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

Return flights

15 Apr - 22 Apr	WestJet	direct
06 Apr - 15 Apr	WestJet	direct
13 Apr - 28 Apr	WestJet	direct
01 Apr - 15 Apr	WestJet	direct
20 Apr - 27 Apr	WestJet	direct
06 Apr - 12 Apr	WestJet	direct
01 Apr - 09 Apr	WestJet	direct
15 Apr - 17 Apr	WestJet	direct
04 Apr - 20 Apr	WestJet	direct
19 Apr - 26 Apr	WestJet	direct
25 Apr - 02 May	WestJet	direct
25 Apr - 09 May	WestJet	direct

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 559€

Return flights