The average train between Heathrow Terminal 4 and Horsham takes 2h 11m and the fastest train takes 2h 6m. There is an hourly train service from Heathrow Terminal 4 to Horsham. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Heathrow Terminal 4 and Horsham. The earliest departure is at 5:30 AM in the morning, and the last departure from Heathrow Terminal 4 is at 10:30 PM which arrives into Horsham at 12:40 AM. All services require a transfer at Farringdon Without and take an average of 2h 11m. The schedules shown below are for the next available departures.

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2h 21m • 1 changeWant to know about travelling from Heathrow Terminal 4 to Horsham? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Heathrow Terminal 4 to Horsham. However, there are services departing from Heathrow Terminal 4 station and arriving at Horsham station via Farringdon Without station. The journey, including transfers, takes approximately 2h 11m.
Heathrow Terminal 4 to Horsham train services, operated by Elizabeth Line (TfL), depart from Heathrow Terminal 4 station.
Heathrow Terminal 4 to Horsham train services, operated by Thameslink, arrive at Horsham station.
Book your Heathrow Terminal 4 to Horsham train tickets online with Omio.
The distance between Heathrow Terminal 4 and Horsham is 44.7 km. The road distance is 55 km.
You can take a train from Heathrow Terminal 4 to Horsham via Farringdon Without and Farringdon in around 2h 23m.