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1B17 1235 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]
8
1235
1235
3
Royal Oak Junction
pass
1236
2
Portobello Jn (London)
pass
1237½
2
Ladbroke Grove
pass
1238
2
ML
Acton West
pass
1240½
ML
ML
Southall [STL]
1
pass
1242½
ML
Heathrow Airport Jn
pass
1243½
ML
Slough [SLO]
2
pass
1247
ML
Maidenhead [MAI]
1
pass
1250
ML
Twyford [TWY]
1
1
pass
1253½
ML
Kennet Bridge Jn
pass
1256½
DML
Reading [RDG]
7
1258
1301
1258
1301
WL
Oxford Road Jn
1
pass
1303
Southcote Jn
pass
1305
Theale [THE]
5
pass
1308
Newbury [NBY]
4½
Pathed as Class 80x on diesel from here
pass
1320
Bedwyn [BDW]
2½
1
pass
1333½
Pewsey [PEW]
1
pass
1342½
Woodborough
½
pass
1346
Lavington
1
pass
1351
Heywood Road Jn
3½
pass
1356½
Hawkeridge Jn
pass
1402½
Bradford Jn
1
pass
1409
Bathampton Jn
pass
1421
Bath Spa [BTH]
1
1
1425
1426
1424½
1426½
North Somerset Jn
pass
1436
DM
Bristol East Jn
pass
1436½
DF
Bristol Temple Meads [BRI]
Service reverses here
10
1438
1446
1438
1446
UF
Bristol East Jn
pass
1447
Dr Day's Jn
pass
1448
ML
Horfield Junction
pass
1451
Filton Abbey Wood [FIT]
1
2
pass
1452
DF
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
Service reverses here
2
1455
1503
1455
1503½
Patchway [PWY]
2
pass
1505
Pilning [PIL]
2
pass
1507½
Severn Tunnel East
pass
1508½
Severn Tunnel West
pass
1512
Severn Tunnel Junction [STJ]
3
pass
1513
ML
Llanwern West Jn
pass
1518
Maindee East Jn
pass
1519½
ML
Maindee West Jn
pass
1520
Newport (South Wales) [NWP]
2
1521
1523
1521
1523
DM
Gaer Jn
pass
1524½
ML
Ebbw Jn
pass
1525½
Marshfield
pass
1528
Moorland Road Junction
1
pass
1531½
RL
Long Dyke Jn
pass
1533
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1536
1537
1535½
1537½
D
Leckwith North Jn
pass
1540½
Pontyclun [PYC]
pass
1548½
Bridgend [BGN]
1
1556
1557
1556
1557½
Stormy
pass
1602
Margam Moors Jn.
pass
1604½
Margam East Jn
pass
1605½
Port Talbot Parkway [PTA]
1
1608
1609
1608
1609½
Court Sart Jn
pass
1613½
Neath [NTH]
1
1616
1617
1615½
1617
Swansea Loop East
pass
1626½
Swansea [SWA]
3
1628
1628
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