Cheapest return flights from Boston to San Juan in October from 262€

Best time to book flights for Boston (BOS) to San Juan (SJU) flights at AirHint

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

Return flights

01 Oct - 08 Oct jetBlue direct
04 Oct - 11 Oct United
22 Oct - 27 Oct Delta direct
04 Oct - 11 Oct Delta direct
08 Oct - 17 Oct Delta direct
25 Oct - 21 Nov Delta direct
23 Oct - 25 Oct United
27 Oct - 23 Nov United

Also check the deals for one-way 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