Cheapest return flights from Montreal to San Juan in December from $338

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

Return flights

07 Dec - 14 Dec Porter Airlines (Canada) Ltd
03 Dec - 07 Dec Porter Airlines (Canada) Ltd
01 Dec - 08 Dec Porter Airlines (Canada) Ltd
14 Dec - 21 Dec Porter Airlines (Canada) Ltd
14 Dec - 24 Dec United
09 Dec - 17 Dec United
12 Dec - 17 Dec United
05 Dec - 12 Dec Porter Airlines (Canada) Ltd
08 Dec - 15 Dec United
10 Dec - 17 Dec United
28 Dec - 18 Jan Porter Airlines (Canada) Ltd
30 Dec - 08 Jan WestJet
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
28 Dec - 11 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 Jan Porter Airlines (Canada) Ltd
25 Dec - 15 Jan Porter Airlines (Canada) Ltd
27 Dec - 09 Jan Porter Airlines (Canada) Ltd
21 Dec - 11 Jan Porter Airlines (Canada) Ltd
29 Dec - 05 Jan WestJet
26 Dec - 09 Jan Porter Airlines (Canada) Ltd

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

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