How can I add my frequent traveler program membership?

Frequent Traveler Program

Earn miles or points for your rides and link your traveler memberships to your SIXT account.
You can add your preferred frequent traveler program in the last step of your booking (under BOOKING OPTIONS). Simply select the frequent traveler program and add your membership ID. Please make sure that the name in your SIXT account is identical to the name of the member in the frequent traveler program. Only one frequent traveler program can be added per booking.