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1B24 1638 London Paddington to Swansea
Departing on 30th December 2025

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
London Paddington [PAD]
forms from 1L22 from Swansea
5
1638
1638
2
Royal Oak Junction
pass
1639
2
Portobello Jn (London)
pass
1640
2
Ladbroke Grove
pass
1641
2
ML
Acton West
pass
1643½
ML
ML
Southall [STL]
1
pass
1645½
ML
Heathrow Airport Jn
pass
1646½
ML
Stockley Junction
pass
1647½
ML
RL
Slough [SLO]
1
4
pass
1653
RL
Slough West
pass
1655
ML
Maidenhead [MAI]
1
pass
1659½
ML
Twyford [TWY]
1
1
pass
1703
ML
Kennet Bridge Jn
pass
1706
DML
Reading [RDG]
9
1710
1713
1707½
1713
ML
Reading High Level Jn
pass
1714
ML
Goring & Streatley [GOR]
1
pass
1719
ML
Didcot Parkway [DID]
2
1
pass
1724
Wantage Road
pass
1730
Challow
pass
1732
Uffington (Oxfordshire)
1
pass
1733
Swindon [SWI]
4
1739
1742
1740
1742
Wootton Bassett Jn
pass
1746½
Hullavington
1
pass
1753
Westerleigh Jn
pass
1800½
Bristol Parkway [BPW]
2
1803
1805
1803½
1805½
Patchway [PWY]
2
pass
1807
Pilning [PIL]
½
2
pass
1809½
Severn Tunnel East
pass
1811
Severn Tunnel West
pass
1814½
Severn Tunnel Junction [STJ]
3
pass
1815½
ML
Llanwern West Jn
pass
1820½
Maindee East Jn
pass
1822
ML
Maindee West Jn
pass
1822½
Newport (South Wales) [NWP]
Pathed as Class 80x on diesel from here
2
1824
1825
1823½
1825
DM
Gaer Jn
pass
1826½
ML
Ebbw Jn
4
pass
1827½
Marshfield
1
pass
1834
Long Dyke Jn
pass
1839
E
Cardiff Central [CDF]
4
1842
1846
1842
1846
Cardiff Radyr Branch Jn
pass
1848
Penarth Curve North Jn
3
pass
1849
Ninian Park [NNP]
1
pass
1853
Leckwith North Jn
pass
1854
Pontyclun [PYC]
pass
1902½
Bridgend [BGN]
1
1910
1911
1910
1911½
Stormy
pass
1916
Margam Moors Jn.
pass
1918½
Margam East Jn
pass
1919½
Port Talbot Parkway [PTA]
1
1922
1923
1922
1923½
Court Sart Jn
pass
1927½
Neath [NTH]
1
1930
1931
1929½
1931
Swansea Loop East
pass
1940½
Swansea [SWA]
forms 1L36 to London Paddington
3
1942
1942
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