1826
St Albans
Bus service
Thameslink service
1827
Welwyn Garden City
Departed at 1828
Great Northern service
4
1828
Harpenden
Bus service
Thameslink service
1830
London Kings Cross
Departed on time
Great Northern service
1
1834
Welwyn Garden City
Departed on time
Thameslink service
4
1837
Moorgate
Departed on time
Great Northern service
1
1839
Welwyn Garden City
Departed on time
Great Northern service
4
1841
St Albans
Bus service
Thameslink service
1843
Sevenoaks
Cancelled (planning error)
Thameslink service
1843
Harpenden
Bus service
Thameslink service
1846
Cambridge
Departed on time
Great Northern service
4
1849
Moorgate
Departed on time
Great Northern service
1
1856
St Albans
Bus service
Thameslink service
1857
Welwyn Garden City
Departed on time
Great Northern service
4
1858
Harpenden
Bus service
Thameslink service
1900
London Kings Cross
Departed at 1901
Great Northern service
1
1904
Welwyn Garden City
Departed on time
Thameslink service
4
1909
Welwyn Garden City
Departed on time
Great Northern service
4
1911
St Albans
Bus service
Thameslink service
1913
Harpenden
Bus service
Thameslink service
1914
Moorgate
Departed on time
Great Northern service
1
1916
Letchworth
Departed on time
Great Northern service
4
1926
St Albans
Bus service
Thameslink service
1927
Welwyn Garden City
Departed on time
Great Northern service
4
1928
Harpenden
Bus service
Thameslink service
1930
London Kings Cross
Departed at 1931
Great Northern service
1
1934
Welwyn Garden City
Departed on time
Thameslink service
4
1941
St Albans
Bus service
Thameslink service
1943
Harpenden
Bus service
Thameslink service
1944
Moorgate
Departed on time
Great Northern service
1
1946
Cambridge
Departed at 1948
Great Northern service
4
1956
St Albans
Bus service
Thameslink service
1957
Welwyn Garden City
Departed on time
Great Northern service
4
1958
Harpenden
Bus service
Thameslink service
2000
London Kings Cross
Departed at 2002
Great Northern service
1
2011
Welwyn Garden City
Departed on time
Great Northern service
4
2013
Harpenden
Bus service
Thameslink service
2016
Letchworth
Departed on time
Great Northern service
4