Cheapest return flights from Toronto to London in December from $517

Best time to book flights for Toronto (YYZ) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Toronto (YYZ) to London (LHR) in December 2025 (see full year).

Return flights

02 Dec - 13 Dec TAP
01 Dec - 09 Dec TAP
01 Dec - 12 Dec Icelandair
02 Dec - 09 Dec Icelandair
09 Dec - 12 Jan Aer Lingus
01 Dec - 09 Dec British Airways direct
02 Dec - 09 Dec British Airways direct
01 Dec - 08 Dec Finnair direct
02 Dec - 13 Dec Delta direct
09 Dec - 11 Jan TAP
07 Dec - 11 Jan TAP
09 Dec - 31 Dec British Airways direct
09 Dec - 16 Dec British Airways
27 Dec - 31 Jan Air Canada
27 Dec - 31 Jan British Airways direct
26 Dec - 10 Jan Icelandair
18 Dec - 11 Jan Icelandair
26 Dec - 10 Jan British Airways direct
17 Dec - 08 Jan Icelandair
18 Dec - 08 Jan Icelandair

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

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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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