Cheapest one-way flights from San Juan to Boston in August from $78

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

One-Way flights

07 Aug Spirit Airlines direct
21 Aug Spirit Airlines
23 Aug Spirit Airlines
06 Aug Spirit Airlines
02 Aug Spirit Airlines
16 Aug Spirit Airlines
06 Aug jetBlue direct
10 Aug jetBlue direct
02 Aug jetBlue direct
13 Aug jetBlue direct

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

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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