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

Return flights

01 May - 06 May	Icelandair
01 May - 17 May	Icelandair
05 May - 10 May	Vueling Airlines
01 May - 08 May	Icelandair
05 May - 20 May	Vueling Airlines
05 May - 11 May	Vueling Airlines
05 May - 18 May	Vueling Airlines
06 May - 20 May	Icelandair
06 May - 16 May	Icelandair
20 May - 29 May	Icelandair
27 May - 01 Jun	Icelandair
20 May - 03 Jun	Icelandair
20 May - 07 Jun	Icelandair
27 May - 07 Jun	Icelandair
24 May - 05 Jun	KLM
24 May - 07 Jun	KLM
18 May - 05 Jun	British Airways
31 May - 08 Jun	British Airways
27 May - 05 Jun	Icelandair
27 May - 09 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.

Book a cheap hotel in Calgary

Cheap car rent in Calgary

Cheapest return flights from London to Calgary in May from 509€

Return flights