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

Return flights

14 Sep - 17 Sep	Eurowings	direct
21 Sep - 24 Sep	Eurowings	direct
26 Sep - 01 Oct	Ryanair
15 Sep - 18 Sep	Eurowings
18 Sep - 20 Sep	Ryanair
15 Sep - 19 Sep	Eurowings	direct
08 Sep - 10 Sep	Eurowings
08 Sep - 10 Sep	Eurowings	direct
14 Sep - 18 Sep	Eurowings
09 Sep - 12 Sep	Ryanair
16 Sep - 20 Sep	Ryanair
29 Sep - 03 Oct	Eurowings
26 Sep - 01 Oct	Eurowings	direct
30 Sep - 04 Oct	Ryanair
29 Sep - 05 Oct	Eurowings
29 Sep - 03 Oct	Eurowings	direct
29 Sep - 05 Oct	Eurowings	direct

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 $136

Return flights