Cheapest return flights from Washington to San Juan in January from 242€

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

Return flights

17 Jan - 24 Jan United
09 Jan - 15 Jan Delta
09 Jan - 16 Jan Delta
07 Jan - 15 Jan United
20 Jan - 27 Jan Delta
09 Jan - 17 Jan Delta
08 Jan - 16 Jan Southwest Airlines
08 Jan - 23 Jan Southwest Airlines
15 Jan - 16 Jan Southwest Airlines
15 Jan - 23 Jan Southwest Airlines
24 Jan - 01 Feb United

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

Skyscanner

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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