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

Return flights

07 Oct - 16 Oct	WestJet
06 Oct - 16 Oct	WestJet
14 Oct - 23 Oct	WestJet
14 Oct - 29 Oct	WestJet
07 Oct - 09 Oct	WestJet
03 Oct - 15 Oct	WestJet
14 Oct - 17 Oct	WestJet
10 Oct - 16 Oct	WestJet
09 Oct - 19 Oct	WestJet
02 Oct - 20 Oct	WestJet
30 Oct - 09 Nov	WestJet

Also check the deals for one-way flights from Waterloo 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 Waterloo to Lisbon in October from $1007

Return flights