DCA to SJO from $356 in economy

UAUnited Airlines

Round Trip•Economy

DCA

Ronald Reagan Washington National Airport

Washington, United States

SJO

Juan Santamaría International Airport (SJO)

San José, Costa Rica

$512 USD

-30%$356 USD

Verified 14 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$356 6$388 7$388 8$500 9$538 10$489 11$388 12$538 13$492 14$500 15$538 16$549 17$500 18$608 19$607 20$559 21$490 22$572 23$500 24$500 25$430 26$532 27$490 28$490 29$522 30$522 31$634 1$532 2$532

Good Availability

45% of dates checked are available within 10% of the lowest price

Friday, July 31st, 2026

8 round-trip options

Returning

Wed, Aug 5, 2026•5 Day Trip

$634 USD

Google Flights

Returning

Thu, Aug 6, 2026•6 Day Trip

$634 USD

Google Flights

Returning

Fri, Aug 7, 2026•7 Day Trip

$644 USD

Google Flights

Returning

Sat, Aug 8, 2026•8 Day Trip

$710 USD

Google Flights

Returning

Mon, Aug 10, 2026•10 Day Trip

$681 USD

Google Flights

Returning

Wed, Aug 12, 2026•12 Day Trip

$711 USD

Google Flights

Returning

Thu, Aug 13, 2026•13 Day Trip

$708 USD

Google Flights

Returning

Fri, Aug 14, 2026•14 Day Trip

$761 USD

Google Flights

Washington (DCA) to San José (SJO) flight deal in economy from $356

Ronald Reagan Washington National Airport

Juan Santamaría International Airport (SJO)

July 2026

Friday, July 31st, 2026