Have done this journey last year and doing it again this time. Flying from Glasgow to Bristol on Tuesday (arriving quite late) and staying at the Hilton at the airport a 5 minute walk from the airport and breakfast in the morning, we have booked the national express coach from the airport which actually departs from just outside the hotel. Departs at 9am (last year it was a bit late) arrived onsite about 1040. The coach was ideal as the managed to get quite close to gate A we only queued for about an hour to get in.