

found 3 days ago

Select Delta flight, departing Fri, Dec 5 from Seattle to Ontario, returning Mon, Dec 8, priced at $149 found 3 days ago

Sat, Dec 6 - Mon, Dec 8

SEA

Seattle

ONT

Ontario

$178 Roundtrip, found 3 days ago

$178

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Dec 6 from Seattle to Ontario, returning Mon, Dec 8, priced at $178 found 3 days ago

Tue, Dec 2 - Wed, Dec 10

SEA

Seattle

ONT

Ontario

$248 Roundtrip, found 15 hours ago

$248

Roundtrip

found 15 hours ago

Select Delta flight, departing Tue, Dec 2 from Seattle to Ontario, returning Wed, Dec 10, priced at $248 found 15 hours ago