The average train between Heathrow Terminal 4 and Welwyn Garden City (Station) takes 1h 39m and the fastest train takes 1h 24m. The train runs at least 2 times per hour from Heathrow Terminal 4 to Welwyn Garden City (Station). 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 every 30 minutes between Heathrow Terminal 4 and Welwyn Garden City (Station). The earliest departure is at 5:27 AM in the morning, and the last departure from Heathrow Terminal 4 is at 11:35 PM which arrives into Welwyn Garden City (Station) at 1:35 AM. All services require a transfer at King's Cross St. Pancras station and take an average of 1h 39m. The schedules shown below are for the next available departures.

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Want to know about travelling from Heathrow Terminal 4 to Welwyn Garden City (Station)? 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 Welwyn Garden City (Station). However, there are services departing from Heathrow Terminal 4 station and arriving at Welwyn Garden City (Station) station via King's Cross St. Pancras station station. The journey, including transfers, takes approximately 1h 39m.
Heathrow Terminal 4 to Welwyn Garden City (Station) train services, operated by London Underground (Tube), depart from Heathrow Terminal 4 station.
Heathrow Terminal 4 to Welwyn Garden City (Station) train services, operated by London Underground (Tube), arrive at Welwyn Garden City station.
Book your Heathrow Terminal 4 to Welwyn Garden City (Station) train tickets online with London Underground (Tube) and Great Northern.
The distance between Heathrow Terminal 4 and Welwyn Garden City (Station) is 41.6 km. The road distance is 65 km.
You can take a train from Heathrow Terminal 4 to Welwyn Garden City via Liverpool Street Station and Moorgate in around 1h 50m.