The average bus between Heathrow and Porton Down takes 5h 29m and the fastest bus takes 2h 55m. The bus service runs several times per day from Heathrow to Porton Down. 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 3 times a day between Heathrow and Porton Down. The earliest departure is at 9:30 AM in the morning, and the last departure from Heathrow is at 11:50 PM which arrives into Porton Down at 8:43 AM. All services require a transfer at Meeting House Lane and take an average of 5h 29m. The schedules shown below are for the next available departures.


3h 11m • 2 changes

4h 2m • 2 changesArrives next day


10h 13m • 2 changes

4h 33m • 2 changes

3h 11m • 2 changes

4h 2m • 2 changesArrives next day


10h 13m • 2 changes

4h 33m • 2 changes

3h 11m • 2 changes

4h 2m • 2 changesArrives next day


10h 13m • 2 changes

4h 33m • 2 changes

3h 11m • 2 changes

4h 2m • 2 changesArrives next day


10h 13m • 2 changesWant to know about travelling from Heathrow to Porton Down? 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 Heathrow to Porton Down. However, there are services departing from Heathrow station and arriving at Porton Down station via Meeting House Lane. The journey, including transfers, takes approximately 5h 29m.
Heathrow to Porton Down bus services, operated by National Express, depart from Heathrow Central Bus Station.
Heathrow to Porton Down bus services, operated by National Express, arrive at New Canal station.
The distance between Heathrow and Porton Down is 94.8 km. The road distance is 170 km.
You can take a bus from Heathrow Central Bus Station to Firs Road Top via Meeting House Lane, New Canal, and Endless Street in around 3h 57m.