Cheapest return flights from Ottawa to Lisbon in May from 610€
AirHint found the following cheapest return flights from Ottawa (YOW) to Lisbon (LIS) in May 2025 (see full year).
Return flights
| 19 May - 30 May | Air Transat | ||
| 30 May - 06 Jun | Air Transat | ||
| 11 May - 19 May | Air Canada | ||
| 19 May - 11 Jun | Air Canada | ||
| 06 May - 20 May | Air Transat | ||
| 01 May - 10 May | Air Canada | ||
| 18 May - 11 Jun | Air Canada |
Also check the deals for one-way flights from Ottawa to Lisbon in May.
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.
