Cheapest return flights from Boston to San Juan in July from 167€

AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in July 2025 (see full year).

Return flights

16 Jul - 30 Jul Spirit Airlines
20 Jul - 08 Aug Spirit Airlines
20 Jul - 31 Jul Spirit Airlines
20 Jul - 30 Jul Spirit Airlines
13 Jul - 31 Jul Spirit Airlines
13 Jul - 30 Jul Spirit Airlines
27 Jul - 08 Aug Spirit Airlines
27 Jul - 15 Aug Spirit Airlines
31 Jul - 21 Aug Spirit Airlines
31 Jul - 08 Aug Spirit Airlines
31 Jul - 15 Aug Spirit Airlines
20 Jul - 24 Jul Spirit Airlines
13 Jul - 24 Jul Spirit Airlines
13 Jul - 17 Jul Spirit Airlines
20 Jul - 07 Aug Spirit Airlines
27 Jul - 31 Jul Spirit Airlines
27 Jul - 30 Jul Spirit Airlines
27 Jul - 07 Aug Spirit Airlines direct
31 Jul - 07 Aug Spirit Airlines direct
18 Jul - 08 Aug Spirit Airlines

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

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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