AirHint found the following cheapest return flights from Ottawa (YOW) to Lisbon (LIS) in May 2026 (see full year).
Return flights
| 01 May - 25 May | Air France | ||
| 11 May - 23 May | Air France | ||
| 14 May - 21 May | Air Canada | ||
| 29 May - 10 Jun | Air France | ||
| 29 May - 11 Jun | Air France | ||
| 29 May - 08 Jun | Air France | ||
| 01 May - 05 Jun | Air France |
Also check the deals for one-way flights from Ottawa to Lisbon in May.
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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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