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

Return flights

18 Apr - 25 Apr	Icelandair
17 Apr - 23 Apr	Icelandair
18 Apr - 26 Apr	Icelandair
17 Apr - 24 Apr	Icelandair
20 Apr - 27 Apr	Icelandair
18 Apr - 23 Apr	Icelandair
29 Apr - 06 May	Icelandair
12 Apr - 20 Apr	Icelandair
14 Apr - 28 Apr	Icelandair
15 Apr - 23 Apr	Icelandair
17 Apr - 21 Apr	Icelandair
20 Apr - 04 May	Icelandair
29 Apr - 12 May	Icelandair
22 Apr - 09 May	Icelandair
21 Apr - 05 May	Icelandair
16 Apr - 01 May	Icelandair
21 Apr - 01 May	Icelandair
28 Apr - 05 May	Icelandair
29 Apr - 13 May	Icelandair
21 Apr - 11 May	British Airways

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

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 April from 491€

Return flights