Cheapest return flights from Washington to San Juan in March from $152

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

Return flights

02 Mar - 05 Mar Frontier Airlines
02 Mar - 07 Mar Frontier Airlines
07 Mar - 09 Mar Frontier Airlines
07 Mar - 11 Mar Frontier Airlines
08 Mar - 12 Mar Frontier Airlines
01 Mar - 05 Mar Frontier Airlines
24 Mar - 31 Mar United direct
01 Mar - 06 Mar United direct
01 Mar - 05 Mar United direct
09 Mar - 13 Mar Frontier Airlines
30 Mar - 05 Apr Frontier Airlines
27 Mar - 05 Apr Frontier Airlines
27 Mar - 04 Apr Frontier Airlines
28 Mar - 05 Apr Frontier Airlines
27 Mar - 04 Apr United direct

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

Powered by

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.