Cheapest return flights from Calgary to London in May from $621

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

Return flights

19 May - 27 May WestJet
19 May - 26 May WestJet
18 May - 27 May WestJet
17 May - 27 May WestJet
01 May - 08 May Flair Airlines
06 May - 18 May WestJet
12 May - 18 May Air Canada
18 May - 26 May WestJet direct
04 May - 12 May British Airways
04 May - 25 May British Airways
25 May - 06 Jun Air Canada direct
25 May - 05 Jun WestJet
28 May - 04 Jun WestJet
24 May - 04 Jun WestJet direct
28 May - 04 Jun WestJet direct
28 May - 03 Jun WestJet direct
11 May - 02 Jun WestJet
17 May - 15 Jun WestJet
04 May - 09 Jun Air Canada
20 May - 01 Jun Flair Airlines

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

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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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