Airport Köln Bonn
The Aiport Köln Bonn is the base airport for three cheap inner european airlines:
Germanwings offers cheap flights (starting at 19 eur one-way) to Cologne from more than 20 cities from all over Europe. Among those is Helsinki, Oslo, Stockholm, Budapest, Istanbul, Athens, Lisbon, Madrid, Roma and several others.
Hapag Lloyd Express
HLX offers flight directly to Cologne/Bonn as well. Check them out expecially if you're planning to come from Italy and Spain, as they fly from many of these coutries' cities.
If you are coming from England (Gatwick, East Midlands or Liverpool) Easyjet might be interesting for you.
European Air Express
This company offers flights from three Polish cities directly to Cologne, as well as from Geneva and London.
If you arrive at Aiport Köln Bonn you should take the S13 or RE8 towards Köln. When you reached Köln Deutz, continue your trip to the Evoke location as outlined here. The whole trip costs 2 Eur ("City Tarif"/"Preisstufe 1b").
Airport Frankfurt / Hahn
The Frankfurt Hahn Airport is the german base of Ryanair. They offer flights from most European capitals.
From Hahn you should take the bus to Cologne. The bus takes little more than 2 hours and costs 15 . The bus stops behind Cologne main station. Continue your trip to the evoke location as outlined here.
For other airports (Frankfurt, Düsseldorf, Düsseldorf/Niederrhein e.g.) you will have to take the train to Cologne. Please, get in touch with us if you have got some questions.