Flights from Chicago to Millbrae

Cheapest flights from Chicago

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 29 - Tue, Aug 5

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 3 days ago

$197

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Tue, Aug 5, priced at $197 found 3 days ago

Tue, Apr 7 - Tue, Apr 14

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select United flight, departing Tue, Apr 7 from O'Hare Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $197 found 6 days ago

Tue, Apr 7 - Tue, Apr 14

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Apr 7 from O'Hare Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $197 found 6 days ago

Sat, Sep 20 - Sun, Sep 28

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$198 Roundtrip, found 2 days ago

$198

Roundtrip

found 2 days ago

Select United flight, departing Sat, Sep 20 from O'Hare Intl. to San Francisco Intl., returning Sun, Sep 28, priced at $198 found 2 days ago

Tue, Jul 29 - Sat, Aug 2

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$207 Roundtrip, found 3 days ago

$207

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Sat, Aug 2, priced at $207 found 3 days ago

Thu, Jul 31 - Sat, Aug 2

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$217 Roundtrip, found 3 days ago

$217

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Thu, Jul 31 from O'Hare Intl. to San Francisco Intl., returning Sat, Aug 2, priced at $217 found 3 days ago

Tue, Apr 7 - Tue, Apr 14

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$227 Roundtrip, found 6 days ago

$227

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Apr 7 from O'Hare Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $227 found 6 days ago

Sat, Sep 20 - Sun, Sep 28

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$229 Roundtrip, found 2 days ago

$229

Roundtrip

found 2 days ago

Select United flight, departing Sat, Sep 20 from O'Hare Intl. to San Francisco Intl., returning Sun, Sep 28, priced at $229 found 2 days ago

Tue, Apr 7 - Tue, Apr 14

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$232 Roundtrip, found 6 days ago

$232

Roundtrip

found 6 days ago

Select United flight, departing Tue, Apr 7 from O'Hare Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $232 found 6 days ago

Sat, Sep 20 - Sun, Sep 28

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$236 Roundtrip, found 2 days ago

$236

Roundtrip

found 2 days ago

Select United flight, departing Sat, Sep 20 from O'Hare Intl. to San Francisco Intl., returning Sun, Sep 28, priced at $236 found 2 days ago

Sat, Aug 2 - Tue, Aug 5

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$237 Roundtrip, found 3 days ago

$237

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to San Francisco Intl., returning Tue, Aug 5, priced at $237 found 3 days ago

Sat, Sep 20 - Sun, Sep 28

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$238 Roundtrip, found 2 days ago

$238

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sat, Sep 20 from O'Hare Intl. to San Francisco Intl., returning Sun, Sep 28, priced at $238 found 2 days ago

Wed, Sep 17 - Wed, Oct 1

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$239 Roundtrip, found 2 days ago

$239

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Sep 17 from O'Hare Intl. to San Francisco Intl., returning Wed, Oct 1, priced at $239 found 2 days ago

Tue, Apr 7 - Tue, Apr 14

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$242 Roundtrip, found 6 days ago

$242

Roundtrip

found 6 days ago

Select United flight, departing Tue, Apr 7 from O'Hare Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $242 found 6 days ago

Tue, Jul 29 - Sun, Aug 3

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$243 Roundtrip, found 3 days ago

$243

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Sun, Aug 3, priced at $243 found 3 days ago

Thu, Sep 18 - Sat, Sep 27

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$244 Roundtrip, found 2 days ago

$244

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Sep 18 from O'Hare Intl. to San Francisco Intl., returning Sat, Sep 27, priced at $244 found 2 days ago

Sat, Aug 2 - Fri, Aug 8

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$247 Roundtrip, found 3 days ago

$247

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to San Francisco Intl., returning Fri, Aug 8, priced at $247 found 3 days ago

Wed, Sep 17 - Thu, Sep 25

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$248 Roundtrip, found 2 days ago

$248

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Sep 17 from O'Hare Intl. to San Francisco Intl., returning Thu, Sep 25, priced at $248 found 2 days ago

Tue, Apr 7 - Tue, Apr 14

MDW

Midway Intl.

SFO

San Francisco Intl.

$257 Roundtrip, found 6 days ago

$257

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Apr 7 from Midway Intl. to San Francisco Intl., returning Tue, Apr 14, priced at $257 found 6 days ago

Sat, Sep 20 - Sun, Sep 28

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$436 Roundtrip, found 2 days ago

$436

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Sat, Sep 20 from O'Hare Intl. to San Francisco Intl., returning Sun, Sep 28, priced at $436 found 2 days ago