AirHint found the following cheapest return flights from Sofia (SOF) to Montreal (YUL) in May 2026 (see full year).
Return flights
| 04 May - 20 May | Air Canada | ||
| 02 May - 21 May | Air Canada | ||
| 20 May - 25 May | Air France |
Also check the deals for one-way flights from Sofia to Montreal in May.
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