113 years of SIXT. 113 years of tradition.

Can SIXT change a booking I made through a third party?

Change or modify a booking

No – SIXT cannot change a rental booked through a travel agency, intermediary or tour operator, as your contract is with that provider. Please contact them first. At the branch, SIXT can help with upgrades, extras and additional drivers.

Why third-party bookings are different

The third-party provider creates your booking under their own terms and prices. SIXT receives the reservation but not the original payment, which is why we can't change the contract directly.

What SIXT can do for you at the branch

  • Add an additional driver on site

  • Add extras (e.g. child seat, sat-nav, prepaid fuel, protection package upgrade) where your booked rate allows

  • Upgrade to a higher vehicle category at the branch

  • Extend your rental during the rental period

Next step

Contact your intermediary first. If your travel date is close, message us – we'll check what's possible on the day.

Still need help? Find our contact options below – please have your booking number ready.

Still need help?
Contact our support team.