Cheapest one-way flights from Boston to San Juan in June from 129€

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

One-Way flights

29 Jun Spirit Airlines direct
05 Jun Delta direct
13 Jun Spirit Airlines
19 Jun United
19 Jun Spirit Airlines direct
26 Jun Spirit Airlines direct
12 Jun Spirit Airlines
24 Jun Spirit Airlines
24 Jun Spirit Airlines direct
18 Jun Spirit Airlines direct

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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