A return transfer is missed more often than an arrival. If the hotel exit slips, check-in shrinks. That is why the departure is built backwards from the flight. A domestic flight and an international flight do not want the same margin.
The road is about 60 kilometres, 50 to 70 minutes when traffic is light. Add the walk down from the room and a margin at security. If several rooms are collected, write the room count. The driver meets you in the lobby.