Changing Your Booking: Late Pick-Up, Extending, Returning Late and Cancelling

Plans change – flights get delayed and trips get longer. Here is how to change your SIXT booking, what it costs and who to contact.

Running late for pick-up?

Flight delayed? Add your flight number to your booking in the SIXT app or by emailing cs@sixt.is, so we can follow your arrival.
Our rental desk in the Keflavík Airport terminal is open 06:00–02:00. See SIXT locations and opening hours.
Will you be much later than booked? Contact us at cs@sixt.is or +354 540 2222 as early as possible.
The rental is charged for the full booked period, so picking the car up late does not reduce the price.

Email us at cs@sixt.is with your rental agreement number before your booked return time, and we will update your rental agreement free of charge. The extra days are charged at your rate.
If you return the car late without telling us, a service fee of EUR 12.40 is charged in addition to the extra rental days.
Returning the car to a different SIXT station than agreed, without telling us in advance, costs a service fee of EUR 19.84.

You are welcome to return the car early, but the rental is charged for the full booked period – there is no refund for unused days.

Within 24 hours of booking: changes are free of charge, as long as pick-up is more than 48 hours away.
Prepaid bookings (Pay now): can be changed up to 48 hours before pick-up, subject to availability, for a modification fee of EUR 20. A change may affect the rate. Money already paid is not refunded, even if the new booking costs less, and a prepaid booking cannot be changed to a Pay later rate.
To change a booking, contact us at cs@sixt.is with your booking number.

You can cancel online or by email to cs@sixt.is before the rental begins.
Free cancellation: within 24 hours of booking, as long as pick-up is more than 48 hours away.
Prepaid bookings: after that, the prepayment is refunded minus a cancellation charge equal to the rental charge (including extras) for up to 3 rental days.
No-show: if the car is not collected, the rental charge already paid is kept in full.