Operators → Thameslink → 12th September 2026
Late worst first, more than 5 mins late (10 for long distance)
| Departs | Headcode | From | To | Late by | Why |
|---|---|---|---|---|---|
| 2046 | 9V70 | Sutton (Surrey) | St Albans City | +39 | Signalling fault |
| 1952 | 9O71 | St Albans City | Sutton (Surrey) | +37 | Signalling fault |
| 2222 | 9O81 | St Albans City | Sutton (Surrey) | +37 | Signalling fault |
| 2207 | 9V81 | St Albans City | Sutton (Surrey) | +28 | Signalling fault |
| 1907 | 9V69 | St Albans City | Sutton (Surrey) | +27 | Signalling fault |
| 2019 | 9O68 | Sutton (Surrey) | St Albans City | +25 | Signalling fault |
| 1644 | 9S46 | Brighton | Cambridge | +23 | Track inspection |
| 2123 | 9J69 | Peterborough | Horsham | +23 | Train ahead late |
| 2244 | 9W17 | Bedford | Brighton | +23 | Urgent repairs to the track |
| 1355 | 9J42 | Horsham | Peterborough | +21 | Track inspection |
| 1314 | 9S32 | Brighton | Cambridge | +19 | Train crew being delayed |
| 1046 | 9T27 | Bedford | Brighton | +17 | Track inspection |
| 1414 | 9S36 | Brighton | Cambridge | +17 | Speed restriction |
| 0240 | 9W08 | Three Bridges | Bedford | +16 | Points failure |
| 0617 | 1P06 | London King's Cross | Peterborough | +15 | Train crew being delayed |
| 1251 | 9S33 | Cambridge | Brighton | +15 | Track inspection |
| 1956 | 9R62 | Three Bridges | Luton | +15 | Signalling fault |
| 1021 | 9S23 | Cambridge | Brighton | +14 | Track inspection |
| 2053 | 9J67 | Peterborough | Horsham | +14 | Fault with barriers at a level crossing |
| 2155 | 9J71 | Peterborough | Horsham | +14 | Problem currently under investigation |
| 1214 | 9S28 | Brighton | Cambridge | +13 | Track inspection |
| 1258 | 9T30 | Brighton | Bedford | +13 | Signalling fault |
| 1544 | 9S42 | Brighton | Cambridge | +13 | Track inspection |
| 1930 | 9P60 | Rainham (Kent) | Kentish Town | +13 | Problem currently under investigation |
| 1114 | 9S24 | Brighton | Cambridge | +12 | Speed restriction |
| 1221 | 9S31 | Cambridge | Brighton | +12 | Track inspection |
| 2156 | 9P67 | Kentish Town | Gillingham (Kent) | +12 | Problem currently under investigation |
| 0816 | 9T17 | Bedford | Brighton | +11 | Speed restriction |
| 1016 | 9T25 | Bedford | Brighton | +11 | Track inspection |
| 2014 | 9S60 | Brighton | Cambridge | +11 | Signalling fault |
| 2254 | 9V85 | Luton | Sutton (Surrey) | +10 | Signalling fault |
| 1747 | 9P53 | Luton | Rainham (Kent) | +9 | Problem currently under investigation |
| 0947 | 9P21 | Luton | Rainham (Kent) | +8 | Problem currently under investigation |
| 1847 | 9P57 | Luton | Rainham (Kent) | +8 | Problem currently under investigation |
| 2226 | 9P69 | Kentish Town | Gillingham (Kent) | +8 | Safety inspection on a train |
| 0549 | 9O10 | Sutton (Surrey) | St Albans City | +7 | Problem currently under investigation |
| 1047 | 9P25 | Luton | Rainham (Kent) | +7 | Freight ahead late |
| 0819 | 9O20 | Sutton (Surrey) | St Albans City | +6 | Speed restriction |
| 2230 | 9A92 | Rainham (Kent) | Dartford | +6 | Problem currently under investigation |
Cancelled reported by TRUST
| Departs | Headcode | From | To | Booked arrival | Why |
|---|---|---|---|---|---|
| 0114 | 9W05 | Bedford | Three Bridges | 0336 | Points failure (including no fault found) |
| 0419 | 9J01 | Peterborough | Horsham | 0712 | Driver |
| 0525 | 9J08 | Horsham | Peterborough | 0808 | Train-crew rostering problem |
| 0530 | 9P04 | Rainham (Kent) | Luton | 0802 | Brake and brake system faults including wheel flats |
| 0602 | 9R01 | Bedford | Three Bridges | 0810 | Driver |
| 0616 | 9Y05 | London Blackfriars | Sevenoaks | 0725 | Fatalities or injuries caused by being hit by train |
| 0725 | 9J16 | Horsham | Peterborough | 1008 | Points failure (including no fault found) |
| 0752 | 9Y10 | Sevenoaks | London Blackfriars | 0859 | Fatalities or injuries caused by being hit by train |
| 0756 | 9R14 | Three Bridges | Bedford | 1009 | Depot operating problem |
| 0823 | 9J17 | Peterborough | Horsham | 1110 | Driver |
| 0826 | 9R16 | Three Bridges | Bedford | 1039 | Broken/cracked/twisted/buckled/flawed rail |
| 0917 | 9P19 | Luton | Rainham (Kent) | 1145 | Other technical failures below the solebar |
| 0922 | 9O29 | St Albans City | Sutton (Surrey) | 1047 | Train-crew rostering problem |
| 1023 | 9J25 | Peterborough | Horsham | 1310 | Driver |
| 1049 | 9O30 | Sutton (Surrey) | St Albans City | 1222 | Train-crew rostering problem |
| 1102 | 9R21 | Bedford | Three Bridges | 1310 | Train-crew rostering problem |
| 1200 | 9P30 | Rainham (Kent) | Luton | 1432 | Other technical failures below the solebar |
| 1225 | 9J36 | Horsham | Peterborough | 1508 | Train-crew rostering problem |
| 1237 | 9V43 | St Albans City | Sutton (Surrey) | 1414 | Train-crew rostering problem |
| 1246 | 9T35 | Bedford | Brighton | 1513 | Driver |
| 1325 | 9J40 | Horsham | Peterborough | 1608 | Train-crew rostering problem |
| 1326 | 9R36 | Three Bridges | Bedford | 1539 | Train-crew rostering problem |
| 1356 | 9R38 | Three Bridges | Bedford | 1609 | Train-crew rostering problem |
| 1416 | 9V44 | Sutton (Surrey) | St Albans City | 1537 | Train-crew rostering problem |
| 1432 | 9R35 | Bedford | Three Bridges | 1640 | Train Operating Company Directive |
| 1447 | 9P41 | Luton | Rainham (Kent) | 1715 | Other technical failures below the solebar |
| 1451 | 9S41 | Cambridge | Brighton | 1718 | Train-crew rostering problem |
| 1523 | 9J45 | Peterborough | Horsham | 1810 | Train-crew rostering problem |
| 1528 | 9T40 | Brighton | Bedford | 1754 | Train-crew rostering problem |
| 1552 | 9O55 | St Albans City | Sutton (Surrey) | 1717 | Train-crew rostering problem |
| 1621 | 9S47 | Cambridge | Brighton | 1848 | Late arrival of booked inward stock |
| 1623 | 9J49 | Peterborough | Horsham | 1910 | Train cancelled or delayed at Train Operator's request |
| 1632 | 9R43 | Bedford | Three Bridges | 1840 | Driver |
| 1656 | 9R50 | Three Bridges | Bedford | 1909 | Train-crew rostering problem |
| 1707 | 9V61 | St Albans City | Sutton (Surrey) | 1844 | Train-crew rostering problem |
| 1730 | 9P82 | Rainham (Kent) | West Hampstead Thameslink | 1921 | Depot operating problem |
| 1737 | 9V63 | St Albans City | Sutton (Surrey) | 1914 | Door and Door system faults |
| 1744 | 9S50 | Brighton | Cambridge | 2009 | Train-crew rostering problem |
| 1856 | 9R58 | Three Bridges | Luton | 2041 | Driver |
| 1922 | 9O69 | St Albans City | Sutton (Surrey) | 2047 | Track circuit failure (including no fault found) |
| 1925 | 9J64 | Horsham | Peterborough | 2206 | Train-crew rostering problem |
| 1937 | 9V71 | St Albans City | Sutton (Surrey) | 2114 | Track circuit failure (including no fault found) |
| 1949 | 9O66 | Sutton (Surrey) | St Albans City | 2122 | Axle Counter Failure |
| 2007 | 9V73 | St Albans City | Sutton (Surrey) | 2144 | Signal failure (including no fault found) |
| 2022 | 9O73 | St Albans City | Sutton (Surrey) | 2147 | Signal failure (including no fault found) |
| 2037 | 9V75 | St Albans City | Sutton (Surrey) | 2214 | Signal failure (including no fault found) |
| 2049 | 9O70 | Sutton (Surrey) | St Albans City | 2222 | Axle Counter Failure |
| 2052 | 9O75 | St Albans City | Sutton (Surrey) | 2217 | Signal failure (including no fault found) |
| 2059 | 9R59 | Luton | Gatwick Airport | 2235 | Driver |
| 2126 | 9P65 | Kentish Town | Rainham (Kent) | 2315 | Lost path - following another later running train |
| 2137 | 9V79 | St Albans City | Sutton (Surrey) | 2314 | Axle Counter Failure |
| 2237 | 9V83 | St Albans City | Sutton (Surrey) | 0014 | Axle Counter Failure |
Showing all 52. Show the worst 50
Part cancelled ran for only part of the journey
| Departs | Headcode | From | To | Arrived |
|---|---|---|---|---|
| 0528 | 9R04 | Three Bridges | Bedford | 0740 |
| 0737 | 9V23 | St Albans City | Sutton (Surrey) | 0915 |
| 0817 | 9P15 | Luton | Rainham (Kent) | 1045 |
| 0846 | 9T19 | Bedford | Brighton | 1124 |
| 0847 | 9P17 | Luton | Rainham (Kent) | 1119 |
| 0932 | 9R15 | Bedford | Three Bridges | 1143 |
| 0944 | 9S18 | Brighton | Cambridge | 1216 |
| 1002 | 9R17 | Bedford | Three Bridges | 1209 |
| 1028 | 9T20 | Brighton | Bedford | 1306 |
| 1032 | 9R19 | Bedford | Three Bridges | 1249 |
| 1117 | 9P27 | Luton | Rainham (Kent) | 1347 |
| 1125 | 9J32 | Horsham | Peterborough | 1410 |
| 1132 | 9R23 | Bedford | Three Bridges | 1349 |
| 1146 | 9T31 | Bedford | Brighton | 1419 |
| 1155 | 9J34 | Horsham | Peterborough | 1446 |
| 1202 | 9R25 | Bedford | Three Bridges | 1421 |
| 1232 | 9R27 | Bedford | Three Bridges | 1451 |
| 1328 | 9T32 | Brighton | Bedford | 1555 |
| 1344 | 9S34 | Brighton | Cambridge | 1646 |
| 1546 | 9T47 | Bedford | Brighton | 1822 |
| 1551 | 9S45 | Cambridge | Brighton | 1829 |
| 1602 | 9R41 | Bedford | Three Bridges | 1810 |
| 1614 | 9S44 | Brighton | Cambridge | 1902 |
| 1651 | 9S49 | Cambridge | Brighton | 1921 |
| 1719 | 9O56 | Sutton (Surrey) | St Albans City | 1852 |
| 1802 | 9R49 | Bedford | Three Bridges | 2011 |
| 1846 | 9V62 | Sutton (Surrey) | St Albans City | 2012 |
| 1916 | 9V64 | Sutton (Surrey) | St Albans City | 2037 |
| 2016 | 9T65 | Bedford | Brighton | 2255 |
| 2016 | 9V68 | Sutton (Surrey) | St Albans City | 2226 |
| 2116 | 9V72 | Sutton (Surrey) | St Albans City | 2258 |
| 2119 | 9O90 | Sutton (Surrey) | Bedford | 0003 |
| 2148 | 9V90 | Sutton (Surrey) | Bedford | 2353 |
| 2149 | 9O92 | Sutton (Surrey) | Bedford | 0008 |
| 2152 | 9O79 | St Albans City | Sutton (Surrey) | 2345 |
| 2318 | 9V96 | Sutton (Surrey) | Bedford | 0117 |
| 2330 | 9A96 | Rainham (Kent) | Dartford | 0017 |