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

Return flights

30 Sep - 07 Oct	Eurowings
17 Sep - 24 Sep	Ryanair
23 Sep - 07 Oct	Ryanair
16 Sep - 17 Sep	Ryanair
17 Sep - 30 Sep	Ryanair
17 Sep - 22 Sep	Ryanair
10 Sep - 23 Sep	Ryanair
11 Sep - 17 Sep	Ryanair
15 Sep - 17 Sep	Ryanair
29 Sep - 09 Oct	Ryanair
28 Sep - 08 Oct	Ryanair
10 Sep - 13 Sep	Ryanair
22 Sep - 27 Sep	Ryanair
22 Sep - 26 Sep	Ryanair
29 Sep - 03 Oct	Ryanair
29 Sep - 04 Oct	Ryanair
27 Sep - 04 Oct	Ryanair
28 Sep - 08 Oct	Eurowings	direct
21 Sep - 05 Oct	Eurowings
28 Sep - 05 Oct	Eurowings

Also check the deals for one-way flights from Cologne to Budapest 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 Cologne to Budapest in September from $111

Return flights