Cheapest return flights from Boston to San Juan in August from $294

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 August 2025 (see full year).

Return flights

22 Aug - 28 Aug Delta direct
22 Aug - 29 Aug Delta direct
23 Aug - 29 Aug Delta direct
23 Aug - 30 Aug Delta
24 Aug - 30 Aug Delta
22 Aug - 27 Aug jetBlue
16 Aug - 20 Aug jetBlue
21 Aug - 26 Aug jetBlue
21 Aug - 04 Sep jetBlue
23 Aug - 02 Sep jetBlue direct
19 Aug - 25 Aug Spirit Airlines
24 Aug - 30 Aug jetBlue direct
21 Aug - 04 Sep Delta direct
24 Aug - 01 Sep Spirit Airlines
24 Aug - 01 Sep jetBlue direct

Also check the deals for one-way flights from Boston to San Juan 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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