Depending on the airline booked, flights can be rebooked by phone in the TUIfly.com Service Center during regular business hours or a flight can be transferred to another passenger in the applicable flight plan period (change of name).
You can also access your booking on TUIfly.com and rebook the flight date online.
Please note that the options for rebooking a flight or changing a name and the applicable fees can differ depending on the airline booked.
The applicable rules can be found in the TUIfly.com General Terms and Conditions of Carriage (ABB).
Special situation for flights booked with Lufthansa:
The flight you booked with Lufthansa was rebooked to Germanwings and now you would like to rebook this Germanwings flight.
These Germanwings flights can only be rebooked through the Lufthansa service center by telephone at +49 (0)69 - 86 799 799. When rebooking, please have the Lufthansa booking number ready that you received with your original booking confirmation.