I'm sure there's been threads on this in the past, but for an up-to-date one, what are the shortest distances between stations which passengers can take and longest journeys without changing possible on each TOC? I am counting infrequent services (e.g. Carlisle – Nottingham) but not ones which only exist due to engineering works. So far I've got (all distances in km; I'll add in miles as well):
| TOC | Shortest | Longest |
| TfW Rail | Ty Glas – Birchgrove (0.3) | Manchester Piccadilly – Pembroke Dock (517 km / 321 miles) |
| Blackpool Trams | Gynn Square – Cliffs Hotel (0.25) | Fleetwood – Starr Gate (18) |
| c2c | Westcliff – Southend Central (1.4) | Fenchurch Street – Shoeburyness via Ockendon (78) |
| Chiltern | Birmingham Moor Street – Snow Hill (0.7) | Marylebone – Stourbridge Junction (201) |
| Caledonian Sleeper | Roy Bridge – Spean Bridge as the shortest a passenger could take (5.3) | Euston – Inverness (946) |
| London Trams | Phipps Bridge – Belgrave Walk (0.4) | Wimbledon – New Addington (20) |
| DLR | West India Quay – Canary Wharf (0.2) | Bank – Woolwich Arsenal (14) |
| EMR | Manchester Piccadilly – Oxford Road (0.9) | Norwich – Liverpool (409) |
| Eurostar (former blue-and-yellow only) | Lille-Europe – Bruxelles-Midi / Brussel-Zuid (107) | St. Pancras – Amsterdam CS (586) |
| Edinburgh Trams | The Shore – Port of Leith (0.4) | Newhaven – Airport (18) |
| Grand Central | Low Moor – Bradford Interchange (4.8) | King's Cross – Sunderland (428) |
| Great Northern | Moorgate – Old Street (0.8) | King's Cross – King's Lynn (160) |
| LNER | Edinburgh Waverley – Haymarket (2) | King's Cross – Inverness (933) |
| Glasgow Subway | Bridge Street – West Street or Kinning Park – Cessnock (both officially 0.495) | Any (clockwise, marginally) circular journey (10) |
| GWR | Devonport – Dockyard / Drayton Green – Castle Bar Park (0.6) | 17:50 Penzance – Paddington via Bristol (522) |
| Hull Trains | Hull – Cottingham (6.3) | Beverley – King's Cross (343) |
| Lumo | Newcastle – Morpeth (27) | King's Cross – Edinburgh (632) |
| Greater Anglia | Southend Victoria – Prittlewell (1) | Liverpool Street – Norwich (185) |
| West Midlands Trains | Birmingham Moor Street – Snow Hill (0.7) | Euston – Crewe (254) |
| London Overground | Rotherhithe – Canada Water (0.3) | Clapham Junction – Stratford (29) |
| London Underground | Covent Garden – Leicester Square (0.3) | West Ruislip – Epping (55) |
| Merseyrail | James Street – Moorfields (0.5) | Chester – Chester (56) |
| Manchester Metrolink | Market Street – Piccadilly Gardens (0.3) | Rochdale – East Didsbury (37) |
| Northern | Manchester Oxford Road – Deansgate (0.6) | 15:19 Sundays Carlisle – Nottingham (313) |
| Southeastern | Bromley North – Sundridge Park (0.7) | St. Pancras – Ramsgate via Dover (159) |
| Sheffield Supertram | Fitzalan Square / Ponds Forge – Castle Square (0.1) | Malin Bridge – Halfway (19) |
| Southern | Newhaven Town – Newhaven Harbour (0.6) | Victoria – Southampton (166) |
| ScotRail | Duke Street – Alexandra Parade (0.5) | 14:39 Glasgow Queen Street – Inverness via Aberdeen (422) |
| South Western | Twickenham – St. Margarets (0.6) | Waterloo – Exeter St. Davids (276) |
| Thameslink | Blackfriars – City Thameslink (0.5) | Peterborough – Horsham (189) |
| TransPennine Express | Manchester Piccadilly – Oxford Road (0.9) | Manchester Airport – Glasgow Central (376) |
| Tyne and Wear Metro | Monument – Haymarket (0.4) | St. James – South Shields (51) |
| Avanti | Edinburgh Waverley – Haymarket (2) | 18:52 Edinburgh – Euston via Birmingham and Northampton (660) |
| Midland Metro | Five Ways – Brindley Place (0.3) | Wolverhampton Station – Edgbaston Village (23) |
| CrossCountry | Edinburgh Waverley – Haymarket (2) | Aberdeen – Penzance (1243) |
| Crossrail / Elizabeth Line | Stratford – Maryland (0.8) | Abbey Wood – Reading (81) |
| Nottingham Express Transit | Chilwell Road – High Road - Central College (0.3) | Toton Lane – Hucknall (22.3) |
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