Cheapest return flights from Ottawa to Lisbon in August from $630

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 August 2025 (see full year).

Return flights

25 Aug - 19 Sep Air Transat
25 Aug - 18 Sep Air Transat
27 Aug - 03 Sep Air Canada
26 Aug - 10 Sep Air Canada
25 Aug - 17 Sep Air Canada
26 Aug - 09 Sep Air Canada
27 Aug - 08 Sep Air Canada
27 Aug - 16 Sep Air Canada
25 Aug - 22 Sep Air Canada
25 Aug - 02 Sep Air Canada
19 Aug - 26 Aug Air Canada
07 Aug - 12 Aug Air Transat
16 Aug - 31 Aug Air Transat
26 Aug - 31 Aug Air Canada
01 Aug - 08 Aug Air Canada
01 Aug - 15 Aug Air France

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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