Cheapest return flights from Boston to San Juan in July from $275

Best time to book flights for Boston (BOS) to San Juan (SJU) flights at AirHint

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

Return flights

09 Jul - 16 Jul Spirit Airlines
19 Jul - 26 Jul Spirit Airlines
01 Jul - 09 Jul jetBlue
21 Jul - 21 Aug Spirit Airlines
07 Jul - 11 Jul jetBlue direct
08 Jul - 15 Jul jetBlue
23 Jul - 31 Jul jetBlue
21 Jul - 28 Jul Spirit Airlines
19 Jul - 21 Jul Spirit Airlines
09 Jul - 21 Jul Spirit Airlines
01 Jul - 05 Jul Delta direct
21 Jul - 21 Aug Delta direct
30 Jul - 05 Aug Delta
20 Jul - 02 Aug Spirit Airlines
31 Jul - 07 Aug Delta direct
20 Jul - 02 Aug Delta direct
23 Jul - 03 Aug Spirit Airlines
31 Jul - 03 Aug Spirit Airlines
30 Jul - 03 Aug jetBlue
23 Jul - 03 Aug jetBlue direct

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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