Cheapest return flights from Calgary to London in December from $465

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

Return flights

05 Dec - 10 Dec WestJet
08 Dec - 15 Jan WestJet direct
27 Dec - 30 Jan WestJet direct
29 Dec - 24 Jan WestJet direct
30 Dec - 18 Jan WestJet direct
05 Dec - 11 Dec WestJet direct
02 Dec - 10 Dec WestJet direct
05 Dec - 10 Dec WestJet direct
05 Dec - 09 Dec WestJet direct
02 Dec - 09 Dec WestJet direct
08 Dec - 15 Dec WestJet direct
03 Dec - 09 Dec WestJet direct
01 Dec - 05 Dec WestJet direct
29 Dec - 17 Jan WestJet direct
07 Dec - 14 Jan WestJet direct
09 Dec - 14 Jan WestJet direct
08 Dec - 10 Dec WestJet direct
03 Dec - 12 Jan Air Canada
07 Dec - 12 Jan WestJet
27 Dec - 13 Jan WestJet

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

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