San José (SJO) to Washington (IAD) flight deal in economy from $342

Friday, July 31st, 2026

7 round-trip options

Returning
Thu, Aug 6, 20266 Day Trip
$504 USD
Returning
Fri, Aug 7, 20267 Day Trip
$504 USD
Returning
Sat, Aug 8, 20268 Day Trip
$504 USD
Returning
Mon, Aug 10, 202610 Day Trip
$472 USD
Returning
Tue, Aug 11, 202611 Day Trip
$472 USD
Returning
Wed, Aug 12, 202612 Day Trip
$472 USD
Returning
Thu, Aug 13, 202613 Day Trip
$515 USD