AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in June 2026 (see full year).
Return flights
| 05 Jun - 14 Jun | Air Transat | ||
| 13 Jun - 11 Jul | Air Transat | ||
| 06 Jun - 11 Jul | Air Transat | ||
| 01 Jun - 08 Jun | WestJet | ||
| 13 Jun - 12 Jul | Air Transat | ||
| 18 Jun - 01 Jul | WestJet | ||
| 12 Jun - 12 Jul | Air Transat | direct |
Also check the deals for one-way flights from Ottawa to London in June.
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