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

Return flights

09 Mar - 22 Mar	Icelandair
03 Mar - 26 Mar	Icelandair
11 Mar - 17 Mar	Icelandair
12 Mar - 26 Mar	Icelandair
01 Mar - 20 Apr	Icelandair
06 Mar - 16 Mar	Icelandair
04 Mar - 09 Mar	Icelandair
03 Mar - 08 Mar	Icelandair
02 Mar - 10 Mar	Icelandair
03 Mar - 09 Mar	Icelandair
13 Mar - 22 Mar	Icelandair
12 Mar - 02 Apr	Icelandair
23 Mar - 02 Apr	Icelandair
23 Mar - 01 Apr	Icelandair
28 Mar - 06 Apr	Aer Lingus
31 Mar - 06 Apr	Aer Lingus
28 Mar - 14 Apr	Aer Lingus
31 Mar - 14 Apr	Aer Lingus
25 Mar - 06 Apr	Aer Lingus
23 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 327€

Return flights