AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in August 2026 (see full year).
Return flights
| 17 Aug - 18 Aug | Air Transat | ||
| 11 Aug - 28 Aug | Air Transat | ||
| 13 Aug - 30 Aug | Air Transat | ||
| 14 Aug - 30 Aug | Air Transat |
Also check the deals for one-way flights from Ottawa to London in August.
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