Park & Fly Köln offers a good shuttle service to and from the airport. You can park your car at the parking of Park & Fly and they will bring you to the airport with their free shuttle service. The shuttle service is free up to 3 persons. If you travel with more than 3 persons, you can drop them off at the airport first before you go to the parking or pay €10 extra per person to go with the shuttle bus.
The car park is outdoor and is located only 7 km from Köln-Bonn Airport. The shuttle will take you to the airport in less than 10 minutes. There is 24/7 security at the parking, full CCTV and fencing.
On the day of departure, you drive straight to the parking lot. Please report on the provider's desk and you will be transferred by shared shuttle bus to your final destination. Upon return, you contact the carrier by telephone, after which you will be transferred back to the parking lot.