AirHint found the following cheapest return flights from Montreal (YUL) to Buenos Aires (AEP) in January 2026 (see full year).
Return flights
| 21 Jan - 06 Feb | Arajet | ||
| 21 Jan - 28 Jan | Arajet | ||
| 24 Jan - 21 Feb | Air Canada | ||
| 24 Jan - 18 Feb | Copa | ||
| 24 Jan - 17 Feb | Avianca | ||
| 28 Jan - 04 Feb | Avianca | ||
| 30 Jan - 06 Feb | Avianca |
Also check the deals for one-way flights from Montreal to Buenos Aires in January.
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