The average train between Kings Cross and Heathrow Terminals 4 takes 40 min and the fastest train takes 35 min. The train runs at least 3 times per hour from Kings Cross to Heathrow Terminals 4. 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 20 minutes between Kings Cross and Heathrow Terminals 4. The earliest departure is at 6:52 AM in the morning, and the last departure from Kings Cross is at 7:06 PM which arrives into Heathrow Terminals 4 at 7:46 PM. All services require a transfer at Paddington and take an average of 40 min. The schedules shown below are for the next available departures.

39 min • 1 change

39 min • 1 change

37 min • 1 change

37 min • 1 change
Want to know about travelling from Kings Cross to Heathrow Terminals 4? 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 Kings Cross to Heathrow Terminals 4. However, there are services departing from Kings Cross station and arriving at Heathrow Terminals 4 station via Paddington. The journey, including transfers, takes approximately 40 min.
Kings Cross to Heathrow Terminals 4 train services, operated by London Underground (Tube), depart from King's Cross St. Pancras station.
Kings Cross to Heathrow Terminals 4 train services, operated by London Underground (Tube), arrive at Heathrow Terminal 5 station.
Book your Kings Cross to Heathrow Terminals 4 train tickets online with London Underground (Tube) and Heathrow Express.
The distance between Kings Cross and Heathrow Terminals 4 is 25.3 km. The road distance is 31 km.
London Underground (Tube) operates a subway from King's Cross St. Pancras station to Heathrow Terminal 5 station every 10 minutes. Tickets cost £16–65 and the journey takes 1h 2m.