Cheapest one-way flights from Ottawa to London in April from $439

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

One-Way flights

04 Apr Porter Airlines (Canada) Ltd
11 Apr WestJet
01 Apr Air Canada direct
08 Apr Air Canada direct
04 Apr Air Canada direct
11 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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