$135 Cheap Frontier Airlines flights Seattle (SEA) to Chicago (ORD)

$135 Cheap Frontier Airlines flights Seattle (SEA) to Chicago (ORD)

Prices were available within the past 7 days and start at $135 for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 8 - Sat, Aug 9

SEA

Seattle

ORD

Chicago

$280 Roundtrip, found 3 days ago

$280

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle to Chicago, returning Sat, Aug 9, priced at $280 found 3 days ago

Fri, Aug 8 - Mon, Aug 11

PAE

Seattle

ORD

Chicago

$290 Roundtrip, found 3 days ago

$290

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle to Chicago, returning Mon, Aug 11, priced at $290 found 3 days ago