AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in August 2026 (see full year).
Return flights
| 06 Aug - 17 Aug | WestJet | ||
| 07 Aug - 18 Aug | WestJet | ||
| 19 Aug - 02 Sep | WestJet | ||
| 14 Aug - 23 Aug | Air Transat | direct | |
| 27 Aug - 08 Sep | WestJet | ||
| 07 Aug - 18 Aug | Air Transat | direct |
Also check the deals for one-way flights from Ottawa to London in August.
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