AirHint found the following cheapest return flights from London (LHR) to Calgary (YYC) in December 2026 (see full year).

Return flights

01 Dec - 08 Dec	Virgin Atlantic
01 Dec - 06 Dec	Virgin Atlantic
07 Dec - 13 Dec	Finnair
04 Dec - 11 Dec	Finnair
05 Dec - 12 Dec	Virgin Atlantic
27 Dec - 08 Jan	KLM
15 Dec - 27 Dec	Air France
15 Dec - 29 Dec	Air France
12 Dec - 26 Dec	KLM
16 Dec - 23 Dec	Air France
09 Dec - 18 Dec	KLM
23 Dec - 01 Jan	Virgin Atlantic
30 Dec - 17 Jan	Air Canada
30 Dec - 17 Jan	Air Canada	direct
23 Dec - 04 Jan	KLM
26 Dec - 01 Jan	Virgin Atlantic
23 Dec - 05 Jan	KLM
28 Dec - 05 Jan	Air Canada
24 Dec - 03 Jan	Air France
26 Dec - 02 Jan	KLM

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

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 Calgary in December from 619€

Return flights