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1B27 1635 London Paddington to Swansea
Departing on 17th January 2026

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
London Paddington [PAD]
5
1635
1635
2
Royal Oak Junction
pass
1636
2
Portobello Jn (London)
pass
1637½
2
Ladbroke Grove
pass
1638
2
ML
Acton West
pass
1640½
ML
ML
Southall [STL]
1
pass
1642½
ML
Heathrow Airport Jn
pass
1643½
ML
Slough [SLO]
2
pass
1647
ML
Maidenhead [MAI]
1
pass
1650
ML
Twyford [TWY]
1
1
pass
1653½
ML
Kennet Bridge Jn
pass
1656½
DML
Reading [RDG]
2
7
1658
1701
1658
1701
WL
Oxford Road Jn
1
pass
1705
Southcote Jn
pass
1707
Theale [THE]
4
pass
1710
Newbury [NBY]
6
Pathed as Class 80x on diesel from here
pass
1721
Bedwyn [BDW]
1
pass
1736
Pewsey [PEW]
pass
1742½
Woodborough
½
pass
1745
Lavington
1 ½
pass
1750
Heywood Road Jn
4
pass
1756
Hawkeridge Jn
pass
1802½
Bradford Jn
1
pass
1809
Bathampton Jn
pass
1821
Bath Spa [BTH]
1
1
1825
1826
1824½
1826½
North Somerset Jn
pass
1836
DM
Bristol East Jn
pass
1836½
UF
Bristol Temple Meads [BRI]
Service reverses here
5
1838
1846
1838
1846
Bristol East Jn
pass
1847
Dr Day's Jn
pass
1848
ML
Horfield Junction
pass
1851
Filton Abbey Wood [FIT]
1
2
pass
1852
DF
Bristol Parkway [BPW]
½
Pathed as Class 80x on electric from here
Service reverses here
2
1856
1904
1855½
1904½
Patchway [PWY]
2
pass
1906½
Pilning [PIL]
2
pass
1909
Severn Tunnel East
pass
1910
Severn Tunnel West
½
pass
1913½
Severn Tunnel Junction [STJ]
3
pass
1915
ML
Llanwern West Jn
1
pass
1920
Maindee East Jn
pass
1922½
ML
Maindee West Jn
pass
1923
Newport (South Wales) [NWP]
2
1924
1926
1924
1926
DM
Gaer Jn
pass
1927½
ML
Ebbw Jn
pass
1928½
Marshfield
1
pass
1931
Long Dyke Jn
pass
1936
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1939
1940
1938½
1940½
D
Leckwith North Jn
pass
1943½
Pontyclun [PYC]
pass
1951½
Bridgend [BGN]
1
1959
2000
1959
2000½
Stormy
pass
2005
Margam Moors Jn.
pass
2007½
Margam East Jn
pass
2008½
Port Talbot Parkway [PTA]
1
2011
2012
2011
2012½
Court Sart Jn
pass
2016½
Neath [NTH]
1
2019
2020
2018½
2020
Swansea Loop East
pass
2029½
Swansea [SWA]
3
2031
2031
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