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

Return flights

05 Mar - 10 Mar	SWISS
02 Mar - 09 Mar	SWISS
03 Mar - 11 Mar	SWISS
04 Mar - 09 Mar	Brussels Airlines
04 Mar - 11 Mar	Lufthansa
04 Mar - 09 Mar	WestJet	direct
01 Mar - 10 Mar	Air Canada
01 Mar - 11 Mar	Air Canada
05 Mar - 10 Mar	Air Canada	direct
01 Mar - 08 Mar	Air Canada
25 Mar - 06 Apr	WestJet	direct
31 Mar - 07 Apr	WestJet	direct
31 Mar - 11 Apr	WestJet	direct
21 Mar - 04 Apr	WestJet	direct
19 Mar - 07 Apr	WestJet	direct
27 Mar - 13 Apr	Aer Lingus
30 Mar - 19 Apr	WestJet	direct
22 Mar - 02 Apr	KLM
28 Mar - 11 Apr	Aer Lingus
25 Mar - 08 Apr	WestJet	direct

Also check the deals for one-way flights from London to Calgary 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 London to Calgary in March from 364€

Return flights