Cheapest one-way flights from Boston to San Juan in June from $88

AirHint found the following cheapest one-way flights from Boston (BOS) to San Juan (SJU) in June 2025 (see full year).

One-Way flights

29 Jun Frontier Airlines
30 Jun Frontier Airlines
28 Jun Frontier Airlines
26 Jun Frontier Airlines
29 Jun Spirit Airlines direct
27 Jun Frontier Airlines
28 Jun jetBlue direct
30 Jun Delta direct
27 Jun jetBlue direct
26 Jun jetBlue direct

Also check the deals for return flights from Boston to San Juan in June.

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.