AirHint found the following cheapest return flights from Alicante (ALC) to Cologne (CGN) in September 2025 (see full year).

Return flights

24 Sep - 29 Sep	Ryanair	direct
09 Sep - 14 Sep	Ryanair
17 Sep - 22 Sep	Vueling Airlines
10 Sep - 14 Sep	Ryanair
11 Sep - 18 Sep	Vueling Airlines
16 Sep - 20 Sep	Ryanair
24 Sep - 04 Oct	Ryanair	direct
24 Sep - 05 Oct	Ryanair	direct
03 Sep - 04 Sep	Ryanair	direct
24 Sep - 27 Sep	Ryanair	direct
03 Sep - 20 Sep	Ryanair	direct
03 Sep - 07 Sep	Ryanair
24 Sep - 09 Oct	Ryanair	direct
18 Sep - 04 Oct	Ryanair	direct
18 Sep - 05 Oct	Ryanair	direct
29 Sep - 04 Oct	Ryanair	direct
29 Sep - 05 Oct	Ryanair	direct
27 Sep - 04 Oct	Ryanair	direct
27 Sep - 05 Oct	Ryanair	direct
25 Sep - 04 Oct	Ryanair	direct

Also check the deals for one-way flights from Alicante to Cologne in September.

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 Alicante to Cologne in September from $166

Return flights