Sixt Sixt Extra Airline Staff Discount Book your car with Sixt and receive an extra 5% Airline Employee Discount on top of the already discounted rates! Rent a Car Now! 2 thoughts on “Sixt” Please add me Reply Done! Reply Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Save my name, email, and website in this browser for the next time I comment.