Flights from Washington to Foster City

Cheapest flights from Washington

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.

Wed, Sep 17 - Wed, Sep 24

BWI

Baltimore Washington Intl. Thurgood Marshall

OAK

Oakland Intl.

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Wed, Sep 17 from Baltimore Washington Intl. Thurgood Marshall to Oakland Intl., returning Wed, Sep 24, priced at $197 found 2 days ago

Thu, Sep 18 - Wed, Sep 24

BWI

Baltimore Washington Intl. Thurgood Marshall

OAK

Oakland Intl.

$203 Roundtrip, found 2 days ago

$203

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Oakland Intl., returning Wed, Sep 24, priced at $203 found 2 days ago

Thu, Sep 18 - Thu, Sep 25

BWI

Baltimore Washington Intl. Thurgood Marshall

OAK

Oakland Intl.

$209 Roundtrip, found 2 days ago

$209

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Oakland Intl., returning Thu, Sep 25, priced at $209 found 2 days ago

Tue, Oct 14 - Tue, Oct 21

DCA

Ronald Reagan Washington National

SJC

Norman Y. Mineta San Jose Intl.

$263 Roundtrip, found 12 hours ago

$263

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Oct 14 from Ronald Reagan Washington National to Norman Y. Mineta San Jose Intl., returning Tue, Oct 21, priced at $263 found 12 hours ago

Sun, Sep 21 - Wed, Sep 24

BWI

Baltimore Washington Intl. Thurgood Marshall

OAK

Oakland Intl.

$267 Roundtrip, found 2 days ago

$267

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Sep 21 from Baltimore Washington Intl. Thurgood Marshall to Oakland Intl., returning Wed, Sep 24, priced at $267 found 2 days ago

Sun, Sep 21 - Thu, Sep 25

BWI

Baltimore Washington Intl. Thurgood Marshall

OAK

Oakland Intl.

$273 Roundtrip, found 2 days ago

$273

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Sep 21 from Baltimore Washington Intl. Thurgood Marshall to Oakland Intl., returning Thu, Sep 25, priced at $273 found 2 days ago

Tue, Oct 14 - Sat, Oct 18

DCA

Ronald Reagan Washington National

SJC

Norman Y. Mineta San Jose Intl.

$277 Roundtrip, found 12 hours ago

$277

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Oct 14 from Ronald Reagan Washington National to Norman Y. Mineta San Jose Intl., returning Sat, Oct 18, priced at $277 found 12 hours ago

Tue, Aug 5 - Wed, Aug 27

IAD

Washington Dulles Intl.

SFO

San Francisco Intl.

$283 Roundtrip, found 4 days ago

$283

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Washington Dulles Intl. to San Francisco Intl., returning Wed, Aug 27, priced at $283 found 4 days ago

Sat, Sep 20 - Sat, Sep 27

IAD

Washington Dulles Intl.

OAK

Oakland Intl.

$287 Roundtrip, found 1 day ago

$287

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Sat, Sep 20 from Washington Dulles Intl. to Oakland Intl., returning Sat, Sep 27, priced at $287 found 1 day ago

Tue, Aug 5 - Thu, Aug 28

IAD

Washington Dulles Intl.

SFO

San Francisco Intl.

$293 Roundtrip, found 4 days ago

$293

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Washington Dulles Intl. to San Francisco Intl., returning Thu, Aug 28, priced at $293 found 4 days ago

Tue, Jul 22 - Tue, Aug 12

IAD

Washington Dulles Intl.

SFO

San Francisco Intl.

$296 Roundtrip, found 4 days ago

$296

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jul 22 from Washington Dulles Intl. to San Francisco Intl., returning Tue, Aug 12, priced at $296 found 4 days ago

Thu, Oct 16 - Sat, Oct 18

DCA

Ronald Reagan Washington National

SJC

Norman Y. Mineta San Jose Intl.

$296 Roundtrip, found 12 hours ago

$296

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Thu, Oct 16 from Ronald Reagan Washington National to Norman Y. Mineta San Jose Intl., returning Sat, Oct 18, priced at $296 found 12 hours ago

Sat, Aug 16 - Sat, Aug 30

IAD

Washington Dulles Intl.

SFO

San Francisco Intl.

$297 Roundtrip, found 4 days ago

$297

Roundtrip

found 4 days ago

Select Delta flight, departing Sat, Aug 16 from Washington Dulles Intl. to San Francisco Intl., returning Sat, Aug 30, priced at $297 found 4 days ago

Thu, Nov 27 - Tue, Dec 2

DCA

Ronald Reagan Washington National

SFO

San Francisco Intl.

$298 Roundtrip, found 2 days ago

$298

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Thu, Nov 27 from Ronald Reagan Washington National to San Francisco Intl., returning Tue, Dec 2, priced at $298 found 2 days ago

Tue, Oct 14 - Mon, Oct 20

DCA

Ronald Reagan Washington National

SJC

Norman Y. Mineta San Jose Intl.

$299 Roundtrip, found 12 hours ago

$299

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, Oct 14 from Ronald Reagan Washington National to Norman Y. Mineta San Jose Intl., returning Mon, Oct 20, priced at $299 found 12 hours ago

Tue, Nov 25 - Wed, Dec 3

DCA

Ronald Reagan Washington National

SFO

San Francisco Intl.

$307 Roundtrip, found 13 hours ago

$307

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 25 from Ronald Reagan Washington National to San Francisco Intl., returning Wed, Dec 3, priced at $307 found 13 hours ago

Wed, Aug 6 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SFO

San Francisco Intl.

$326 Roundtrip, found 1 day ago

$326

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Baltimore Washington Intl. Thurgood Marshall to San Francisco Intl., returning Sat, Aug 16, priced at $326 found 1 day ago

Thu, Nov 27 - Tue, Dec 2

DCA

Ronald Reagan Washington National

SFO

San Francisco Intl.

$333 Roundtrip, found 2 days ago

$333

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Thu, Nov 27 from Ronald Reagan Washington National to San Francisco Intl., returning Tue, Dec 2, priced at $333 found 2 days ago

Thu, Nov 27 - Tue, Dec 2

DCA

Ronald Reagan Washington National

SFO

San Francisco Intl.

$338 Roundtrip, found 2 days ago

$338

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Nov 27 from Ronald Reagan Washington National to San Francisco Intl., returning Tue, Dec 2, priced at $338 found 2 days ago

Sat, Sep 20 - Sat, Sep 27

DCA

Ronald Reagan Washington National

OAK

Oakland Intl.

$488 Roundtrip, found 1 day ago

$488

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Sep 20 from Ronald Reagan Washington National to Oakland Intl., returning Sat, Sep 27, priced at $488 found 1 day ago