The average bus between Sea Mills and Portishead takes 1h 5m and the fastest bus takes 53 min. The bus runs at least 2 times per hour from Sea Mills to Portishead. 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 every 30 minutes between Sea Mills and Portishead. The earliest departure is at 5:36 AM in the morning, and the last departure from Sea Mills is at 11:33 PM which arrives into Portishead at 12:42 AM. All services require a transfer, and take on average 1h 5m. The schedules shown below are for the next available departures.

1h 10m • 1 change

1h 10m • 1 change
Arrives next day

1h 9m • 1 change

1h 21m • 1 change

1h 9m • 1 change

1h 2m • 1 change

59 min • 1 change
Want to know about travelling from Sea Mills to Portishead? 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 Sea Mills to Portishead. However, there are services departing from Sea Mills station and arriving at Portishead station via Gasworks Lane. The journey, including transfers, takes approximately 1h 5m.
Sea Mills to Portishead bus services, operated by First Bristol, Bath & the West, depart from Riverleaze station.
Sea Mills to Portishead bus services, operated by First Bristol, Bath & the West, arrive at Combe Road station.
The distance between Sea Mills and Portishead is 8.5 km. The road distance is 23 km.
You can take a bus from Riverleaze to Combe Road via Gasworks Lane in around 55 min.