I got note of maintenance work on the Cologne - Frankfurt high speed line on the day I have to fly home from Germany after the study abroad program ends. I have to use the line to get to the airport. I have a buffer day after the original day of departure, and booked a hotel room in Frankfurt for my final night.
The maintenance work will extend journey times of most ICE trains along the line by 1h40min. Originally my plan is to catch the ICE train which would arrive at Frankfurt Airport three hours before my flight departs, but with the hotel booking, I will be getting to Frankfurt the day before I fly home instead, reserving that whole day to travel to Frankfurt. I will then spend the last day in Frankfurt, arriving at the airport 3.5 hours before departure.
Is this a wise decision given that DB always delays?