Cheapest return flights from San Juan to Boston in December from $125

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

Return flights

30 Dec - 31 Dec Frontier Airlines direct
25 Dec - 01 Jan Spirit Airlines direct
30 Dec - 10 Jan Frontier Airlines direct
30 Dec - 03 Jan Frontier Airlines direct
30 Dec - 04 Jan Frontier Airlines direct
29 Dec - 31 Dec Spirit Airlines direct
25 Dec - 30 Dec Spirit Airlines direct
24 Dec - 01 Jan Spirit Airlines
27 Dec - 31 Dec Spirit Airlines direct
24 Dec - 01 Jan Spirit Airlines direct
29 Dec - 01 Jan Spirit Airlines direct
27 Dec - 01 Jan Spirit Airlines direct
24 Dec - 07 Jan Spirit Airlines
24 Dec - 02 Jan Spirit Airlines
26 Dec - 31 Dec Spirit Airlines direct
28 Dec - 31 Dec Spirit Airlines direct
25 Dec - 27 Dec Frontier Airlines direct
24 Dec - 28 Dec Spirit Airlines
31 Dec - 31 Dec Spirit Airlines
24 Dec - 28 Dec Spirit Airlines direct

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

Powered by

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 Boston

Cheap car rent in Boston

Feel free to contact us with any feedback or request another flight research.