Cheapest one-way flights from Ottawa to London in April from $375

Best time to book flights for Ottawa (YOW) to London (LHR) flights at AirHint

AirHint found the following cheapest one-way flights from Ottawa (YOW) to London (LHR) in April 2025 (see full year).

One-Way flights

19 Apr WestJet
18 Apr Air Canada
19 Apr Air Canada direct

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

Skyscanner

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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