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

Return flights

10 Aug - 23 Aug	Lufthansa
05 Aug - 15 Aug	Lufthansa
20 Aug - 24 Aug	KLM
02 Aug - 15 Aug	Lufthansa
04 Aug - 15 Aug	Lufthansa
12 Aug - 19 Aug	British Airways
09 Aug - 19 Aug	KLM
06 Aug - 18 Aug	British Airways
06 Aug - 15 Aug	British Airways
11 Aug - 26 Aug	Lufthansa

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

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 August from 776€

Return flights