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Amended late night Great Western Railway services from London Paddington to Swansea from Monday 25 to Thursday 28 May 

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Engineering work details

Starts Monday 25 May 2026 to Thursday 28 May 2026

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Train operators affected

Route(s) affected

Between London Paddington and Swansea

Description

Engineering work is taking place overnight between Cardiff Central and Bridgend, closing some lines.

The 20:48 (departing earlier at 20:12) London Paddington to Swansea service will divert between Cardiff Central and Bridgend (via Ninian Park – not calling) arriving / departing Bridgend and beyond later than normal.

The 21:48 (departing earlier at 21:12) London Paddington to Swansea service will use this route as normal between Cardiff Central and Bridgend (via Ninian Park – not calling).

The 22:49 London Paddington to Swansea service will be diverted between Swindon and Newport and will connect with a replacement bus at Swindon to Bristol temple Meads, calling at Chippenham and Bath Spa (drop off only). The train will further divert between Cardiff Central and Bridgend (via Ninian Park – not calling) arriving / departing Bridgend and beyond later than normal.

Check before you travel:

You can plan your journey using the National Rail Enquiries Journey Planner

Replacement bus travel advice:

For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.

You can find the pick-up and set-down location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.

Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

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