Cheapest return flights from Boston to San Juan in January from $92

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

AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in January 2025 (see full year).

Return flights

19 Jan - 28 Jan Frontier Airlines direct
22 Jan - 29 Jan Frontier Airlines direct
22 Jan - 28 Jan Frontier Airlines direct
12 Jan - 23 Jan Frontier Airlines direct
11 Jan - 14 Jan Frontier Airlines
18 Jan - 28 Jan Frontier Airlines
25 Jan - 29 Jan Frontier Airlines direct
12 Jan - 16 Jan Frontier Airlines direct
26 Jan - 29 Jan Frontier Airlines direct
07 Jan - 14 Jan Frontier Airlines
29 Jan - 06 Feb Frontier Airlines
19 Jan - 03 Feb Frontier Airlines
30 Jan - 05 Feb Spirit Airlines
26 Jan - 01 Feb Frontier Airlines direct
22 Jan - 02 Feb Frontier Airlines
22 Jan - 02 Feb Frontier Airlines direct
08 Jan - 25 Feb Spirit Airlines
24 Jan - 01 Feb Spirit Airlines
29 Jan - 06 Feb Frontier Airlines direct
19 Jan - 03 Feb Frontier Airlines direct

Also check the deals for one-way flights from Boston to San Juan in January.

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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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