Or it would not have any time dialation effects at all and you would just happen to get someplace else at the same time you left which is an interesting theory
Imagine that "Ladies and gentlemen we are leaving at 12:01pm September 24 and proceeding 50 light years the trip will take x amount of time)
Say a week later "Ladies and gentlemen welcome to destination B 50 light years away, the time is 12:01 september 24th thank you for flying paradox air."
Possible