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

Return flights

18 Jun - 02 Jul	Delta
07 Jun - 14 Jun	Virgin Atlantic
22 Jun - 02 Jul	Delta
08 Jun - 14 Jun	Virgin Atlantic
18 Jun - 30 Jun	KLM
23 Jun - 02 Jul	KLM
23 Jun - 05 Jul	KLM
22 Jun - 30 Jun	Delta
08 Jun - 29 Jun	Virgin Atlantic
01 Jun - 16 Jun	Delta
01 Jun - 10 Jun	Delta
01 Jun - 08 Jun	Delta
15 Jun - 21 Jun	Delta
01 Jun - 17 Jun	Delta
30 Jun - 01 Jul	LOT
25 Jun - 05 Jul	KLM
24 Jun - 01 Jul	KLM
15 Jun - 29 Jul	British Airways
25 Jun - 09 Jul	KLM
12 Jun - 06 Jul	Delta

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

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 June from $708

Return flights