Cheapest one-way flights from San Juan to Washington in January from 113€

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

One-Way flights

28 Jan United direct
27 Jan United direct
29 Jan United direct
26 Jan United
22 Jan Frontier Airlines
22 Jan United direct
21 Jan United direct
18 Jan Frontier Airlines
18 Jan United direct
26 Jan United direct

Also check the deals for return flights from San Juan to Washington 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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