AirHint found the following cheapest return flights from Ottawa (YOW) to Lisbon (LIS) in June 2026 (see full year).
Return flights
| 01 Jun - 08 Jun | Air Canada | ||
| 11 Jun - 21 Jun | Air Canada | ||
| 21 Jun - 07 Jul | WestJet | ||
| 23 Jun - 10 Jul | Air Transat |
Also check the deals for one-way flights from Ottawa to Lisbon in June.
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