Flights to Isla Caja de Muertos from Washington - ￥11,920

View ￥11,920 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from Washington to Isla Caja de Muertos

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ￥11,920 for one-way flights and ￥27,540 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Aug 18 - Fri, Aug 22
DCA
Washington
SJU
San Juan
￥27,540 Roundtrip, found 1 day ago
￥27,540
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 18 from Washington to San Juan, returning Fri, Aug 22, priced at ￥27,540 found 1 day ago
Delta
Mon, Aug 18 - Fri, Aug 22
DCA
Washington
SJU
San Juan
￥31,140 Roundtrip, found 1 day ago
￥31,140
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 18 from Washington to San Juan, returning Fri, Aug 22, priced at ￥31,140 found 1 day ago
American Airlines
Mon, Aug 18 - Thu, Aug 21
BWI
Baltimore
SJU
San Juan
￥32,540 Roundtrip, found 1 day ago
￥32,540
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 18 from Baltimore to San Juan, returning Thu, Aug 21, priced at ￥32,540 found 1 day ago
American Airlines
Mon, Aug 18 - Thu, Aug 21
DCA
Washington
SJU
San Juan
￥32,540 Roundtrip, found 1 day ago
￥32,540
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 18 from Washington to San Juan, returning Thu, Aug 21, priced at ￥32,540 found 1 day ago
American Airlines
Mon, Aug 18 - Fri, Aug 22
DCA
Washington
SJU
San Juan
￥32,640 Roundtrip, found 1 day ago
￥32,640
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 18 from Washington to San Juan, returning Fri, Aug 22, priced at ￥32,640 found 1 day ago
United
Mon, Aug 18 - Fri, Aug 22
DCA
Washington
SJU
San Juan
￥34,040 Roundtrip, found 1 day ago
￥34,040
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 18 from Washington to San Juan, returning Fri, Aug 22, priced at ￥34,040 found 1 day ago

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

May is typically the cheapest month to fly

From ￥13,766 - ￥48,192 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.