AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in April 2026 (see full year).
Return flights
| 16 Apr - 09 May | Air Transat | ||
| 15 Apr - 22 Apr | Air Transat | ||
| 15 Apr - 29 Apr | Air Transat | ||
| 01 Apr - 12 Apr | Porter Airlines (Canada) Ltd |
Also check the deals for one-way flights from Ottawa to London in April.
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