Cheapest return flights from Calgary to Lisbon in September from $648

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

Return flights

08 Sep - 15 Sep Air Transat
20 Sep - 29 Sep Air Transat
17 Sep - 24 Sep WestJet
08 Sep - 04 Oct WestJet
16 Sep - 18 Sep WestJet
29 Sep - 25 Oct British Airways
11 Sep - 04 Oct WestJet
11 Sep - 21 Sep Flair Airlines
05 Sep - 27 Sep WestJet
05 Sep - 12 Sep WestJet
30 Sep - 25 Oct WestJet
15 Sep - 11 Oct WestJet
15 Sep - 13 Oct WestJet

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

Skyscanner

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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