AirHint found the following cheapest return flights from London (YXU) to Calgary (YYC) in December 2025 (see full year).

Return flights

25 Dec - 08 Jan	WestJet	direct
24 Dec - 07 Jan	WestJet	direct
24 Dec - 08 Jan	WestJet	direct
23 Dec - 07 Jan	WestJet	direct
26 Dec - 01 Jan	WestJet	direct
23 Dec - 26 Dec	WestJet	direct
23 Dec - 30 Dec	WestJet	direct
22 Dec - 07 Jan	WestJet	direct
07 Dec - 14 Dec	WestJet	direct
18 Dec - 07 Jan	WestJet	direct
17 Dec - 02 Jan	WestJet	direct
17 Dec - 04 Jan	WestJet	direct
24 Dec - 28 Dec	WestJet	direct
15 Dec - 05 Jan	WestJet	direct
23 Dec - 28 Dec	WestJet	direct
23 Dec - 27 Dec	Air Canada

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 159€

Return flights