Cheapest return flights from Boston to San Juan in August from 172€

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

Return flights

25 Aug - 01 Sep Spirit Airlines direct
11 Aug - 01 Sep Spirit Airlines direct
30 Aug - 01 Sep Spirit Airlines direct
11 Aug - 16 Aug Spirit Airlines direct
01 Aug - 16 Aug Delta direct
01 Aug - 02 Aug Spirit Airlines direct

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

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