Cheapest return flights from Ottawa to Lisbon in May from $610

Best time to book flights for Ottawa (YOW) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Ottawa (YOW) to Lisbon (LIS) in May 2025 (see full year).

Return flights

07 May - 27 May Air Transat
07 May - 02 Jun Air Transat
02 May - 23 May Air Transat
06 May - 27 May Air Transat
06 May - 29 May Air Transat
06 May - 13 May Air Transat
14 May - 27 May Air Transat
29 May - 05 Jun Air Canada
04 May - 13 May Air Canada
07 May - 25 May Air Transat
16 May - 16 Jun Air Transat
13 May - 19 May Air Transat
14 May - 26 May Air Transat
11 May - 04 Jun Air Canada

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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