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 13 hours ago
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price

Friday, December 18th, 2026

6 round-trip options

Returning
Wed, Dec 23, 2026•5 Day Trip
$1,026 USD
Google Flights
Returning
Fri, Dec 25, 2026•7 Day Trip
$1,026 USD
Google Flights
Returning
Mon, Dec 28, 2026•10 Day Trip
$1,303 USD
Google Flights
Returning
Tue, Dec 29, 2026•11 Day Trip
$1,421 USD
Google Flights
Returning
Wed, Dec 30, 2026•12 Day Trip
$1,421 USD
Google Flights
Returning
Fri, Jan 1, 2027•14 Day Trip
$1,566 USD
Google Flights