Cheapest return flights from Boston to San Juan in July from 216€

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

Return flights

21 Jul - 28 Jul Spirit Airlines direct
15 Jul - 21 Jul Spirit Airlines direct
15 Jul - 28 Jul Spirit Airlines direct
27 Jul - 28 Jul Spirit Airlines direct
21 Jul - 27 Jul Delta direct
23 Jul - 28 Jul Delta direct
21 Jul - 02 Aug Spirit Airlines direct
15 Jul - 27 Jul Spirit Airlines direct
30 Jul - 02 Aug Delta direct
15 Jul - 02 Aug Spirit Airlines direct
27 Jul - 16 Aug Spirit Airlines direct
27 Jul - 02 Aug Spirit Airlines direct
23 Jul - 27 Jul Spirit Airlines direct
23 Jul - 02 Aug Spirit Airlines direct
30 Jul - 16 Aug Spirit Airlines direct

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

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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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