AirHint found the following cheapest one-way flights from Montreal (YUL) to San Juan (SJU) in January 2027 (see full year).
One-Way flights
| 03 Jan | WestJet | ||
| 08 Jan | United | ||
| 03 Jan | Air Transat | direct |
Also check the deals for return flights from Montreal to San Juan in January.
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