Cheapest return flights from Washington to San Juan in January from 237€

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

Return flights

20 Jan - 27 Jan United direct
24 Jan - 27 Jan United direct
23 Jan - 27 Jan United direct
31 Jan - 28 Feb United
23 Jan - 26 Jan United direct
22 Jan - 25 Jan United direct
14 Jan - 18 Jan United direct

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

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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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