AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in August 2026 (see full year).
Return flights
| 17 Aug - 03 Sep | WestJet | ||
| 18 Aug - 04 Sep | WestJet | ||
| 30 Aug - 12 Sep | Air Transat | ||
| 18 Aug - 28 Aug | Air Transat | ||
| 15 Aug - 07 Sep | Porter Airlines (Canada) Ltd |
Also check the deals for one-way flights from Ottawa to London in August.
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