Is there a direct train?

No, you must change at Exeter St Davids.

Portsmouth has many ferry links to France and the Isle of Wight.

Yes, it is a major commuter route for the south coast.

Where to park in Portsmouth?

Gunwharf Quays has extensive parking facilities.

Saint Austell

Portsmouth

Train Driving

Saint Austell to Portsmouth

Updated: 29 May 2026

The journey from St Austell to Portsmouth covers approximately 380 kilometers. By train, you travel via GWR to Exeter St Davids, then transfer to a South Western Railway service to Portsmouth Harbour. Driving involves taking the A30, A303, and M27. Expect a travel time of 5 hours. This route connects the Cornish coast with the historic naval city of Portsmouth.

Total Distance: Driving distance 390 km, straight-line air distance 310 km.

Fastest Way

Driving, taking approximately 4 hours 45 minutes.

Cheapest Way

Advance train tickets booked via the GWR website.

Compare Saint Austell to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	5 hours	4 hours 45 mins
Avg Price	£70 - £140	£60 - £90 in fuel
Operator	GWR and South Western Railway	Personal Vehicle
Route	St Austell to Exeter St Davids, transfer to Portsmouth Harbour.	A30, A303, M3, M27.
Tip	Portsmouth Harbour station is right next to the Historic Dockyard.	The M27 can be very busy during rush hour.

Travel Tips

Exeter Connection
Ensure you have at least 30 minutes for your connection at Exeter St Davids.
A303 Stonehenge
Expect traffic delays near Stonehenge; plan your journey accordingly.
Train App
Download the GWR app for live updates on your journey.
Parking
Portsmouth has several park-and-ride options to avoid city center traffic.
Off-Peak Fares
Travel outside of morning and evening rush hours to save money.