We paid (I think) about $46 ROUND TRIP, PER PERSON, to go from the hotel to the ship and from the ship to the airport. If you only want one way, it's about half that.
For 5 people you might find other ways to be cost effective and more flexible (e.g., hiring a limo or private car).
We chose to pay the price and let Disney do all the organizing and handle all the details--especially since we had the extra complication of needing to transfer an electric scooter with us both ways. Besides, the trip to the ship included a video introduction, which was a good distraction.
Hopefully, someone else with more experience will volunteer info for the alternative transportation....
Good luck, and enjoy your wonderful vacation!