San José (SJO) to Washington (IAD) flight deal in economy from $342
SJOJuan Santamaría International Airport (SJO)
San José, Costa Rica
IADWashington Dulles International Airport
Washington, United States
$495 USD
-31%$342 USD
Verified 13 days agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Rare Availability
6% of dates checked are available within 10% of the lowest price
Tuesday, August 25th, 2026
7 round-trip options
Returning
Mon, Aug 31, 2026•6 Day Trip
$488 USD
Returning
Tue, Sep 1, 2026•7 Day Trip
$548 USD
Returning
Wed, Sep 2, 2026•8 Day Trip
$595 USD
Returning
Fri, Sep 4, 2026•10 Day Trip
$578 USD
Returning
Sat, Sep 5, 2026•11 Day Trip
$578 USD
Returning
Sun, Sep 6, 2026•12 Day Trip
$488 USD
Returning
Mon, Sep 7, 2026•13 Day Trip
$578 USD