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

Return flights

15 Oct - 27 Oct	Ryanair	direct
15 Oct - 28 Oct	Ryanair	direct
15 Oct - 29 Oct	Ryanair	direct
15 Oct - 22 Oct	Ryanair	direct
22 Oct - 27 Oct	Ryanair
13 Oct - 21 Oct	Vueling Airlines
29 Oct - 03 Nov	Ryanair
22 Oct - 29 Oct	Ryanair
27 Oct - 11 Nov	Vueling Airlines
13 Oct - 23 Oct	Vueling Airlines
15 Oct - 19 Oct	Ryanair
06 Oct - 29 Oct	Ryanair
29 Oct - 05 Nov	Ryanair
27 Oct - 11 Nov	Ryanair	direct
31 Oct - 03 Nov	Ryanair
31 Oct - 09 Nov	Ryanair
31 Oct - 02 Nov	easyJet
29 Oct - 03 Nov	Ryanair	direct
31 Oct - 09 Nov	Eurowings	direct
29 Oct - 05 Nov	Eurowings	direct

Also check the deals for one-way flights from Lisbon to Cologne 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 Lisbon to Cologne in October from $96

Return flights