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

Return flights

31 Jul - 05 Aug	Turkish Airlines
28 Jul - 27 Aug	Turkish Airlines
28 Jul - 04 Aug	Turkish Airlines
31 Jul - 07 Aug	Turkish Airlines
29 Jul - 15 Aug	Turkish Airlines
30 Jul - 13 Aug	Turkish Airlines
28 Jul - 31 Jul	Turkish Airlines
28 Jul - 13 Aug	Turkish Airlines
31 Jul - 09 Aug	Turkish Airlines
31 Jul - 21 Aug	Turkish Airlines
31 Jul - 28 Aug	Turkish Airlines

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

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 July from 859€

Return flights