$91 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (ORD)

$91 Cheap Frontier Airlines flights San Francisco (SFO) to Chicago (ORD)

Prices were available within the past 7 days and start at $91 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 13 - Fri, Oct 17

SFO

San Francisco

ORD

Chicago

$198 Roundtrip, found 4 days ago

$198

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Oct 13 from San Francisco to Chicago, returning Fri, Oct 17, priced at $198 found 4 days ago

Thu, Oct 16 - Mon, Oct 20

SFO

San Francisco

ORD

Chicago

$214 Roundtrip, found 4 days ago

$214

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Oct 16 from San Francisco to Chicago, returning Mon, Oct 20, priced at $214 found 4 days ago

Mon, Oct 13 - Sun, Oct 19

SFO

San Francisco

ORD

Chicago

$223 Roundtrip, found 4 days ago

$223

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Oct 13 from San Francisco to Chicago, returning Sun, Oct 19, priced at $223 found 4 days ago

Thu, Oct 16 - Sun, Oct 19

SFO

San Francisco

ORD

Chicago

$239 Roundtrip, found 4 days ago

$239

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Oct 16 from San Francisco to Chicago, returning Sun, Oct 19, priced at $239 found 4 days ago

Fri, Oct 17 - Mon, Oct 20

SFO

San Francisco

ORD

Chicago

$256 Roundtrip, found 4 days ago

$256

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 17 from San Francisco to Chicago, returning Mon, Oct 20, priced at $256 found 4 days ago

Fri, Oct 17 - Sun, Oct 19

SFO

San Francisco

ORD

Chicago

$281 Roundtrip, found 4 days ago

$281

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 17 from San Francisco to Chicago, returning Sun, Oct 19, priced at $281 found 4 days ago