Cheapest return flights from San Juan to Montreal in December from 433€

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

Return flights

30 Dec - 05 Jan Frontier Airlines
26 Dec - 03 Jan Frontier Airlines
28 Dec - 04 Jan Arajet
27 Dec - 03 Jan Frontier Airlines
30 Dec - 04 Jan Frontier Airlines
28 Dec - 03 Jan Arajet
28 Dec - 04 Jan Air Transat direct

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

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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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