Cheapest return flights from Boston to San Juan in August from 158€

AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in August 2026 (see full year).

Return flights

04 Aug - 25 Aug Spirit Airlines
12 Aug - 25 Aug Spirit Airlines
23 Aug - 25 Aug Spirit Airlines
04 Aug - 25 Aug Spirit Airlines direct
04 Aug - 21 Aug Spirit Airlines direct
12 Aug - 25 Aug Spirit Airlines direct
12 Aug - 21 Aug Spirit Airlines direct
23 Aug - 25 Aug Spirit Airlines direct
17 Aug - 25 Aug Spirit Airlines
17 Aug - 21 Aug Spirit Airlines
18 Aug - 04 Sep Spirit Airlines direct
23 Aug - 07 Sep Spirit Airlines direct
17 Aug - 07 Sep Spirit Airlines
17 Aug - 07 Sep Spirit Airlines direct

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

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