Cheapest return BOS–SJU flights, December

AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in December 2026 (see full year).

Return flights

08 Dec - 11 Dec Delta direct
11 Dec - 17 Dec Delta direct
11 Dec - 14 Dec Delta
31 Dec - 08 Jan Delta direct
17 Dec - 24 Dec United
17 Dec - 22 Dec United
18 Dec - 22 Dec United
17 Dec - 24 Dec Delta direct
18 Dec - 22 Dec Delta direct
17 Dec - 22 Dec Delta direct
20 Dec - 08 Jan United
20 Dec - 08 Jan Delta direct
30 Dec - 03 Jan United
30 Dec - 03 Jan Delta direct
22 Dec - 02 Jan Southwest Airlines
22 Dec - 02 Jan Delta direct

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

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