Cheapest one-way flights from Washington to San Juan in May from 75€

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

One-Way flights

12 May Frontier Airlines
15 May Frontier Airlines
19 May Frontier Airlines
29 May Frontier Airlines
20 May Frontier Airlines
02 May Frontier Airlines
03 May Frontier Airlines
13 May Frontier Airlines
23 May Frontier Airlines
26 May Delta

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

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.