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

Return flights

02 Mar - 11 Mar	jetBlue
04 Mar - 10 Mar	jetBlue
03 Mar - 10 Mar	jetBlue
09 Mar - 11 Mar	jetBlue
03 Mar - 03 Mar	jetBlue
02 Mar - 05 Mar	jetBlue
09 Mar - 12 Mar	jetBlue
10 Mar - 17 Mar	Delta
08 Mar - 12 Mar	American Airlines
01 Mar - 06 Mar	United
31 Mar - 07 Apr	jetBlue
31 Mar - 02 Apr	jetBlue
31 Mar - 06 Apr	jetBlue
30 Mar - 02 Apr	American Airlines
26 Mar - 01 Apr	jetBlue
31 Mar - 03 Apr	jetBlue
30 Mar - 03 Apr	Southwest Airlines
29 Mar - 02 Apr	jetBlue
06 Mar - 12 Apr	jetBlue
07 Mar - 11 Apr	jetBlue

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

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

Cheapest return flights from Washington to San Juan in March from $247

Return flights