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

Return flights

08 Oct - 29 Oct	Ryanair
22 Oct - 13 Nov	Ryanair
01 Oct - 22 Oct	Ryanair
01 Oct - 19 Nov	Lufthansa
20 Oct - 31 Oct	Ryanair
10 Oct - 26 Oct	AJet
01 Oct - 14 Oct	Eurowings
28 Oct - 18 Nov	Lufthansa
29 Oct - 15 Nov	Pegasus Airlines
17 Oct - 08 Nov	Ryanair
23 Oct - 02 Nov	Ryanair
02 Oct - 15 Oct	Eurowings
04 Oct - 17 Oct	Ryanair
03 Oct - 16 Oct	AJet
17 Oct - 25 Oct	Ryanair
03 Oct - 18 Oct	AJet
25 Oct - 13 Nov	Lufthansa
23 Oct - 01 Nov	Eurowings
24 Oct - 14 Nov	Austrian Airlines
31 Oct - 30 Nov	Austrian Airlines

Also check the deals for one-way flights from Cologne to Bangkok 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 Cologne to Bangkok in October from 534€

Return flights