| X4 | Arriva UK Bus | Windmill Hill ↔ Liverpool | Timetable |
| X4 | Arriva UK Bus | Chester ↔ Mold | Timetable |
| X4 | Arriva UK Bus | Luton Airport ↔ Aylesbury | Timetable |
| X4 | Arriva UK Bus | Chester ↔ Mold | Timetable |
| X4 | David Goodfellow Travel | Doncaster Centre ↔ Auckley | Timetable |
| X4 | E Stott & Sons Ltd | Netherthong ↔ Huddersfield Town Centre | Timetable |
| X4 | East Coast Buses | Tranent ↔ Haymarket | Timetable |
| X4 | First Bus | Bristol ↔ Portishead | Timetable |
| X4 | First Bus | Doncaster Town Centre ↔ Doncaster Sheffield Airport | Timetable |
| X4 | Go-Ahead | Salisbury ↔ Pewsey | Timetable |
| X4 | Harrogate Coach Travel Ltd | Harrogate ↔ Woodlands | Timetable |
| x4 | Hornsby Travel Ltd | Scunthorpe ↔ Brigg | Timetable |
| X4 | Stagecoach | Northampton ↔ Corby | Timetable |
| X4 | Stagecoach | Corby ↔ Peterborough | Timetable |
| X4 | Stagecoach | Oxford City Centre ↔ Banbury Town Centre | Timetable |
| X4 | Stagecoach | Merthyr Tydfil ↔ Cardiff | Timetable |
| X40 | Lothian Country | Edinburgh Royal Infirmary ↔ Howden | Timetable |
| X41 | Transdev | Accrington ↔ Shudehill | Timetable |
| X43 | Arriva UK Bus | Bangor ↔ Talwrn | Timetable |
| X43 | Northstar Constellation Limited (formerly RMC1510 Limited) | Newcastle upon Tyne ↔ Stanley | Timetable |
| X43 | Transdev | Nelson ↔ Shudehill | Timetable |
| X43 | Transport Made Simple | Bury St Edmunds ↔ Colchester City Cent | Timetable |
| X43 | Transport Made Simple | Bury St Edmunds ↔ Colchester City Centre | Timetable |
| X43 | Williams Coaches | Brecon ↔ Abergavenny | Timetable |
| X44 | Sargeants Bros. Coaches Ltd | Hereford ↔ Brecon | Timetable |
| X44 | Sargeants Bros. Coaches Ltd | Hereford ↔ Brecon | Timetable |
| X442 | Carlone Buses | Heathrow Airport Terminal 5 ↔ Staines | Timetable |
| X45 | Arriva UK Bus | Leicester ↔ Magna Park | Timetable |
| X45 | Go-Ahead | Consett ↔ Newcastle upon Tyne | Timetable |
| X45 | Go-Ahead | Market Weighton ↔ York | Timetable |
| X46 | Arriva UK Bus | Stanhope ↔ Framwellgate Moor | Timetable |
| X46 | Go-Ahead | Swindon ↔ Hungerford | Timetable |
| X46 | Go-Ahead | Hull ↔ York | Timetable |
| X46 | Pats Coaches | Wrexham ↔ Whitchurch | Timetable |
| X46 | Pats Coaches | Wrexham (circular) | Timetable |
| X46 | Stagecoach | Northampton ↔ Rushden | Timetable |
| X47 | Celtic Travel | Llandrindod Wells ↔ Llangurig | Timetable |
| X47 | Frome Bus | Frome ↔ Trowbridge | Timetable |
| X47 | Go-Ahead | Hull ↔ York | Timetable |
| X47 | Lothian Buses | East Craigs ↔ Edinburgh | Timetable |
| X47 | Shiel Buses | Upper Achintore ↔ Corpach | Timetable |
| X47 | Stagecoach | Northampton ↔ Raunds | Timetable |
| X48 | Celtic Travel | ↔ Builth Wells | Timetable |
| X49 | Faresaver Buses | Devizes ↔ Trowbridge | Timetable |
| X49 | South Pennine Community | Huddersfield Town Centre ↔ Brighouse | Timetable |