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

Return flights

04 May - 11 May	Lufthansa
06 May - 16 May	SWISS
13 May - 22 May	Icelandair
02 May - 05 May	Icelandair
10 May - 25 May	Icelandair
13 May - 23 May	Icelandair
13 May - 21 May	SWISS
14 May - 23 May	Icelandair
12 May - 26 May	Icelandair
05 May - 10 May	Lufthansa
24 May - 01 Jun	Icelandair
26 May - 16 Jun	Vueling Airlines
26 May - 04 Jun	Vueling Airlines
26 May - 08 Jun	Vueling Airlines
25 May - 01 Jun	Icelandair
24 May - 07 Jun	Icelandair
15 May - 04 Jun	British Airways
29 May - 09 Jun	British Airways
26 May - 10 Jun	Vueling Airlines
29 May - 07 Jun	Finnair

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

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.

Book a cheap hotel in Calgary

Cheap car rent in Calgary

Cheapest return flights from London to Calgary in May from 490€

Return flights