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

Return flights

31 Aug - 08 Sep	KLM
24 Aug - 06 Sep	KLM
24 Aug - 07 Sep	KLM
23 Aug - 06 Sep	KLM
20 Aug - 03 Sep	KLM
31 Aug - 03 Sep	Finnair
28 Aug - 04 Sep	Finnair
31 Aug - 19 Sep	Finnair
29 Aug - 04 Sep	Finnair
28 Aug - 03 Sep	Finnair
25 Aug - 31 Aug	Scandinavian Airlines
24 Aug - 31 Aug	Scandinavian Airlines
12 Aug - 25 Aug	Aer Lingus
01 Aug - 14 Aug	Aer Lingus
04 Aug - 19 Aug	Aer Lingus
21 Aug - 31 Aug	Scandinavian Airlines
13 Aug - 27 Aug	Aer Lingus
21 Aug - 30 Aug	Scandinavian Airlines
05 Aug - 12 Aug	Aer Lingus
01 Aug - 13 Aug	Aer Lingus

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 629€

Return flights