Cheapest return flights from Ottawa to London in December from 633€

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

Return flights

30 Dec - 30 Jan Air Transat
30 Dec - 17 Jan Air Transat
10 Dec - 17 Dec Air France
12 Dec - 26 Dec Porter Airlines (Canada) Ltd
12 Dec - 15 Dec Porter Airlines (Canada) Ltd
14 Dec - 19 Dec Porter Airlines (Canada) Ltd
10 Dec - 14 Dec Air France
12 Dec - 17 Dec Porter Airlines (Canada) Ltd
14 Dec - 27 Dec Porter Airlines (Canada) Ltd
11 Dec - 25 Dec Air Transat
14 Dec - 17 Dec Porter Airlines (Canada) Ltd
14 Dec - 16 Dec Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
29 Dec - 06 Jan Porter Airlines (Canada) Ltd
15 Dec - 05 Jan Porter Airlines (Canada) Ltd
17 Dec - 07 Jan Porter Airlines (Canada) Ltd
29 Dec - 05 Jan Porter Airlines (Canada) Ltd
29 Dec - 02 Jan Porter Airlines (Canada) Ltd
26 Dec - 03 Jan Air Transat

Also check the deals for one-way flights from Ottawa to London in December.

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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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