Cheapest return flights from Calgary to London in December from 374€

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

Return flights

07 Dec - 17 Jan WestJet direct
07 Dec - 14 Jan WestJet direct
02 Dec - 11 Dec Air Canada
01 Dec - 09 Dec Air Canada
03 Dec - 07 Dec Air Canada
06 Dec - 16 Jan WestJet direct
02 Dec - 04 Dec WestJet direct
03 Dec - 11 Dec WestJet direct
04 Dec - 08 Dec WestJet direct
03 Dec - 15 Dec WestJet direct
03 Dec - 08 Dec WestJet direct
07 Dec - 14 Dec Air Canada direct
09 Dec - 13 Jan WestJet direct
01 Dec - 15 Jan WestJet direct
03 Dec - 09 Dec WestJet direct
14 Dec - 28 Jan Air Canada
11 Dec - 12 Jan Air Canada
26 Dec - 09 Jan Air Canada
26 Dec - 10 Jan Air Canada
31 Dec - 24 Jan Air Canada

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

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