The station is served by the Heathrow Express 'shuttle' service providing a train every 15 minutes between Terminal 4 and Heathrow Central. Some early morning, late evening and most Sunday services are operated by Heathrow Connect. Heathrow Express operate the station and tickets are sold for both Heathrow Express and Heathrow Connect services. Heathrow Express customers must first catch either a Heathrow Connect or shuttle service to Heathrow Central for access to Heathrow Express. Heathrow Connect services serve several other stations in west London and terminate at Paddington.