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

Sunday, July 5th, 2026

7 round-trip options

Returning
Sat, Jul 11, 20266 Day Trip
$851 USD
Returning
Sun, Jul 12, 20267 Day Trip
$1,164 USD
Returning
Mon, Jul 13, 20268 Day Trip
$1,249 USD
Returning
Wed, Jul 15, 202610 Day Trip
$1,054 USD
Returning
Thu, Jul 16, 202611 Day Trip
$547 USD
Returning
Fri, Jul 17, 202612 Day Trip
$602 USD
Returning
Sat, Jul 18, 202613 Day Trip
$804 USD