Cheapest one-way BOS–SJU flights, June

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

One-Way flights

02 Jun jetBlue direct
06 Jun Delta direct
03 Jun Delta direct
01 Jun Delta direct
07 Jun United
08 Jun Delta
09 Jun Frontier Airlines
04 Jun Frontier Airlines
24 Jun American Airlines
16 Jun Frontier Airlines

Also check the deals for return 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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