Cheapest one-way flights from San Juan to Boston in August from 81€

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

One-Way flights

18 Aug Spirit Airlines direct
25 Aug Spirit Airlines direct
26 Aug Spirit Airlines direct
28 Aug Spirit Airlines direct
21 Aug Spirit Airlines direct
12 Aug Spirit Airlines direct
08 Aug Spirit Airlines direct
20 Aug Spirit Airlines direct
10 Aug Spirit Airlines direct

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