Cheapest one-way flights from Boston to San Juan in March from 54€

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

One-Way flights

01 Mar Spirit Airlines direct
10 Mar Spirit Airlines direct
04 Mar Spirit Airlines direct
17 Mar Spirit Airlines direct
26 Mar Spirit Airlines direct
18 Mar Spirit Airlines direct
31 Mar Spirit Airlines direct
03 Mar Spirit Airlines direct
11 Mar Spirit Airlines direct
24 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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