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

Return flights

06 Apr - 11 Apr	jetBlue
07 Apr - 11 Apr	jetBlue
04 Apr - 07 Apr	jetBlue
08 Apr - 11 Apr	jetBlue
02 Apr - 05 Apr	jetBlue
02 Apr - 07 Apr	jetBlue
02 Apr - 06 Apr	jetBlue
09 Apr - 09 Apr	jetBlue
15 Apr - 20 Apr	jetBlue
28 Apr - 03 May	jetBlue
09 Apr - 13 Apr	jetBlue
29 Apr - 03 May	jetBlue
30 Apr - 03 May	jetBlue

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

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 April from $193

Return flights