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

Return flights

03 Mar - 10 Mar	WestJet	direct
03 Mar - 15 Mar	WestJet	direct
31 Mar - 14 Apr	WestJet	direct
03 Mar - 06 Apr	Lufthansa
30 Mar - 14 Apr	Delta
29 Mar - 11 Apr	Air Canada
19 Mar - 05 Apr	Air Canada
03 Mar - 06 Apr	WestJet	direct
22 Mar - 28 Mar	Air Canada
30 Mar - 14 Apr	WestJet	direct
29 Mar - 11 Apr	WestJet	direct
20 Mar - 06 Apr	WestJet	direct
27 Mar - 11 Apr	WestJet	direct
22 Mar - 28 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 $614

Return flights