Washington (DCA) to San Juan (SJU) flight deal in economy from $326

Delta Air LinesDLDelta Air Lines
Round Trip•Economy
United StatesDCA

Ronald Reagan Washington National Airport

Washington, United States
Puerto RicoSJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico
$606 USD
-46%$326 USD
Verified about 4 hours ago
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price

Tuesday, August 18th, 2026

8 round-trip options

Returning
Tue, Aug 25, 2026•7 Day Trip
$405 USD
Google Flights
Returning
Wed, Aug 26, 2026•8 Day Trip
$405 USD
Google Flights
Returning
Thu, Aug 27, 2026•9 Day Trip
$326 USD
Google Flights
Returning
Fri, Aug 28, 2026•10 Day Trip
$326 USD
Google Flights
Returning
Sat, Aug 29, 2026•11 Day Trip
$405 USD
Google Flights
Returning
Sun, Aug 30, 2026•12 Day Trip
$573 USD
Google Flights
Returning
Mon, Aug 31, 2026•13 Day Trip
$405 USD
Google Flights
Returning
Tue, Sep 1, 2026•14 Day Trip
$326 USD
Google Flights