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

Return flights

04 Mar - 17 Mar	WestJet	direct
04 Mar - 22 Mar	WestJet
05 Mar - 15 Mar	WestJet
03 Mar - 06 Mar	WestJet
03 Mar - 10 Mar	WestJet
03 Mar - 07 Mar	WestJet
02 Mar - 17 Mar	WestJet
02 Mar - 08 Mar	WestJet	direct
01 Mar - 10 Mar	WestJet	direct
04 Mar - 09 Mar	WestJet	direct
01 Mar - 09 Apr	Delta
17 Mar - 01 Apr	Delta
17 Mar - 23 Apr	Air France
19 Mar - 21 Apr	Air France
18 Mar - 08 Apr	Air France
17 Mar - 07 Apr	Air France
26 Mar - 10 Apr	WestJet	direct
16 Mar - 04 Apr	KLM
10 Mar - 06 Apr	KLM
30 Mar - 03 Apr	Air France

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 405€

Return flights