Cheapest one-way flights from Boston to San Juan in October from 67€

AirHint found the following cheapest one-way flights from Boston (BOS) to San Juan (SJU) in October 2025 (see full year).

One-Way flights

07 Oct Spirit Airlines
02 Oct Spirit Airlines
03 Oct Spirit Airlines
25 Oct Spirit Airlines
31 Oct Spirit Airlines
22 Oct Spirit Airlines
28 Oct Spirit Airlines
21 Oct Spirit Airlines
30 Oct Spirit Airlines
04 Oct Spirit Airlines

Also check the deals for return flights from Boston to San Juan in October.

Skyscanner

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.