Is there a direct train?

No, you must change trains in London.

How long is the drive?

Approximately 9 hours depending on traffic.

There are no direct commercial flights between Glasgow and Portsmouth.

Where do I change in London?

You typically transfer from London Euston to London Waterloo.

There are no major toll roads on this specific route.

Clydebank

Portsmouth

Train Driving

Clydebank to Portsmouth

Updated: 31 May 2026

Traveling from Clydebank to Portsmouth involves a significant journey across the length of the UK. You will typically start by taking a local train to Glasgow Queen Street or Central. From Glasgow Central, you can board an Avanti West Coast service to London Euston. After transferring across London to Waterloo, you take a South Western Railway service to Portsmouth Harbour. The total travel time is approximately 8 to 9 hours depending on connection efficiency.

Total Distance: Driving distance 715 km, straight-line air distance 600 km.

Fastest Way

Train from Glasgow Central to London Euston, then transfer to Waterloo.

Cheapest Way

Advance train tickets booked via LNER or Trainline.

Compare Clydebank to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	8 hours 30 mins	9 hours
Avg Price	120-250 GBP	90-130 GBP fuel
Operator	Avanti West Coast and South Western Railway	N/A
Route	Glasgow Central to London Euston, then London Waterloo to Portsmouth Harbour.	M74, M6, M42, M40, A34, M3, A3.
Tip	Book your tickets at least 12 weeks in advance to secure Advance fares.	Avoid the M6 near Birmingham during peak morning and evening rush hours.

Travel Tips

Railcard
Purchase a Two Together or Network Railcard to save one-third on fares.
London Transfer
Use the London Underground Victoria Line to get from Euston to Waterloo quickly.
Luggage
Keep your luggage light as you will need to navigate London stations.
Seat Reservation
Always reserve a seat on the long-haul Avanti West Coast leg.
WiFi
Most long-distance trains offer free WiFi, but it can be spotty in rural areas.

Safety Tips

Station Safety
Keep your belongings in sight at all times in busy London terminals.
Road Fatigue
If driving, take a break every two hours at motorway service stations.
Emergency
Dial 999 for emergency services if you encounter a serious issue.
Night Travel
Avoid walking alone in unfamiliar areas late at night; use licensed taxis.