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

Return flights

02 May - 13 May	Icelandair
05 May - 12 May	Icelandair
01 May - 09 May	Icelandair
01 May - 06 May	Icelandair
02 May - 06 May	Icelandair
08 May - 12 May	Icelandair
02 May - 14 May	Icelandair
02 May - 07 May	Icelandair
05 May - 11 May	Icelandair
10 May - 14 May	Icelandair
12 May - 02 Jun	Icelandair
06 May - 03 Jun	Icelandair
21 May - 06 Jun	WestJet
13 May - 01 Jun	Icelandair
27 May - 03 Jun	Ryanair
22 May - 01 Jun	WestJet
28 May - 01 Jun	Ryanair
24 May - 01 Jun	WestJet
28 May - 05 Jun	WestJet
28 May - 04 Jun	WestJet

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

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 May from 403€

Return flights