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

Return flights

01 Mar - 09 Mar	WestJet	direct
06 Mar - 16 Mar	WestJet	direct
04 Mar - 25 Mar	WestJet	direct
02 Mar - 23 Mar	WestJet	direct
18 Mar - 29 Mar	British Airways
25 Mar - 02 Apr	Air Canada
19 Mar - 30 Mar	Air Canada
29 Mar - 12 Apr	Air Canada
28 Mar - 11 Apr	Air Canada
19 Mar - 28 Mar	British Airways
18 Mar - 29 Mar	WestJet	direct
20 Mar - 29 Mar	Air Canada
20 Mar - 29 Mar	WestJet	direct

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

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 Calgary to London in March from 462€

Return flights