Cheapest return flights from Ottawa to Lisbon in August from $772

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

Return flights

21 Aug - 28 Aug Air Canada
28 Aug - 03 Sep Air Canada
22 Aug - 01 Sep Air Canada
25 Aug - 31 Aug Porter Airlines (Canada) Ltd
11 Aug - 16 Aug WestJet

Also check the deals for one-way flights from Ottawa to Lisbon in August.

Skyscanner

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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