Flights from Washington to Santa Rosa

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.

Sun, Feb 8 - Sat, Feb 14

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$267 Roundtrip, found 2 days ago

$267

Roundtrip

found 2 days ago

Select Copa flight, departing Sun, Feb 8 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Feb 14, priced at $267 found 2 days ago

Sun, Feb 8 - Sat, Feb 14

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$283 Roundtrip, found 2 days ago

$283

Roundtrip

found 2 days ago

Select avianca flight, departing Sun, Feb 8 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Feb 14, priced at $283 found 2 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$286 Roundtrip, found 4 days ago

$286

Roundtrip

found 4 days ago

Select Copa flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $286 found 4 days ago

Sun, Feb 8 - Sat, Feb 14

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$287 Roundtrip, found 2 days ago

$287

Roundtrip

found 2 days ago

Select United flight, departing Sun, Feb 8 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Feb 14, priced at $287 found 2 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$289 Roundtrip, found 4 days ago

$289

Roundtrip

found 4 days ago

Select avianca flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $289 found 4 days ago

Sun, Mar 15 - Sat, Mar 21

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$294 Roundtrip, found 3 days ago

$294

Roundtrip

found 3 days ago

Select Copa flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Mar 21, priced at $294 found 3 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$300 Roundtrip, found 4 days ago

$300

Roundtrip

found 4 days ago

Select avianca flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $300 found 4 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$306 Roundtrip, found 4 days ago

$306

Roundtrip

found 4 days ago

Select Copa flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $306 found 4 days ago

Sun, Mar 15 - Sat, Mar 21

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$316 Roundtrip, found 3 days ago

$316

Roundtrip

found 3 days ago

Select avianca flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Mar 21, priced at $316 found 3 days ago

Sun, Feb 8 - Sat, Feb 14

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$316 Roundtrip, found 2 days ago

$316

Roundtrip

found 2 days ago

Select avianca flight, departing Sun, Feb 8 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Feb 14, priced at $316 found 2 days ago

Sun, Feb 8 - Sat, Feb 14

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$318 Roundtrip, found 2 days ago

$318

Roundtrip

found 2 days ago

Select Copa flight, departing Sun, Feb 8 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Feb 14, priced at $318 found 2 days ago

Sun, Mar 15 - Sat, Mar 21

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$324 Roundtrip, found 3 days ago

$324

Roundtrip

found 3 days ago

Select Copa flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sat, Mar 21, priced at $324 found 3 days ago

Sun, Feb 8 - Sat, Feb 14

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$381 Roundtrip, found 2 days ago

$381

Roundtrip

found 2 days ago

Select United flight, departing Sun, Feb 8 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Feb 14, priced at $381 found 2 days ago

Sun, Feb 8 - Sat, Feb 14

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$485 Roundtrip, found 2 days ago

$485

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sun, Feb 8 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Feb 14, priced at $485 found 2 days ago

Sun, Feb 8 - Sat, Feb 14

BWI

Baltimore Washington Intl. Thurgood Marshall

SJO

Juan Santamaría Intl.

$548 Roundtrip, found 2 days ago

$548

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Feb 8 from Baltimore Washington Intl. Thurgood Marshall to Juan Santamaría Intl., returning Sat, Feb 14, priced at $548 found 2 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$631 Roundtrip, found 4 days ago

$631

Roundtrip

found 4 days ago

Select United flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $631 found 4 days ago

Sun, Feb 8 - Sat, Feb 14

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$659 Roundtrip, found 2 days ago

$659

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Sun, Feb 8 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Feb 14, priced at $659 found 2 days ago

Sun, Feb 8 - Sat, Feb 14

DCA

Ronald Reagan Washington National

SJO

Juan Santamaría Intl.

$663 Roundtrip, found 2 days ago

$663

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Sun, Feb 8 from Ronald Reagan Washington National to Juan Santamaría Intl., returning Sat, Feb 14, priced at $663 found 2 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$829 Roundtrip, found 4 days ago

$829

Roundtrip

found 4 days ago

Select Aeromexico flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $829 found 4 days ago

Sun, Mar 15 - Sun, Mar 22

IAD

Washington Dulles Intl.

SJO

Juan Santamaría Intl.

$1,576 Roundtrip, found 4 days ago

$1,576

Roundtrip

found 4 days ago

Select Air Canada flight, departing Sun, Mar 15 from Washington Dulles Intl. to Juan Santamaría Intl., returning Sun, Mar 22, priced at $1,576 found 4 days ago