Buses
- 45Stevenage - Knebworth - Codicote - Kimpton - Batford - Luton
- 307Harpenden - Redbourn
- 307c
- 321Luton - Harpenden - St Albans - Watford
- 357Harpenden - Borehamwood
- 366Luton - Harpenden - Welwyn Garden City - South Hatfield
- 367Oxlease - Hatfield - Harpenden
- 610Hatfield - Harpenden - Luton
- 807Harpenden - Markyate
- HA1Harpenden Local Service
- HH1Derwent Road - West Common Way (Circular)
- ThameslinkBedford - Harpenden
- ThameslinkHarpenden - Hendon
- ThameslinkHarpenden - St Albans City
- ThameslinkHarpenden - West Hampstead Thameslink
- ThameslinkLondon St Pancras International - Harpenden
- ThameslinkLuton - Harpenden
- ThameslinkLuton - St Albans City
- ThameslinkLuton Airport Parkway - Harpenden
- ThameslinkMill Hill Broadway - Harpenden
- ThameslinkMill Hill Broadway - Luton
- ThameslinkPotters Bar - Harpenden
- ThameslinkSt Albans City - Luton Airport Parkway
- ThameslinkWest Hampstead Thameslink - Luton
- X10Hatfield - Luton (Limited Stop)
Rail Services
- ThameslinkBedford - Gatwick Airport
- ThameslinkBedford - Haywards Heath
- ThameslinkBedford - Horsham
- ThameslinkBedford - Rainham (Kent)
- ThameslinkBrighton - Bedford
- ThameslinkBrighton - Harpenden
- ThameslinkEast Grinstead - Bedford
- ThameslinkFarringdon - Bedford
- ThameslinkGillingham (Kent) - Luton
- ThameslinkHarpenden - Brighton
- ThameslinkHarpenden - St Albans City
- ThameslinkHarpenden - Three Bridges
- ThameslinkHaywards Heath - Bedford
- ThameslinkLondon St Pancras International - Bedford
- ThameslinkLondon St Pancras International - Harpenden
- ThameslinkLondon St Pancras International - Luton
- ThameslinkLuton - Brighton
- ThameslinkLuton - Elephant & Castle
- ThameslinkLuton - Farringdon
- ThameslinkLuton - Gatwick Airport
- ThameslinkLuton - Gravesend
- ThameslinkLuton - Herne Hill
- ThameslinkLuton - London Blackfriars
- ThameslinkOrpington - Luton
- ThameslinkRainham (Kent) - Luton
- ThameslinkSutton (London) - Bedford
- ThameslinkSutton (London) - Harpenden
- ThameslinkSutton (London) - Luton
- ThameslinkThree Bridges - Bedford
- ThameslinkThree Bridges - Harpenden
- ThameslinkThree Bridges - Luton