Cheapest return flights from Ottawa to London in December from $575

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

Return flights

03 Dec - 08 Dec Air Transat
01 Dec - 08 Dec Air Transat
07 Dec - 14 Dec Porter Airlines (Canada) Ltd
30 Dec - 24 Jan Porter Airlines (Canada) Ltd
10 Dec - 24 Dec Porter Airlines (Canada) Ltd
15 Dec - 10 Jan Porter Airlines (Canada) Ltd
08 Dec - 19 Dec Porter Airlines (Canada) Ltd
29 Dec - 24 Jan Porter Airlines (Canada) Ltd
31 Dec - 07 Jan Porter Airlines (Canada) Ltd
10 Dec - 23 Dec Porter Airlines (Canada) Ltd
23 Dec - 17 Jan Porter Airlines (Canada) Ltd
17 Dec - 10 Jan Air Canada
17 Dec - 11 Jan Porter Airlines (Canada) Ltd
14 Dec - 28 Dec Porter Airlines (Canada) Ltd
14 Dec - 26 Dec Porter Airlines (Canada) Ltd
08 Dec - 22 Dec Porter Airlines (Canada) Ltd
14 Dec - 29 Dec Porter Airlines (Canada) Ltd
18 Dec - 10 Jan Porter Airlines (Canada) Ltd
10 Dec - 04 Jan Porter Airlines (Canada) Ltd
24 Dec - 07 Jan Porter Airlines (Canada) Ltd

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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