Flights from Baltimore to San Francisco

Cheapest flights from Baltimore

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.

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$299 Roundtrip, found 1 hour ago

$299

Roundtrip

found 1 hour ago

Select Copa flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $299 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$301 Roundtrip, found 1 hour ago

$301

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $301 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$307 Roundtrip, found 1 hour ago

$307

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $307 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$313 Roundtrip, found 1 hour ago

$313

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $313 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$314 Roundtrip, found 1 hour ago

$314

Roundtrip

found 1 hour ago

Select Copa flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $314 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$321 Roundtrip, found 1 hour ago

$321

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $321 found 1 hour ago

Tue, Aug 12 - Wed, Aug 13

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$322 Roundtrip, found 9 hours ago

$322

Roundtrip

found 9 hours ago

Select Spirit Airlines flight, departing Tue, Aug 12 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Wed, Aug 13, priced at $322 found 9 hours ago

Mon, Aug 11 - Sat, Aug 16

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$327 Roundtrip, found 1 day ago

$327

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Mon, Aug 11 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Aug 16, priced at $327 found 1 day ago

Tue, Aug 12 - Tue, Aug 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$330 Roundtrip, found 9 hours ago

$330

Roundtrip

found 9 hours ago

Select Spirit Airlines flight, departing Tue, Aug 12 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Tue, Aug 19, priced at $330 found 9 hours ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$333 Roundtrip, found 1 hour ago

$333

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $333 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$333 Roundtrip, found 1 hour ago

$333

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $333 found 1 hour ago

Sun, Aug 10 - Wed, Aug 13

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$334 Roundtrip, found 6 days ago

$334

Roundtrip

found 6 days ago

Select Delta flight, departing Sun, Aug 10 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Wed, Aug 13, priced at $334 found 6 days ago

Wed, Aug 13 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$338 Roundtrip, found 2 days ago

$338

Roundtrip

found 2 days ago

Select Copa flight, departing Wed, Aug 13 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $338 found 2 days ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$343 Roundtrip, found 1 hour ago

$343

Roundtrip

found 1 hour ago

Select Spirit Airlines flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $343 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$345 Roundtrip, found 1 hour ago

$345

Roundtrip

found 1 hour ago

Select Copa flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $345 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$350 Roundtrip, found 1 day ago

$350

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Mon, Aug 11 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Aug 16, priced at $350 found 1 day ago

Mon, Aug 11 - Sat, Aug 16

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$354 Roundtrip, found 1 hour ago

$354

Roundtrip

found 1 hour ago

Select Copa flight, departing Mon, Aug 11 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Aug 16, priced at $354 found 1 hour ago

Mon, Aug 11 - Sat, Aug 16

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$355 Roundtrip, found 1 day ago

$355

Roundtrip

found 1 day ago

Select United flight, departing Mon, Aug 11 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Aug 16, priced at $355 found 1 day ago

Wed, Aug 13 - Mon, Aug 18

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$356 Roundtrip, found 9 hours ago

$356

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Aug 13 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Mon, Aug 18, priced at $356 found 9 hours ago

Mon, Aug 11 - Tue, Aug 19

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$381 Roundtrip, found 6 days ago

$381

Roundtrip

found 6 days ago

Select American Airlines flight, departing Mon, Aug 11 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Tue, Aug 19, priced at $381 found 6 days ago