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Amended late night service London Paddington to Swansea service from Monday 21 to Thursday 24 December 

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Engineering work details

Starts Monday 21 December 2026 to Thursday 24 December 2026

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Train operators affected

  • Great Western Railway

Route(s) affected

Between London Paddington and Swansea

Description

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

The following services are affected:

Monday to Wednesday:

  • The 20:48 London Paddington to Swansea service will be diverted between Cardiff Central and Bridgend via Ninian Park (not calling), extending journey times by a few minutes

  • The 22:49 London Paddington to Swansea service will be diverted between Swindon and Bristol Parkway, and between Cardiff Central and Bridgend, extending journey times by a few minutes

Thursday:

  • The 20:48 London Paddington to Swansea service will terminate at Cardiff Central

  • The 21:48 and 22:49 London Paddington to Swansea services will not run

No onward travel will be provided between Cardiff Central and Swansea.

Check before you travel:

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

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