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

Return flights

06 Jul - 13 Jul	Finnair
22 Jul - 04 Aug	Iberia
21 Jul - 16 Aug	Finnair
06 Jul - 16 Jul	Iberia
28 Jul - 13 Aug	British Airways
16 Jul - 23 Jul	Finnair
08 Jul - 28 Aug	WestJet	direct
06 Jul - 19 Aug	Alaska Airlines
31 Jul - 14 Aug	British Airways
26 Jul - 09 Aug	Iberia
04 Jul - 21 Jul	Air Canada
02 Jul - 18 Jul	WestJet
21 Jul - 16 Aug	WestJet	direct
17 Jul - 07 Aug	Air Canada
06 Jul - 13 Jul	WestJet	direct
15 Jul - 03 Aug	Air Canada
13 Jul - 28 Jul	Air Canada
16 Jul - 23 Jul	WestJet	direct
01 Jul - 13 Jul	Iberia
14 Jul - 23 Jul	Air Canada

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

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 July from 763€

Return flights