Cheapest one-way flights from Boston to San Juan in May from 60€

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

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

One-Way flights

10 May Spirit Airlines
10 May Delta direct
25 May United
25 May Delta direct

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

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.

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