Cheapest one-way flights from Ottawa to London in December from $302

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

One-Way flights

03 Dec Air Canada
10 Dec Porter Airlines (Canada) Ltd
07 Dec Air Transat
16 Dec Porter Airlines (Canada) Ltd
21 Dec Porter Airlines (Canada) Ltd
19 Dec Air Canada
20 Dec Air Canada
18 Dec Porter Airlines (Canada) Ltd
22 Dec Porter Airlines (Canada) Ltd

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

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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