What about the validity of Rail&Fly online tickets?
Rail&Fly online tickets are only valid in conjunction with a Germanwings online reservation for a flight to another European country and only to travel to and from the airports in Cologne, Dortmund, Hanover, Stuttgart and Berlin. Rail&Fly tickets are not valid for domestic German routes, or for flights to Zurich, Salzburg or Vienna. You can only book train tickets for routes paid in euros.
Depending on the type of your Rail&Fly online ticket (single or return), you can use it on the day of the flight as well as 1 day after and 1 day before departure. The outward and return flights must fall within a 6-month period. Outbound and return journeys must be direct to the destination airport/home station.
