AirHint found the following cheapest return flights from Ontario (ONT) to London (LHR) in February 2026 (see full year).

Return flights

24 Feb - 18 Mar	KLM
23 Feb - 10 Mar	British Airways
24 Feb - 10 Mar	British Airways
25 Feb - 10 Mar	British Airways
22 Feb - 12 Mar	British Airways
24 Feb - 12 Mar	British Airways
24 Feb - 03 Mar	Virgin Atlantic
25 Feb - 04 Mar	Air France
21 Feb - 03 Mar	KLM
24 Feb - 09 Mar	British Airways
15 Feb - 26 Feb	British Airways
10 Feb - 19 Feb	British Airways
11 Feb - 26 Feb	British Airways
20 Feb - 28 Feb	Air France
11 Feb - 18 Feb	Virgin Atlantic
15 Feb - 27 Feb	KLM
10 Feb - 18 Feb	Air France
16 Feb - 25 Feb	Air France
16 Feb - 27 Feb	Air France
17 Feb - 27 Feb	KLM

Also check the deals for one-way flights from Ontario to London in February.

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 Ontario to London in February from 579€

Return flights