How about a sort of cryo sleep travel (like in the movies/books) where you select a far off system (which has to have a population and a facility to accept your ship like a safe area in space).
Then you select the station. see the travel time (could be up to two days for furthest travel). Pay the fee to be docked when arrived. And sleep. You could do this when asleep in real life or away from game.
If you come back before the travel is complete and want to play you stop wherever you are (you wont know exactly where) but you lose the fee and are prohibited from using service again for x number of days.
NOTE: this could not be used to take you into deep space as there are no populated systems with the holding facility there to stop at.
Then you select the station. see the travel time (could be up to two days for furthest travel). Pay the fee to be docked when arrived. And sleep. You could do this when asleep in real life or away from game.
If you come back before the travel is complete and want to play you stop wherever you are (you wont know exactly where) but you lose the fee and are prohibited from using service again for x number of days.
NOTE: this could not be used to take you into deep space as there are no populated systems with the holding facility there to stop at.