Cheapest return flights from London to Toronto in May from $621

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

Return flights

01 May - 09 May Delta
01 May - 10 May KLM
05 May - 10 May KLM
15 May - 19 May SWISS
05 May - 26 May KLM
01 May - 06 May KLM
12 May - 25 May KLM
12 May - 26 May KLM
12 May - 27 May KLM
12 May - 02 Jun KLM
11 May - 17 May Delta
27 May - 03 Jun Delta
28 May - 04 Jun KLM
28 May - 11 Jun LOT
30 May - 14 Jun KLM
22 May - 07 Jun Delta
20 May - 03 Jun British Airways
23 May - 06 Jun KLM
22 May - 06 Jun Delta
18 May - 03 Jun Delta

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

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