Cheapest return flights from Washington to San Juan in December from 213€

AirHint found the following cheapest return flights from Washington (DCA) to San Juan (SJU) in December 2025 (see full year).

Return flights

02 Dec - 06 Dec Delta
04 Dec - 09 Dec Southwest Airlines
05 Dec - 09 Dec Southwest Airlines
17 Dec - 17 Dec United
18 Dec - 24 Dec Southwest Airlines
24 Dec - 06 Jan Southwest Airlines
24 Dec - 08 Jan United
24 Dec - 28 Dec Southwest Airlines
24 Dec - 07 Jan Southwest Airlines
17 Dec - 02 Jan Southwest Airlines
23 Dec - 06 Jan Southwest Airlines
19 Dec - 27 Dec Southwest Airlines
20 Dec - 02 Jan Southwest Airlines
28 Dec - 04 Jan Southwest Airlines
23 Dec - 03 Jan Southwest Airlines
18 Dec - 04 Jan Southwest Airlines
19 Dec - 04 Jan Southwest Airlines

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

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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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