Cheapest return flights from Montreal to San Juan in December from $428

Best time to book flights for Montreal (YUL) to San Juan (SJU) flights at AirHint

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 Air Canada
14 Dec - 21 Dec Air Canada direct
13 Dec - 20 Dec Air Canada
06 Dec - 13 Dec Air Canada
01 Dec - 08 Dec WestJet
05 Dec - 12 Dec WestJet
04 Dec - 11 Dec WestJet
10 Dec - 17 Dec WestJet
11 Dec - 18 Dec WestJet
28 Dec - 04 Jan WestJet
13 Dec - 22 Dec WestJet
30 Dec - 06 Jan WestJet
26 Dec - 02 Jan Arajet
28 Dec - 04 Jan Air Transat direct

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

Skyscanner

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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