The average train between Heathrow Terminal 3 and St Pancras takes 33 min and the fastest train takes 28 min. The train runs at least 4 times per hour from Heathrow Terminal 3 to St Pancras. 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 15 minutes between Heathrow Terminal 3 and St Pancras. The earliest departure is at 12:12 AM at night, and the last departure from Heathrow Terminal 3 is at 5:32 PM which arrives into St Pancras at 6:04 PM. All services require a transfer at London Paddington and take an average of 33 min. The schedules shown below are for the next available departures.

4h 48m • 1 change
31 min • 1 change
33 min • 1 change
35 min • 1 changeWant to know about travelling from Heathrow Terminal 3 to St Pancras? 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 3 to St Pancras. However, there are services departing from Heathrow Terminal 3 station and arriving at St Pancras station via London Paddington. The journey, including transfers, takes approximately 33 min.
Heathrow Terminal 3 to St Pancras train services, operated by Elizabeth Line (TfL), depart from Heathrow Terminals 2 & 3 station.
Heathrow Terminal 3 to St Pancras train services, operated by Elizabeth Line (TfL), arrive at Euston Square station.
Book your Heathrow Terminal 3 to St Pancras train tickets online with Elizabeth Line (TfL), London Underground (Tube) and Heathrow Express.
The distance between Heathrow Terminal 3 and St Pancras is 23.4 km. The road distance is 26 km.
Elizabeth Line (TfL) operates a train from Heathrow Terminals 2 & 3 to Tottenham Court Rd every 20 minutes. Tickets cost £13–26 and the journey takes 33 min.