Cheapest one-way flights from Boston to San Juan in March from 68€

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

One-Way flights

02 Mar Spirit Airlines direct
10 Mar Spirit Airlines direct
11 Mar Spirit Airlines direct
25 Mar Spirit Airlines direct
05 Mar Frontier Airlines direct
07 Mar Spirit Airlines direct
09 Mar Spirit Airlines direct
16 Mar Spirit Airlines direct
13 Mar Delta direct
26 Mar Spirit Airlines direct

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

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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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