Cheapest return BOS–SJU flights, June

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

Return flights

03 Jun - 10 Jun Delta direct
01 Jun - 05 Jun Delta direct
06 Jun - 12 Jun Delta direct
07 Jun - 10 Jun Delta direct
01 Jun - 04 Jun Delta direct
02 Jun - 05 Jun Delta direct
08 Jun - 12 Jun Delta
03 Jun - 03 Jun Delta direct
03 Jun - 05 Jun Delta direct
05 Jun - 12 Jun Delta direct
22 Jun - 30 Jul Frontier Airlines
29 Jun - 08 Jul Frontier Airlines
28 Jun - 09 Jul Delta
30 Jun - 07 Jul Frontier Airlines
29 Jun - 08 Jul Delta direct
30 Jun - 07 Jul Delta direct

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

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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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