We booked with Galveston Limo and they did a great job getting us to the pier and back again. You can book a shuttle for 60 per person round trip. You can book your transportation with them online too.
We used the Galveston Limo service. When we returned they were just out side the gate and we were loaded and gone with a full van in 10 minutes or less. The Service was great.
When youi get to the airport they are in the parking garage wating.
Pride of America