Flights from Chicago to Los Altos

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 - Wed, Aug 6

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Wed, Aug 6, priced at $197 found 6 days ago

Tue, Jul 29 - Tue, Aug 5

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$207 Roundtrip, found 6 days ago

$207

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Tue, Aug 5, priced at $207 found 6 days ago

Thu, Jul 31 - Tue, Aug 5

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$217 Roundtrip, found 6 days ago

$217

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Thu, Jul 31 from O'Hare Intl. to San Francisco Intl., returning Tue, Aug 5, priced at $217 found 6 days ago

Tue, Jun 17 - Mon, Jun 30

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$227 Roundtrip, found 1 day ago

$227

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Jun 17 from O'Hare Intl. to San Francisco Intl., returning Mon, Jun 30, priced at $227 found 1 day ago

Sat, Aug 30 - Tue, Sep 23

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$236 Roundtrip, found 6 days ago

$236

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Sat, Aug 30 from O'Hare Intl. to San Francisco Intl., returning Tue, Sep 23, priced at $236 found 6 days ago

Sat, Aug 2 - Wed, Aug 6

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$237 Roundtrip, found 6 days ago

$237

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to San Francisco Intl., returning Wed, Aug 6, priced at $237 found 6 days ago

Fri, Jun 13 - Sun, Jun 15

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$239 Roundtrip, found 6 days ago

$239

Roundtrip

found 6 days ago

Select United flight, departing Fri, Jun 13 from O'Hare Intl. to San Francisco Intl., returning Sun, Jun 15, priced at $239 found 6 days ago

Tue, Jul 29 - Mon, Aug 11

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$243 Roundtrip, found 6 days ago

$243

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Mon, Aug 11, priced at $243 found 6 days ago

Tue, Jul 29 - Thu, Aug 7

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$243 Roundtrip, found 6 days ago

$243

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from O'Hare Intl. to San Francisco Intl., returning Thu, Aug 7, priced at $243 found 6 days ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$246 Roundtrip, found 6 days ago

$246

Roundtrip

found 6 days ago

Select United flight, departing Fri, Aug 1 from O'Hare Intl. to San Francisco Intl., returning Fri, Aug 8, priced at $246 found 6 days ago

Tue, Jun 17 - Sat, Jul 5

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jun 17 from O'Hare Intl. to San Francisco Intl., returning Sat, Jul 5, priced at $247 found 1 day ago

Sat, May 31 - Wed, Jun 11

MDW

Midway Intl.

SFO

San Francisco Intl.

$250 Roundtrip, found 5 days ago

$250

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, May 31 from Midway Intl. to San Francisco Intl., returning Wed, Jun 11, priced at $250 found 5 days ago

Tue, Jun 17 - Fri, Jul 4

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$253 Roundtrip, found 1 day ago

$253

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jun 17 from O'Hare Intl. to San Francisco Intl., returning Fri, Jul 4, priced at $253 found 1 day ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$256 Roundtrip, found 6 days ago

$256

Roundtrip

found 6 days ago

Select United flight, departing Fri, Aug 1 from O'Hare Intl. to San Francisco Intl., returning Fri, Aug 8, priced at $256 found 6 days ago

Tue, Jun 17 - Tue, Jul 1

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$257 Roundtrip, found 1 day ago

$257

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jun 17 from O'Hare Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $257 found 1 day ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$257 Roundtrip, found 6 days ago

$257

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to San Francisco Intl., returning Fri, Aug 8, priced at $257 found 6 days ago

Sun, Jun 15 - Tue, Jul 1

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$259 Roundtrip, found 1 day ago

$259

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 15 from O'Hare Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $259 found 1 day ago

Fri, Jun 13 - Sun, Jun 15

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$266 Roundtrip, found 6 days ago

$266

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Jun 13 from O'Hare Intl. to San Francisco Intl., returning Sun, Jun 15, priced at $266 found 6 days ago

Sat, May 31 - Wed, Jun 4

MDW

Midway Intl.

OAK

Oakland Intl.

$754 Roundtrip, found 1 day ago

$754

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, May 31 from Midway Intl. to Oakland Intl., returning Wed, Jun 4, priced at $754 found 1 day ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

SFO

San Francisco Intl.

$870 Roundtrip, found 6 days ago

$870

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Fri, Aug 1 from O'Hare Intl. to San Francisco Intl., returning Fri, Aug 8, priced at $870 found 6 days ago