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1L21 1350 Cardiff Central to London Paddington
Departing on 15th April 2026

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
Cardiff Central [CDF]
forms from 5L21 from Cardiff Central
1
1350
1350
B
Long Dyke Jn
pass
1352
ML
Marshfield
pass
1356½
Ebbw Jn
pass
1359
Gaer Jn
½
pass
1359½
UM
Newport (South Wales) [NWP]
3
1402
1404
1402
1404½
ML
Maindee West Jn
½
pass
1405½
Maindee East Jn
pass
1406½
ML
Llanwern West Jn
pass
1408½
Severn Tunnel Junction [STJ]
4
pass
1413½
Severn Tunnel West
pass
1414½
Severn Tunnel East
pass
1418
Pilning [PIL]
1 ½
1
pass
1419
Patchway [PWY]
1
pass
1423
Bristol Parkway [BPW]
3
1425
1427
1424½
1427½
Westerleigh Jn
pass
1431
Hullavington
pass
1437½
Wootton Bassett Jn
1
pass
1444
Swindon [SWI]
3
1450
1451
1449½
1451½
Uffington (Oxfordshire)
pass
1458
Challow
pass
1459½
Wantage Road
1
pass
1501
Didcot Parkway [DID]
2
pass
1505½
ML
Goring & Streatley [GOR]
1
pass
1509½
ML
Reading High Level Jn
pass
1515
ML
Reading [RDG]
11
1516
1520
1516½
1520
UML
Kennet Bridge Jn
pass
1521
ML
Twyford [TWY]
2
pass
1524
ML
Maidenhead [MAI]
2
pass
1527½
ML
Slough [SLO]
3
pass
1530½
ML
Stockley Junction
pass
1533½
ML
ML
Heathrow Airport Jn
pass
1534
ML
Southall [STL]
2
pass
1535
ML
Acton West
1
pass
1536½
ML
ML
Ladbroke Grove
pass
1540
ML
3
Portobello Jn (London)
1½
pass
1540½
3
Royal Oak Junction
pass
1543
2
London Paddington [PAD]
1
1544
1544
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