<p>According to Realtime Trains the route and timings were;
Luton [LUT]............................0820...........................0819 3/4.....................RT
Luton Airport Parkway .......0822/0822 1/2.........0822/0822 1/2.........RT
Harpenden [HPD]................0827 1/2/0828.........0827 1/4/0827 3/4..RT
Harpenden Junction...........0828 1/2....................0828 1/2.....................RT
St Albans [SAC]....................0833/0834................0832 1/2/0833 1/2...RT
R. Redland Roadstone........0837...........................0836 1/2.....................RT
Radlett [RDT].........................0838 1/2/0839.........0838 1/4/0838 3/4..RT
Radlett Junction...................0840...........................0839 1/2.....................RT
Elstree&amp;Borehamwood .....0842 1/2/0843 1/2...0842/0842 1/2.........RT
Mill Hill Broadway ...............0846 1/2....................0845 1/2.....................RT
Silkstream Junction.............0847 1/2.....................0846 3/4....................RT
Hendon [HEN]......................0848 1/2....................0848...........................RT
CricklewoodDepNthCon...0849...........................0848 1/4.....................RT
Brent Curve Junction..........0849 1/2....................0848 1/2.....................RT
Cricklewood Depot Ju.......0849 1/2....................0848 3/4....................RT
Cricklewood Curve Jn........0850...........................0849...........................RT
Cricklewood [CRI]................0850...........................0849 1/2.....................RT
Cricklewood South Jn........0850...........................0849 1/4.....................RT
W. Hampstead Nth Jn........0851............................0850 1/2....................RT
W. H'stead Thameslink ......0851 1/2/0852 1/2...0851/0851 3/4..........RT
West Hampstead Sth Jn....0853 1/2....................0852 1/2.....................RT
Carlton Road Junction.......0855...........................0854 1/4.....................RT
Kentish Town Junction.......0855 1/2....................0854............................1E
Kentish Town [KTN]............0856...........................0855 1/4.....................RT
Dock JunctionNorth............0858 1/2....................0856 1/2......................1E
St Pancras International.....0901/0902 1/2.........0859/0902...............RT
Farringdon [ZFD]..................0906/0907...............0905 1/2/0907 1/2...RT
City Thameslink [CTK]........0908 1/2/0909 1/2..0909/0909 3/4........RT
London Blackfriars .............0911/0912..................0911/0914 3/4...........2L
Blackfriars Junction............0913............................0915 3/4.....................2L
Southwark Bridge Jn..........0914............................0916 1/4......................2L
Elephant &amp; Castle ...............0915/0916.................0917 3/4/0918...........2L
Loughborough Junction....0919 1/2.....................0921.............................1L
Cambria Junction................0920 1/2....................0922............................1L
Denmark Hill [DMK].............0921 1/2/0922 1/2...0923/0923 1/2..........1L
Crofton Road Junction.......0923 1/2....................0925............................1L
Peckham Rye [PMR]............0924 1/2/0925.........0925/0926................1L
Nunhead [NHD]....................0927/0927 1/2.........0928/0929 3/4........2L
Nunhead Junction...............0928 1/2....................0930 1/2.....................2L
Crofton Park [CFT]...............0930/0930 1/2.........0932 1/2/0933.........2L
Catford [CTF]........................0932 1/2/0933.........0934 3/4/0935 1/4..2L
Bellingham [BGM]................0935/0935 1/2.........0937/0937 1/2..........2L
Beckenham Hill [BEC]........0937/0937 1/2.........0939/0939 1/2.........2L
Ravensbourne [RVB]...........0939/0939 1/2.........0941 1/2/0941 3/4....2L
Shortlands Junction............0941............................0942 3/4.....................1L
Shortlands [SRT]..................0942/0942 1/2.........0943 1/2/0943 3/4...1L
Bromley South [BMS]..........0944 1/2/0945 1/2...0945 3/4/0946 1/4..RT
Bickley [BKL].........................0947 1/2/0948.........0948 3/4/0949.........1L
Bickley Junction[XLY].........0949...........................0950 1/2.....................1L
St Mary Cray Junction........0950..........................0950 3/4....................RT
St Mary Cray [SMY]..............0952/0952 1/2.........0953/0953 1/2..........1L
Swanley [SAY]......................0956/0957...............0957 1/4/0958..........1L
Eynsford [EYN].....................1001/1001 1/2.............1002/1002 1/2............1L
Shoreham [SEH]...................1004 1/2/1005...........1005 3/4/1006 1/2.....1L
Otford [OTF]..........................1007 1/2/1008...........1009/1009 3/4...........1L
Otford Junction[XOT].........1009............................1011..............................2L
Bat &amp; Ball [BBL].....................1010 1/2/1011..............1012 3/4/1013 1/2......2L
</p>
Sevenoaks [SEV]..................1014.............................1016 1/4.......................2L
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/99279135@N05/26719415727/">700056 Luton to Sevenoaks 2E21</a>