AirHint found the following cheapest return flights from Quebec (YQB) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 31 May - 15 Jun | Air Transat | ||
| 04 May - 18 May | Air Canada | ||
| 20 May - 29 May | Air Canada | ||
| 08 May - 18 May | Air Canada | ||
| 02 May - 16 May | Air Canada | ||
| 16 May - 23 May | Air Canada |
Also check the deals for one-way flights from Quebec to Lisbon in May.
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