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

Return flights

01 Nov - 08 Nov	United	direct
01 Nov - 05 Nov	United	direct
13 Nov - 18 Nov	United	direct
13 Nov - 19 Nov	United	direct
14 Nov - 19 Nov	United
10 Nov - 15 Nov	Delta
15 Nov - 21 Nov	United
03 Nov - 17 Nov	United
07 Nov - 11 Nov	United	direct
07 Nov - 12 Nov	United	direct
26 Nov - 03 Dec	Delta
27 Nov - 02 Dec	United	direct
26 Nov - 02 Dec	Delta
30 Nov - 07 Dec	United
27 Nov - 01 Dec	United	direct
26 Nov - 01 Dec	United

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 132€

Return flights