Is there a direct train?

No, you must change at Bristol Temple Meads.

How long is the drive?

Approximately 2 hours 15 minutes via the M4 and M3.

Is Portsmouth worth visiting?

Yes, it is a historic city with great access to the coast.

No, there are no tolls on this route.

Summer months offer the best weather for exploring.

Caldicot

Portsmouth

Train Driving

Caldicot to Portsmouth

Updated: 31 May 2026

The journey from Caldicot to Portsmouth covers 180 kilometers, following the M4 and the M3 through the heart of Hampshire. By car, the trip typically takes 2 hours and 15 minutes. Train travel is a popular option, with direct services from Newport or Bristol to Portsmouth Harbour station. Portsmouth is a major port city known for its naval history and vibrant shopping center. This route is perfect for those looking to explore the South Coast.

Total Distance: 180 km driving distance, 160 km straight-line air distance.

Fastest Way

Driving via the M4 and M3 is the fastest route, taking about 2 hours 15 minutes.

Cheapest Way

Driving is the most economical for groups, while the train is efficient for solo travelers.

Compare Caldicot to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	3 hours	2 hours 15 mins
Avg Price	50-90 GBP	35-45 GBP in fuel
Operator	Great Western Railway	N/A
Route	Newport to Portsmouth Harbour.	M4, M3
Tip	Book advance tickets to save significantly on the fare.	The M3 can be busy; plan your arrival outside of peak hours.

Travel Tips

Parking
Use the Gunwharf Quays car park for central access to the city's shopping area.
Train Booking
Use the GWR website to find the best value tickets for your journey.
Traffic
Avoid the M3 during peak holiday periods to prevent significant delays.
Walking
Portsmouth is a large city, but the center is easy to navigate on foot.
Local Events
Check the local council website for market days and town events.

Safety Tips

Road Safety
The M3 is a major motorway; stay alert and keep a safe distance.
Station Safety
Portsmouth Harbour station is a busy hub; keep your belongings close.
Emergency
Dial 999 for any emergency assistance.
Night Travel
Stick to well-lit main roads if driving late at night.