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

Return flights

12 May - 20 May	Ryanair
05 May - 19 May	Ryanair
10 May - 19 May	Wizz Air UK
12 May - 09 Jun	Wizz Air UK
13 May - 20 May	Ryanair
07 May - 20 May	Ryanair
12 May - 21 May	easyJet
12 May - 26 May	Wizz Air UK
12 May - 17 May	Wizz Air UK
09 May - 19 May	Vueling Airlines
07 May - 16 May	Ryanair
13 May - 17 Jun	Vueling Airlines
17 May - 05 Jun	Ryanair
18 May - 08 Jun	Icelandair
24 May - 07 Jun	Icelandair
25 May - 03 Jun	Icelandair
28 May - 11 Jun	Ryanair
29 May - 07 Jun	Ryanair
30 May - 13 Jun	Vueling Airlines
25 May - 04 Jun	Icelandair

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.

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Cheapest return flights from London to Calgary in May from 391€

Return flights