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

Return flights

23 Apr - 29 Apr	KLM
08 Apr - 16 Apr	Delta
14 Apr - 23 Apr	Delta
16 Apr - 19 Apr	Delta
21 Apr - 27 Apr	KLM
23 Apr - 28 Apr	Delta
13 Apr - 23 Apr	Virgin Atlantic
09 Apr - 17 Apr	Delta
15 Apr - 18 Apr	Virgin Atlantic
20 Apr - 26 Apr	ITA Airways
22 Apr - 18 May	Delta
29 Apr - 21 May	Delta
28 Apr - 31 May	KLM
29 Apr - 15 May	Delta
22 Apr - 16 May	Delta
29 Apr - 16 May	Delta
24 Apr - 01 May	KLM
27 Apr - 04 May	Delta
26 Apr - 03 May	ITA Airways
17 Apr - 02 May	Luxair

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 $763

Return flights