Hatfield was the junction for a now closed branch line to Dunstable Town. It was also the junction of a second railway that ran to St Albans Abbey. Both branch lines were closed in the 1960s under the Beeching Axe. The route of the St Albans Abbey line is now a public footpath, the Alban Way, while the closure of the Dunstable Town line has left Dunstable as one of the largest towns in England without a direct rail connection.
Daytimes there is generally a half-hourly fast service to London Kings Cross southbound and service every 20 minutes stopping service to Moorgate Monday to Fridays and half-hourly on weekends to Kings Cross.