Train
Driving
Llanelli to Portsmouth
Updated: 31 May 2026
The journey from Llanelli to Portsmouth covers approximately 260 km. By train, you will typically change at London. Driving takes you via the M4, M25, and A3. Portsmouth is a historic naval city known for its dockyard and the Spinnaker Tower.
Total Distance: 260 km driving, 210 km air distance.
Fastest Way
Driving, taking 3 hours 45 minutes via the A3.
Cheapest Way
Advance train tickets booked via the Trainline.
Compare Llanelli to Portsmouth Routes
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Connecting
|
Direct
|
|
|---|---|---|
| Duration | 4 hours | 3 hours 45 mins |
| Avg Price | 50-110 GBP | 45-75 GBP fuel |
| Operator | Transport for Wales / South Western Railway | Personal Vehicle |
| Route | Llanelli to London Paddington to Portsmouth. | A48, M4, M25, A3. |
| Tip | Book in advance for the best prices on the London leg. | The M25 can be very busy; plan for potential delays. |
Travel Tips
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Portsmouth StationThe station is well-connected to the city center.
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WalkingThe city center is compact and pedestrian-friendly.
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BookingUse the Trainline app for real-time updates.
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ParkingUse the Gunwharf Quays car park for central access.
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Local TransportPortsmouth has a good bus network.
Safety Tips
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Night SafetyStay in well-lit areas after dark.
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Personal ItemsKeep your belongings secure in busy areas.
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Road SafetyBe careful on the M25 during peak hours.
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EmergencyCall 999 for any emergency.
People Also Ask
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Is there a direct train?No, you must change at least once.
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How long is the drive?Usually 3 hours 45 minutes.
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Is Portsmouth safe?Yes, it is generally safe for tourists.
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Are there buses?Yes, National Express operates services.
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What is the best way to travel?Train is generally more relaxing.
Quick Info
- From Llanelli, Wales, United Kingdom
- To Portsmouth, Hampshire, United Kingdom
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Modes
Best Time to Travel
May to September for pleasant seaside weather.
Things to Do in Portsmouth
1
Historic Dockyard
Explore the historic ships and the museum. It is a must-see.
2
Spinnaker Tower
Enjoy the views from the tower. It is a great cultural stop.
3
Gunwharf Quays
Enjoy shopping and dining in the city center. It is a great place for people-watching.
4
Southsea Beach
Relax on the beach. It is a great place for a walk.
Tags
Llanelli to Portsmouth train
driving Llanelli to Portsmouth
travel to Portsmouth
South Coast transport
Llanelli station
Portsmouth station
UK travel guide
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fastest route to Portsmouth
Wales to Portsmouth
