Cheapest return flights from Calgary to London in August from $671

Best time to book flights for Calgary (YYC) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Calgary (YYC) to London (LHR) in August 2025 (see full year).

Return flights

12 Aug - 21 Aug Air Canada
04 Aug - 21 Aug WestJet
19 Aug - 26 Aug Air Canada
19 Aug - 10 Sep Air Canada
20 Aug - 09 Sep WestJet direct
26 Aug - 02 Sep Delta
24 Aug - 04 Sep Delta
30 Aug - 16 Sep Delta
31 Aug - 16 Sep Delta
29 Aug - 19 Sep Delta
02 Aug - 09 Sep WestJet
01 Aug - 07 Aug WestJet
25 Aug - 02 Sep Delta
18 Aug - 25 Aug WestJet
02 Aug - 07 Sep WestJet
19 Aug - 27 Aug Delta
05 Aug - 12 Aug Delta
14 Aug - 28 Aug Delta
12 Aug - 26 Aug Delta
21 Aug - 28 Aug Delta

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

Skyscanner

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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