$110 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (MDW)

$110 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (MDW)

Prices were available within the past 7 days and start at $110 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 31 - Sat, Jun 7

SFO

San Francisco

MDW

Chicago

$208 Roundtrip, found 5 days ago

$208

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, May 31 from San Francisco to Chicago, returning Sat, Jun 7, priced at $208 found 5 days ago

Sat, May 31 - Fri, Jun 6

SFO

San Francisco

MDW

Chicago

$218 Roundtrip, found 5 days ago

$218

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, May 31 from San Francisco to Chicago, returning Fri, Jun 6, priced at $218 found 5 days ago

Sun, Jun 1 - Fri, Jun 6

SFO

San Francisco

MDW

Chicago

$228 Roundtrip, found 5 days ago

$228

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Jun 1 from San Francisco to Chicago, returning Fri, Jun 6, priced at $228 found 5 days ago

Mon, May 19 - Thu, May 29

SFO

San Francisco

MDW

Chicago

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 19 from San Francisco to Chicago, returning Thu, May 29, priced at $230 found 1 day ago

Sat, May 31 - Mon, Jun 9

SFO

San Francisco

MDW

Chicago

$238 Roundtrip, found 5 days ago

$238

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, May 31 from San Francisco to Chicago, returning Mon, Jun 9, priced at $238 found 5 days ago

Mon, May 19 - Sat, May 31

SFO

San Francisco

MDW

Chicago

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 19 from San Francisco to Chicago, returning Sat, May 31, priced at $240 found 1 day ago

Fri, Jun 6 - Mon, Jun 9

SFO

San Francisco

MDW

Chicago

$248 Roundtrip, found 5 days ago

$248

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Jun 6 from San Francisco to Chicago, returning Mon, Jun 9, priced at $248 found 5 days ago

Sat, May 24 - Sat, May 31

SFO

San Francisco

MDW

Chicago

$250 Roundtrip, found 1 day ago

$250

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Sat, May 31, priced at $250 found 1 day ago

Wed, May 21 - Sat, May 31

SFO

San Francisco

MDW

Chicago

$260 Roundtrip, found 1 day ago

$260

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, May 21 from San Francisco to Chicago, returning Sat, May 31, priced at $260 found 1 day ago

Sat, May 24 - Sun, Jun 1

SFO

San Francisco

MDW

Chicago

$270 Roundtrip, found 1 day ago

$270

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 24 from San Francisco to Chicago, returning Sun, Jun 1, priced at $270 found 1 day ago

Mon, May 19 - Mon, May 26

SFO

San Francisco

MDW

Chicago

$271 Roundtrip, found 1 day ago

$271

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, May 19 from San Francisco to Chicago, returning Mon, May 26, priced at $271 found 1 day ago