1841
Queens Park (London)
Bus service
London Underground service
1842
London Road Depot
Departed on time
London Underground service
2
1845
Watford Junction
Departed at 1850
London Overground service
1
1847
London Euston
Departed on time
London Overground service
2
1850
London Euston
Departed on time
West Midlands Trains service
6
1851
Milton Keynes Central
Departed on time
West Midlands Trains service
5
1851
Queens Park (London)
Bus service
London Underground service
1853
Elephant & Castle (Lt)
Departed at 1854
London Underground service
2
1858
Watford Junction
Departed at 1901
London Overground service
1
1859
East Croydon
Departed at 1900
Southern service
6
1900
Elephant & Castle (Lt)
Departed at 1903
London Underground service
2
1901
Queens Park (London)
Bus service
London Underground service
1904
London Euston
Departed at 1906
London Overground service
2
1906
Tring
Departed at 1907
West Midlands Trains service
5
1908
London Euston
Departed at 1913
West Midlands Trains service
6
1911
Elephant & Castle (Lt)
Departed at 1915
London Underground service
2
1912
Queens Park (London)
Bus service
London Underground service
1915
Watford Junction
Departed on time
Southern service
5
1915
Watford Junction
Departed at 1918
London Overground service
1
1917
London Euston
Departed at 1919
London Overground service
2
1921
Milton Keynes Central
Departed at 1924
West Midlands Trains service
5
1923
Elephant & Castle (Lt)
Departed at 1924
London Underground service
2
1923
London Euston
Departed at 1928
West Midlands Trains service
6
1924
Queens Park (London)
Bus service
London Underground service
1931
Watford Junction
Departed on time
London Overground service
1
1932
London Euston
Departed on time
London Overground service
2
1934
Queens Park (London)
Bus service
London Underground service
1936
Tring
Departed at 1939
West Midlands Trains service
5
1938
Elephant & Castle (Lt)
Cancelled (delay caused on non-Network Rail line)
London Underground service
1938
London Euston
Departed at 1949
West Midlands Trains service
6
1944
Queens Park (London)
Bus service
London Underground service
1945
Watford Junction
Departed at 1952
London Overground service
1
1947
London Euston
Departed on time
London Overground service
2
1951
Milton Keynes Central
Departed at 1952
West Midlands Trains service
5
1953
Elephant & Castle (Lt)
Departed on time
London Underground service
2
1953
London Euston
Departed at 1956
West Midlands Trains service
6
1954
Queens Park (London)
Bus service
London Underground service
1959
East Croydon
Departed at 2000
Southern service
6
2000
Watford Junction
Departed at 2007
London Overground service
1
2002
London Euston
Departed on time
London Overground service
2
2004
Queens Park (London)
Bus service
London Underground service
2006
Tring
Departed at 2007
West Midlands Trains service
5
2008
Elephant & Castle (Lt)
Departed at 2009
London Underground service
2
2008
London Euston
Departed at 2009
West Midlands Trains service
6
2012
Watford Junction
Departed at 2015
Southern service
5
2014
Queens Park (London)
Bus service
London Underground service
2015
Watford Junction
Departed at 2020
London Overground service
1
2017
London Euston
Departed on time
London Overground service
2
2023
Berkhamsted
Departed at 2024
West Midlands Trains service
5
2023
London Euston
Departed at 2027
West Midlands Trains service
6
2024
Queens Park (London)
Bus service
London Underground service
2024
Elephant & Castle (Lt)
Departed at 2025
London Underground service
2
2030
Watford Junction
Departed at 2033
London Overground service
1
2032
London Euston
Departed on time
London Overground service
2
2034
Queens Park (London)
Bus service
London Underground service
2038
Bletchley
Departed on time
West Midlands Trains service
5
2038
Elephant & Castle (Lt)
Departed on time
London Underground service
2
2038
London Euston
Departed on time
West Midlands Trains service
6