Cheapest return flights from Cologne to Bangkok in September from $695

Best time to book flights for Cologne (CGN) to Bangkok (BKK) flights at AirHint

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

Return flights

15 Sep - 08 Oct Lufthansa
15 Sep - 07 Oct Lufthansa
16 Sep - 05 Oct Lufthansa
08 Sep - 11 Oct Lufthansa
08 Sep - 24 Sep Lufthansa
16 Sep - 29 Sep Lufthansa
15 Sep - 21 Sep Austrian Airlines
16 Sep - 03 Oct Lufthansa
04 Sep - 18 Sep Lufthansa
15 Sep - 04 Oct Lufthansa
05 Sep - 27 Sep Ryanair
06 Sep - 19 Sep Turkish Airlines
13 Sep - 23 Sep Turkish Airlines
07 Sep - 18 Sep Turkish Airlines
08 Sep - 21 Sep Lufthansa
13 Sep - 04 Oct Turkish Airlines
02 Sep - 19 Sep Ryanair
26 Sep - 11 Oct SWISS
29 Sep - 20 Oct Austrian Airlines

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

Skyscanner

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok