Cheapest return flights from Montreal to San Juan in December from $298

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

Return flights

13 Dec - 21 Dec WestJet
05 Dec - 14 Dec Porter Airlines (Canada) Ltd
07 Dec - 14 Dec Porter Airlines (Canada) Ltd
03 Dec - 07 Dec Porter Airlines (Canada) Ltd
05 Dec - 12 Dec Porter Airlines (Canada) Ltd
06 Dec - 13 Dec United
02 Dec - 09 Dec United
14 Dec - 21 Dec Porter Airlines (Canada) Ltd
13 Dec - 20 Dec WestJet
01 Dec - 08 Dec Porter Airlines (Canada) Ltd
28 Dec - 11 Jan Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
30 Dec - 06 Jan Porter Airlines (Canada) Ltd
26 Dec - 09 Jan Porter Airlines (Canada) Ltd
31 Dec - 05 Jan Air Transat
29 Dec - 05 Jan WestJet
28 Dec - 05 Jan Porter Airlines (Canada) Ltd
26 Dec - 06 Jan Porter Airlines (Canada) Ltd
28 Dec - 11 Jan Air Transat direct
23 Dec - 04 Jan WestJet

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

Cheap car rent in San Juan

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