Cheapest one-way flights from Boston to San Juan in August from 80€

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

One-Way flights

04 Aug Spirit Airlines direct
12 Aug Spirit Airlines direct
23 Aug Spirit Airlines direct
17 Aug Spirit Airlines
17 Aug Spirit Airlines direct
13 Aug jetBlue direct
15 Aug Spirit Airlines direct
07 Aug Spirit Airlines
07 Aug Spirit Airlines direct

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

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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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