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

Return flights

01 Jul - 25 Jul	British Airways
04 Jul - 25 Jul	British Airways
20 Jul - 10 Aug	Iberia
18 Jul - 08 Aug	Iberia
31 Jul - 15 Aug	Iberia
10 Jul - 01 Aug	Iberia
23 Jul - 14 Aug	British Airways
01 Jul - 25 Jul	WestJet	direct
18 Jul - 25 Jul	Lufthansa
04 Jul - 25 Jul	WestJet	direct
18 Jul - 25 Jul	WestJet	direct
20 Jul - 10 Aug	WestJet	direct
23 Jul - 14 Aug	WestJet	direct
31 Jul - 15 Aug	WestJet	direct
01 Jul - 06 Jul	WestJet	direct
18 Jul - 08 Aug	WestJet	direct
10 Jul - 01 Aug	WestJet	direct
20 Jul - 26 Jul	WestJet

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 $851

Return flights