I have a cautionary tale about the Hoppa to T5 from the Holiday Inn Aerial on Bath Road. Before a 7am departure, I caught a bus 90 minutes prior to departure and made it to security with 8 minutes to spare before conformance would have ruined my day.

What I did not realize was that after picking me up, the bus visited several other hotels and then went to T4 before getting to T5 50 minutes later.

Local buses are a much better option.