$85 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (ORD)

$85 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (ORD)

Prices were available within the past 7 days and start at $85 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 2 - Wed, May 6

SFO

San Francisco

ORD

Chicago

$170 Roundtrip, found 9 hours ago

$170

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sat, May 2 from San Francisco to Chicago, returning Wed, May 6, priced at $170 found 9 hours ago

Wed, Apr 29 - Wed, May 6

SFO

San Francisco

ORD

Chicago

$185 Roundtrip, found 9 hours ago

$185

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Wed, Apr 29 from San Francisco to Chicago, returning Wed, May 6, priced at $185 found 9 hours ago

Wed, May 13 - Fri, May 29

SFO

San Francisco

ORD

Chicago

$195 Roundtrip, found 6 days ago

$195

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Wed, May 13 from San Francisco to Chicago, returning Fri, May 29, priced at $195 found 6 days ago

Wed, Apr 29 - Tue, May 5

SFO

San Francisco

ORD

Chicago

$200 Roundtrip, found 9 hours ago

$200

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Wed, Apr 29 from San Francisco to Chicago, returning Tue, May 5, priced at $200 found 9 hours ago

Wed, Apr 29 - Tue, May 5

SFO

San Francisco

ORD

Chicago

$208 Roundtrip, found 4 days ago

$208

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Apr 29 from San Francisco to Chicago, returning Tue, May 5, priced at $208 found 4 days ago

Wed, Apr 15 - Sat, Apr 18

SFO

San Francisco

ORD

Chicago

$210 Roundtrip, found 6 hours ago

$210

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Wed, Apr 15 from San Francisco to Chicago, returning Sat, Apr 18, priced at $210 found 6 hours ago