Cheapest return flights from Washington to San Juan in August from $369

AirHint found the following cheapest return flights from Washington (DCA) to San Juan (SJU) in August 2026 (see full year).

Return flights

26 Aug - 30 Aug Southwest Airlines
13 Aug - 20 Aug Southwest Airlines
14 Aug - 21 Aug Southwest Airlines
19 Aug - 26 Aug Southwest Airlines
17 Aug - 24 Aug Southwest Airlines
13 Aug - 16 Aug Southwest Airlines
16 Aug - 23 Aug Southwest Airlines
07 Aug - 10 Aug Southwest Airlines
01 Aug - 08 Aug Southwest Airlines
07 Aug - 10 Aug jetBlue direct

Also check the deals for one-way flights from Washington to San Juan in August.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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