AirHint found the following cheapest one-way flights from Montreal (YUL) to San Juan (SJU) in January 2026 (see full year).
One-Way flights
| 11 Jan | United | ||
| 04 Jan | Air Canada | ||
| 17 Jan | Porter Airlines (Canada) Ltd | ||
| 04 Jan | Air Transat | direct | |
| 11 Jan | Air Transat | direct | |
| 10 Jan | Porter Airlines (Canada) Ltd | ||
| 16 Jan | WestJet |
Also check the deals for return flights from Montreal to San Juan in January.
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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