AirHint found the following cheapest return flights from Ottawa (YOW) to London (LHR) in January 2026 (see full year).

Return flights

16 Jan - 23 Jan	Air France
14 Jan - 25 Jan	Air France
25 Jan - 07 Feb	Air France
21 Jan - 13 Feb	Air France
30 Jan - 16 Feb	Air Canada
14 Jan - 25 Jan	Air Canada	direct
21 Jan - 13 Feb	Lufthansa	direct
16 Jan - 23 Jan	Lufthansa	direct
28 Jan - 02 Feb	Air Canada
07 Jan - 14 Jan	Air Canada
09 Jan - 16 Jan	Lufthansa	direct
14 Jan - 16 Jan	Condor
12 Jan - 14 Jan	Air Canada
13 Jan - 14 Jan	Air Canada
14 Jan - 16 Jan	Lufthansa	direct

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

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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Cheapest return flights from Ottawa to London in January from $665

Return flights