Cheapest return flights from Washington to San Juan in January from $316

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

Return flights

23 Jan - 31 Jan jetBlue
22 Jan - 26 Jan jetBlue
17 Jan - 23 Jan Delta
17 Jan - 24 Jan Delta
16 Jan - 24 Jan jetBlue
24 Jan - 01 Feb jetBlue
17 Jan - 25 Jan jetBlue
02 Jan - 06 Jan jetBlue
24 Jan - 01 Feb jetBlue direct
01 Jan - 05 Jan jetBlue

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.