Cheapest one-way flights from Ottawa to London in April from $366

AirHint found the following cheapest one-way flights from Ottawa (YOW) to London (LHR) in April 2026 (see full year).

One-Way flights

23 Apr Porter Airlines (Canada) Ltd
27 Apr Porter Airlines (Canada) Ltd
18 Apr Porter Airlines (Canada) Ltd
14 Apr WestJet
22 Apr Porter Airlines (Canada) Ltd
17 Apr Porter Airlines (Canada) Ltd
27 Apr Lufthansa direct
22 Apr Air Canada direct
18 Apr Air Canada direct

Also check the deals for return flights from Ottawa to London in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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