Hi, and welcome to the forums.
Neither is right.
How long did the trip take? The trip is over. How many days (weeks, months, years) was it?
How long has the trip been taking? The trip is in progress right now. It is not over. It seems like it's taking longer than you thought it would. How many days (weeks, months, years) has it been since you started? (This is not a very likely sentence.)
How long will the trip take? The trip is either in progress or planned. What will be the total time it takes to complete it?
How much longer will the trip take? The trip is in progress right now. How many more days until it is completed?
PS - Please give your posts more expressive titles, like "have taken" instead of just "Question." Thanks.
Student or Learner