Cheapest one-way flights from Boston to San Juan in March from $84

Best time to book flights for Boston (BOS) to San Juan (SJU) flights at AirHint

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

One-Way flights

05 Mar Frontier Airlines
03 Mar Frontier Airlines
04 Mar Frontier Airlines
02 Mar Frontier Airlines direct
25 Mar Frontier Airlines direct
12 Mar jetBlue direct
07 Mar Frontier Airlines direct
28 Mar Frontier Airlines direct
27 Mar Frontier Airlines

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

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.

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