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

Return flights

15 Nov - 18 Nov	Delta
09 Nov - 13 Nov	Delta
09 Nov - 14 Nov	Delta
10 Nov - 15 Nov	Southwest Airlines
15 Nov - 17 Nov	Southwest Airlines
02 Nov - 07 Nov	Southwest Airlines
13 Nov - 17 Nov	Southwest Airlines
09 Nov - 15 Nov	Southwest Airlines
02 Nov - 08 Nov	Southwest Airlines
16 Nov - 26 Nov	Southwest Airlines
30 Nov - 07 Dec	Southwest Airlines

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

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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Cheapest return flights from Washington to San Juan in November from 209€

Return flights