From 04:53 on 26 Aug 2026
Scheduled departures
U3Heathrow AirportMetroline TravelPlanned08:59Observed— U3Heathrow AirportMetroline TravelPlanned09:11Observed— U3Heathrow AirportMetroline TravelPlanned09:23Observed— 81HounslowMetroline TravelPlanned14:31Observed— 81HounslowMetroline TravelPlanned14:43Observed— 81HounslowMetroline TravelPlanned14:55Observed— 81HounslowMetroline TravelPlanned15:07Observed— 81HounslowMetroline TravelPlanned15:19Observed— U3Heathrow AirportMetroline TravelPlanned15:20Observed— 81HounslowMetroline TravelPlanned15:31Observed— U3Heathrow AirportMetroline TravelPlanned15:32Observed— 81HounslowMetroline TravelPlanned15:43Observed— U3Heathrow AirportMetroline TravelPlanned15:44Observed— 81HounslowMetroline TravelPlanned15:55Observed— U3Heathrow AirportMetroline TravelPlanned15:56Observed— 81HounslowMetroline TravelPlanned16:07Observed— U3Heathrow AirportMetroline TravelPlanned16:08Observed— 81HounslowMetroline TravelPlanned16:18Observed— U3Heathrow AirportMetroline TravelPlanned16:20Observed— 81HounslowMetroline TravelPlanned16:30Observed— U3Heathrow AirportMetroline TravelPlanned16:32Observed— 81HounslowMetroline TravelPlanned16:42Observed— U3Heathrow AirportMetroline TravelPlanned16:44Observed— 81HounslowMetroline TravelPlanned16:54Observed— U3Heathrow AirportMetroline TravelPlanned16:56Observed— 81HounslowMetroline TravelPlanned17:07Observed— U3Heathrow AirportMetroline TravelPlanned17:08Observed— 81HounslowMetroline TravelPlanned17:19Observed— U3Heathrow AirportMetroline TravelPlanned17:20Observed— 81HounslowMetroline TravelPlanned17:31Observed— U3Heathrow AirportMetroline TravelPlanned17:32Observed— 81HounslowMetroline TravelPlanned17:43Observed— U3Heathrow AirportMetroline TravelPlanned17:44Observed— 81HounslowMetroline TravelPlanned17:55Observed— U3Heathrow AirportMetroline TravelPlanned17:56Observed— 81HounslowMetroline TravelPlanned18:07Observed— U3Heathrow AirportMetroline TravelPlanned18:08Observed— U3Heathrow AirportMetroline TravelPlanned18:19Observed— 81HounslowMetroline TravelPlanned18:19Observed— U3Heathrow AirportMetroline TravelPlanned18:30Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned21:22Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned21:51Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned22:21Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned22:51Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned23:23Observed— A4Heathrow AirportFirst Berkshire & The Thames ValleyPlanned23:51Observed— Scheduled and observed values are kept separate. BustimeFinder does not invent realtime departures when stop-specific observations are absent.