The average bus between Harpenden and Heathrow Terminal 3 takes 2h 15m and the fastest bus takes 1h 33m. There is a bus service every few hours from Harpenden to Heathrow Terminal 3. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Harpenden and Heathrow Terminal 3. The earliest departure is at 5:01 AM in the morning, and the last departure from Harpenden is at 9:51 PM which arrives into Heathrow Terminal 3 at 11:39 PM. All services require a transfer at Luton Airport Parkway and take an average of 2h 15m. The schedules shown below are for the next available departures.

1h 48m • 1 change
2h 29m • 1 change
2h 41m • 1 change
2h 27m • 1 change
1h 48m • 1 change
2h 29m • 1 change
2h 41m • 1 change
2h 27m • 1 change
1h 48m • 1 change
2h 29m • 1 change
2h 41m • 1 change
2h 27m • 1 changeWant to know about travelling from Harpenden to Heathrow Terminal 3? 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 bus from Harpenden to Heathrow Terminal 3. However, there are services departing from Harpenden station and arriving at Heathrow Terminal 3 station via London Heathrow Airport. The journey, including transfers, takes approximately 2h 15m.
Harpenden to Heathrow Terminal 3 bus services, operated by Arriva UK, depart from Luton DART Parkway station.
Harpenden to Heathrow Terminal 3 bus services, operated by Arriva UK, arrive at London Heathrow Airport station.
The distance between Harpenden and Heathrow Terminal 3 is 38.9 km. The road distance is 65 km.
FlixBus operates a bus from Luton DART Parkway to London Heathrow Airport hourly. Tickets cost £3–6 and the journey takes 50 min.