Cheapest one-way flights from Boston to San Juan in May from 76€

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

One-Way flights

20 May Spirit Airlines
13 May Spirit Airlines
01 May jetBlue direct
14 May jetBlue direct
30 May Delta
04 May Spirit Airlines
09 May Spirit Airlines
02 May Spirit Airlines
30 May Delta direct
13 May Delta direct

Also check the deals for return flights from Boston 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.