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

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

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.

Sun, May 10 - Tue, May 12

SFO

San Francisco

MDW

Chicago

$170 Roundtrip, found 5 days ago

$170

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, May 10 from San Francisco to Chicago, returning Tue, May 12, priced at $170 found 5 days ago

Tue, May 5 - Tue, May 12

SFO

San Francisco

MDW

Chicago

$195 Roundtrip, found 5 days ago

$195

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, May 5 from San Francisco to Chicago, returning Tue, May 12, priced at $195 found 5 days ago

Sun, May 10 - Thu, May 14

SFO

San Francisco

MDW

Chicago

$215 Roundtrip, found 5 days ago

$215

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, May 10 from San Francisco to Chicago, returning Thu, May 14, priced at $215 found 5 days ago

Tue, May 5 - Wed, May 13

SFO

San Francisco

MDW

Chicago

$220 Roundtrip, found 5 days ago

$220

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, May 5 from San Francisco to Chicago, returning Wed, May 13, priced at $220 found 5 days ago

Sun, May 10 - Mon, May 11

SFO

San Francisco

MDW

Chicago

$230 Roundtrip, found 5 days ago

$230

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, May 10 from San Francisco to Chicago, returning Mon, May 11, priced at $230 found 5 days ago

Wed, May 6 - Tue, May 12

SFO

San Francisco

MDW

Chicago

$235 Roundtrip, found 5 days ago

$235

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, May 6 from San Francisco to Chicago, returning Tue, May 12, priced at $235 found 5 days ago