Disruptions & planned work

Engineering work is taking place between Swansea and Carmarthen, closing all lines. Buses will replace trains between Swansea and Carmarthen. Check before you travel: These changes are not currently shown in the National Rail Journey Planner, please check back nearer to the time of travel. 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 drop-off 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.

From 8 Nov 2026, 00:00 · Until 8 Nov 2026, 23:59 · Source changed 21 Oct 2026, 14:25

Operators: Great Western Railway, Transport for Wales

Engineering work is taking place overnight between Port Talbot and Llanelli, closing some lines. Monday to Wednesday: 19:05 Pembroke Dock to Cardiff Central service will arrive into Cardiff Central later Monday to Thursday: 18:35 Shrewsbury to Carmarthen service will terminate at Carmarthen. Rail Replacement buses will depart Llanelli at 22:45 towards Swansea 21:07 Pembroke Dock to Cardiff Central service will divert after Llanelli by an alternative route, not calling at stations between Gowerton and Baglan via Swansea. A rail replacement bus will depart Llanelli at 23:20 to Cardiff Central calling at all stations via Swansea. 21:11 Milford Haven to Cardiff Central service will divert after Llanelli by an alternative route, not calling at stations between Gowerton and Baglan via Swansea. A rail replacement bus will depart Llanelli at 22:50 to Cardiff Central, calling at all stations via Swansea 22:12 Bristol Temple Meads to Carmarthen service will divert after Port Talbot Parkway by an alternative route, not calling at stations between Baglan and Gowerton via Swansea.. A rail replacement bus will depart Port Talbot Parkway at 00:26 to Carmarthen, calling at all stations Tuesday to Friday: 05:13 service from Swansea to Llandovery will be amended to start from Carmarthen at 05:07. A rail replacement bus will depart Swansea at 04:40 and run to Llanelli, where it will connect with the amended train service 05:43 Swansea to Manchester Piccadilly service will terminate at Cardiff Central and connect with the 06:46 Cardiff Central to Manchester Piccadilly service Check before you travel: You can plan your journey using the National Rail 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 drop-off 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.

From 14 Dec 2026, 00:00 · Until 18 Dec 2026, 23:59 · Source changed 8 Oct 2026, 11:56

Operators: Transport for Wales

Engineering work is taking place overnight at Swansea station, closing some lines. Wednesday and Thursday: The 18:35 Shrewsbury to Swansea service will run between Shrewsbury and Llanelli. A replacement bus will run between Llanelli and Swansea. The 21:07 Pembroke Dock to Cardiff Central will be diverted and will not call at stations between Whitland and Port Talbot Parkway / Cardiff Central. A bus will run between Swansea and Cardiff Central for intermediate stops. The 23:17 Cardiff Central to Carmarthen train will be diverted via Bynea. The 23:46 Carmarthen to Swansea train will not run and will be replaced by a bus. Thursday and Friday: The 04:37 Carmarthen to Swansea train will not run and will be replaced by a bus. The 05:13 Swansea to Llandovery will run between Llanelli and Llandovery. A replacement bus will run between Swansea and Llanelli to connect with train. Check before you travel: You can plan your journey using the National Rail 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 drop-off 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.

From 4 Nov 2026, 00:00 · Until 6 Nov 2026, 23:59 · Source changed 24 Sept 2026, 12:58

Operators: Transport for Wales

Engineering work is taking place between Carmarthen and Pembroke Dock / Milford Haven / Fishguard Harbour, closing all lines. This means that buses will replace trains between Carmarthen and Pembroke Dock / Milford Haven / Fishguard Harbour. Check before you travel: You can plan your journey using the National Rail 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 drop-off 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.

From 1 Nov 2026, 00:00 · Until 1 Nov 2026, 23:59 · Source changed 24 Sept 2026, 11:10

Operators: Transport for Wales

Engineering work is taking place between Carmarthen and Pembroke Dock / Milford Haven / Fishguard Harbour, closing all lines. Buses replace trains between Carmarthen and Pembroke Dock / Milford Haven / Fishguard Harbour. Check before you travel: You can plan your journey using the National Rail 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 drop-off 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.

From 25 Oct 2026, 00:00 · Until 25 Oct 2026, 23:59 · Source changed 16 Sept 2026, 11:49

Operators: Transport for Wales

Engineering work is taking place overnight between Carmarthen and Port Talbot Parkway, closing some lines. Trains will be diverted via freight lines between Llanelli and Port Talbot Parkway. Replacement buses will run between Carmarthen and Port Talbot Parkway. The 21:07 Pembroke Dock to Cardiff Central service will depart Carmarthen at 22:35 (6 minutes earlier than normal). Check before you travel: You can plan your journey using the National Rail 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 drop-off 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.

From 3 Dec 2026, 00:00 · Until 3 Dec 2026, 23:59 · Source changed 9 Sept 2026, 07:54

Operators: Transport for Wales

Engineering work is taking place between Pembroke Dock and Whitland, closing all lines. From Saturday 7 to Friday 13 November, buses will replace trains between Pembroke Dock and Carmarthen. 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 drop-off 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.

From 7 Nov 2026, 00:00 · Until 13 Nov 2026, 23:59 · Source changed 28 Aug 2026, 14:38

Operators: Transport for Wales

Engineering work is taking place in the Carmarthen area, closing all lines West of Carmarthen. All day on Sunday buses will replace trains between Carmarthen and Pembroke Dock / Milford Haven / Fishguard Harbour. 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 drop-off 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.

From 15 Nov 2026, 00:00 · Until 15 Nov 2026, 23:59 · Source changed 28 Aug 2026, 11:52

Operators: Transport for Wales