Cheap flights from Washington to Isla Caja de Muertos

View AU$118 flight on Mon, 5 Jan. 2026Opens in a new window

Popular airlines from Washington to Isla Caja de Muertos

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Washington (WAS) to Isla Caja de Muertos (SJU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$326 Return, found 20 hours ago
AU$326
Return
found 20 hours ago
Select Delta flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$326 found 20 hours ago
Delta
Sun, 21 Sep. - Thu, 25 Sep.
IAD
Washington
SJU
San Juan
AU$363 Return, found 5 days ago
AU$363
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep. from Washington to San Juan, returning Thu, 25 Sep., priced at AU$363 found 5 days ago
Delta
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$379 Return, found 20 hours ago
AU$379
Return
found 20 hours ago
Select Delta flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$379 found 20 hours ago
Delta
Mon, 1 Sep. - Fri, 10 Oct.
DCA
Washington
SJU
San Juan
AU$381 Return, found 3 days ago
AU$381
Return
found 3 days ago
Select Delta flight, departing Mon, 1 Sep. from Washington to San Juan, returning Fri, 10 Oct., priced at AU$381 found 3 days ago
United
Sun, 21 Sep. - Thu, 25 Sep.
IAD
Washington
SJU
San Juan
AU$395 Return, found 5 days ago
AU$395
Return
found 5 days ago
Select United flight, departing Sun, 21 Sep. from Washington to San Juan, returning Thu, 25 Sep., priced at AU$395 found 5 days ago
American Airlines
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$490 Return, found 20 hours ago
AU$490
Return
found 20 hours ago
Select American Airlines flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$490 found 20 hours ago

Find the cheapest month to fly from Washington (WAS) to San Juan (SJU)

May is typically the cheapest month to fly

From AU$147 - AU$536 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.