AirHint found the following cheapest return flights from Calgary (YYC) to Lisbon (LIS) in October 2025 (see full year).

Return flights

29 Oct - 25 Nov	WestJet
07 Oct - 20 Oct	WestJet
21 Oct - 04 Nov	WestJet
28 Oct - 04 Nov	WestJet
20 Oct - 24 Nov	WestJet
29 Oct - 17 Nov	Air Transat
30 Oct - 22 Nov	WestJet
22 Oct - 18 Nov	Air Canada
29 Oct - 06 Nov	WestJet
29 Oct - 05 Nov	WestJet
21 Oct - 15 Nov	WestJet
24 Oct - 31 Oct	Air Canada
21 Oct - 28 Oct	WestJet
07 Oct - 15 Oct	WestJet
13 Oct - 20 Oct	WestJet
19 Oct - 28 Oct	WestJet
01 Oct - 08 Oct	WestJet
06 Oct - 19 Oct	Air Canada
20 Oct - 25 Oct	WestJet
17 Oct - 26 Oct	WestJet

Also check the deals for one-way flights from Calgary to Lisbon in October.

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 Calgary to Lisbon in October from 449€

Return flights