Cheapest one-way flights from Ottawa to London in April from 300€

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

04 Apr Porter Airlines (Canada) Ltd
08 Apr WestJet
09 Apr Porter Airlines (Canada) Ltd
15 Apr Porter Airlines (Canada) Ltd
16 Apr Porter Airlines (Canada) Ltd
05 Apr Porter Airlines (Canada) Ltd
28 Apr Porter Airlines (Canada) Ltd
18 Apr Porter Airlines (Canada) Ltd
28 Apr Air Canada direct
09 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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