Flexible travellers looking for some budget solution to classic holiday destination in South East Asia may consider current promotional sale of low-cost airlines Eurowings. (Part of Lufthansa family). Based on their service you can book direct flights from Cologne to Thailand (Phuket) are now available for €275. To travel for such a low fare you would have to accept to depart already on 4th of January..Checked luggage up to 23kg as well as other taxes and fees are included in base fare..
If interested in this solution with Europwings you may find the lowest fares in January 2017. Please refer to below booking samples below. (Return flights to Phuket and Bangkok or there is even solution to book open jaw flights).
To check your connection possibilities to Germany we recommend to use Skyscanner. This tool gives you quickly an idea which low-cost airlines are available from your home city. To book some affordable accommodation in Thailand we recommend service of Booking.com.
Booking sample of cheap direct flights from Cologne to Thailand (Phuket) €275! In this case you would fly from Germany to Phuket on 4 of January. Your return flight from this exotic holiday destiantion back to Europe would be then on 10th of January 2017.