Cheapest one-way flights from Boston to San Juan in March from 79€

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

03 Mar Frontier Airlines
05 Mar Frontier Airlines direct
03 Mar Frontier Airlines direct
01 Mar Frontier Airlines
24 Mar Delta direct
11 Mar United
10 Mar Frontier Airlines direct
02 Mar Spirit Airlines direct
01 Mar Frontier Airlines direct
08 Mar Frontier Airlines direct

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan