Cheapest return flights from Montreal to San Juan in December from 322€

AirHint found the following cheapest return flights from Montreal (YUL) to San Juan (SJU) in December 2026 (see full year).

Return flights

02 Dec - 09 Dec United
06 Dec - 13 Dec Air Canada
05 Dec - 12 Dec Air Canada
01 Dec - 08 Dec United
07 Dec - 14 Dec United
16 Dec - 29 Dec Porter Airlines (Canada) Ltd
27 Dec - 03 Jan Air Transat direct
17 Dec - 28 Dec WestJet
18 Dec - 30 Dec United
23 Dec - 04 Jan United

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

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