AirHint found the following cheapest return flights from Cologne (CGN) to Lisbon (LIS) in January 2026 (see full year).

Return flights

10 Jan - 27 Jan	Ryanair	direct
10 Jan - 28 Jan	Ryanair	direct
10 Jan - 17 Jan	Ryanair	direct
06 Jan - 17 Jan	Ryanair	direct
07 Jan - 27 Jan	Ryanair	direct
07 Jan - 17 Jan	Ryanair	direct
13 Jan - 27 Jan	Ryanair	direct
13 Jan - 28 Jan	Ryanair	direct
13 Jan - 17 Jan	Ryanair	direct
14 Jan - 27 Jan	Ryanair	direct
13 Jan - 02 Feb	Ryanair	direct
14 Jan - 02 Feb	Ryanair	direct
25 Jan - 01 Feb	Eurowings	direct
30 Jan - 02 Feb	Eurowings	direct
30 Jan - 04 Feb	Eurowings

Also check the deals for one-way flights from Cologne to Lisbon in January.

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 Cologne to Lisbon in January from $117

Return flights