Cheapest return flights from San Juan to Boston in August from $176

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

Return flights

07 Aug - 09 Aug Spirit Airlines
07 Aug - 26 Aug Spirit Airlines
07 Aug - 17 Aug Spirit Airlines
07 Aug - 27 Aug Spirit Airlines
07 Aug - 18 Aug Spirit Airlines
07 Aug - 19 Aug Spirit Airlines
07 Aug - 13 Aug Spirit Airlines
07 Aug - 25 Aug Spirit Airlines
07 Aug - 16 Aug Spirit Airlines
07 Aug - 23 Aug Spirit Airlines
23 Aug - 04 Sep Spirit Airlines
23 Aug - 02 Sep Spirit Airlines
23 Aug - 01 Sep Spirit Airlines
23 Aug - 11 Sep Spirit Airlines
16 Aug - 04 Sep Spirit Airlines
16 Aug - 02 Sep Spirit Airlines
16 Aug - 01 Sep Spirit Airlines
21 Aug - 04 Sep Spirit Airlines
21 Aug - 02 Sep Spirit Airlines
21 Aug - 01 Sep Spirit Airlines

Also check the deals for one-way 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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