Cheapest return flights from Ottawa to Lisbon in May from $628

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

31 May - 26 Jun Air Canada
17 May - 24 May Porter Airlines (Canada) Ltd
06 May - 22 May Air Canada
08 May - 16 May Air Canada
19 May - 30 May Air Transat
12 May - 19 May Air France
13 May - 19 May Air France
10 May - 24 May Porter Airlines (Canada) Ltd
08 May - 19 May Porter Airlines (Canada) Ltd
16 May - 20 May Porter Airlines (Canada) Ltd
16 May - 24 May Porter Airlines (Canada) Ltd

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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