I will be coming to MAD from next Saturday till Sunday. Unfortunately I will be leaving MAD already very early in the morning (at 6:50 am) on Sunday and just found out on the not so informative MAD website that the metro isn't going before 6 am. So, my question about the route 89 bus. Is it also going on Sundays from 4:45 am and when will I get to the airport if I take the first bus? Thanks for your help. It is surely appreciated.