AirHint found the following cheapest return flights from London (LON) to Toronto (YYZ) in March 2026 (see full year).

Return flights

13 Mar - 17 Mar	Icelandair
01 Mar - 08 Mar	Icelandair
09 Mar - 23 Mar	Icelandair
03 Mar - 17 Mar	Icelandair
13 Mar - 21 Mar	Austrian Airlines
14 Mar - 19 Mar	Icelandair
13 Mar - 19 Mar	Icelandair
11 Mar - 22 Mar	Icelandair
11 Mar - 30 Mar	Icelandair
06 Mar - 22 Mar	Icelandair
18 Mar - 25 Apr	Icelandair
18 Mar - 25 Apr	Air Canada	direct
17 Mar - 06 Apr	British Airways
12 Mar - 02 Apr	Lufthansa
25 Mar - 01 Apr	Air Transat	direct
22 Mar - 27 Apr	Air Transat	direct
17 Mar - 01 Apr	Air Transat	direct
03 Mar - 12 Apr	TAP
11 Mar - 05 Apr	Delta
25 Mar - 06 Apr	Aer Lingus

Also check the deals for one-way flights from London to Toronto in March.

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 London to Toronto in March from $400

Return flights