Cheapest return flights from London to Toronto in May from $455

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

Return flights

08 May - 17 May Air Canada
15 May - 17 May Air Canada
15 May - 22 May Air Canada
10 May - 24 May Air Canada
11 May - 21 May Air Canada
01 May - 22 May Air Canada
01 May - 06 May Air Canada
01 May - 05 May Air Canada
01 May - 08 May Air Canada
01 May - 07 May Air Canada
28 May - 01 Jun Air Canada
28 May - 03 Jun Lufthansa
27 May - 03 Jun Lufthansa
26 May - 09 Jun Lufthansa
30 May - 08 Jun Lufthansa
24 May - 07 Jun Lufthansa direct
25 May - 09 Jun Lufthansa direct
27 May - 03 Jun Air Transat direct
28 May - 03 Jun Air Transat direct
28 May - 01 Jun Air Transat direct

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

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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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