I would like to travel to the airport the day before my flight departure / I would like to travel from the airport the day after my flight arrival. Is that possible?

Yes. If you have booked Rail&Fly, during your check-in, you will be asked to select, respectively, a train connection on the day of your flight departure or the day before, or on the day of your flight arrival or the day after.

The train segments can be checked in for the following time frames:

• Travelling to the airport: the day of your flight's departure and the day before.
• Travelling from the airport: the day of your flight's arrival in Germany and the day after.