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

Return flights

10 Mar - 19 Mar	Virgin Atlantic
05 Mar - 19 Mar	Delta
03 Mar - 08 Mar	Delta
07 Mar - 17 Mar	Delta
05 Mar - 08 Mar	Delta
12 Mar - 17 Mar	Delta
10 Mar - 17 Mar	Delta
04 Mar - 19 Mar	Virgin Atlantic
02 Mar - 09 Mar	SWISS
03 Mar - 09 Mar	SWISS
03 Mar - 06 Apr	LOT
27 Mar - 11 Apr	LOT
30 Mar - 05 Apr	KLM
30 Mar - 08 Apr	KLM
31 Mar - 08 Apr	KLM
23 Mar - 01 Apr	KLM
30 Mar - 09 Apr	LOT
29 Mar - 01 Apr	LOT
29 Mar - 02 Apr	LOT
29 Mar - 08 Apr	LOT

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 $608

Return flights