Cheap flights from Baltimore to Puerto Rico Island

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

Popular airlines from Baltimore to Puerto Rico Island

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Cheap Flights from Baltimore (WAS) to Puerto Rico Island (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 1 hour ago
AU$326
Return
found 1 hour ago
Select Delta flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$326 found 1 hour ago
Delta
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$379 Return, found 1 hour ago
AU$379
Return
found 1 hour ago
Select Delta flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$379 found 1 hour ago
Delta
Mon, 1 Sep. - Fri, 10 Oct.
DCA
Washington
SJU
San Juan
AU$381 Return, found 2 days ago
AU$381
Return
found 2 days ago
Select Delta flight, departing Mon, 1 Sep. from Washington to San Juan, returning Fri, 10 Oct., priced at AU$381 found 2 days ago
Delta
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$410 Return, found 1 hour ago
AU$410
Return
found 1 hour ago
Select Delta flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$410 found 1 hour ago
United
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$463 Return, found 1 hour ago
AU$463
Return
found 1 hour ago
Select United flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$463 found 1 hour ago
American Airlines
Tue, 16 Sep. - Fri, 19 Sep.
DCA
Washington
SJU
San Juan
AU$490 Return, found 1 hour ago
AU$490
Return
found 1 hour ago
Select American Airlines flight, departing Tue, 16 Sep. from Washington to San Juan, returning Fri, 19 Sep., priced at AU$490 found 1 hour ago

Find the cheapest month to fly from Baltimore (BWI) to San Juan (SJU)

May is typically the cheapest month to fly

From AU$147 - AU$712 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.