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1L21 1350 Cardiff Central to London Paddington
Departing on 10th December 2025

operated by
Great Western Railway
8 coaches
387170
387147
GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
Cardiff Central [CDF]
Pathed as Class 387 EMU at 110mph
forms from 5Q21 from Cardiff Central
1
1350
1350
1349¾
B
0.12
Cardiff East
pass
1351
pass
1351
0.75
Long Dyke Jn
pass
1352½
pass
1352
B
UM
1.45
Moorland Road Junction
pass
1353
pass
1353
2.10
Pengam Jn
pass
1353½
pass
1353¼
2.49
Rumney River Bridge Jn
pass
1354
pass
1353½
6.50
Marshfield
pass
1357
pass
1356
10.23
Ebbw Jn
pass
1359½
pass
1359½
UM
UM
10.78
Gaer Jn
pass
1400½
pass
1400¼
UM
11.60
Newport (South Wales) [NWP]
3
1403
1404
1402½
1404
1405¾
1406¾
+2
UM
UM
12.14
Maindee West Jn
pass
1405
pass
1408½
+3
12.36
Maindee East Jn
pass
1405½
pass
1408¾
+3
13.28
East Usk Jn.
pass
1406½
pass
1409¾
+3
14.19
Llanwern West Jn
pass
1407½
pass
1410¾
+3
19.25
Magor
pass
1411½
pass
1413½
+2
21.50
Severn Tunnel Junction [STJ]
4
pass
1413
pass
1416¼
+3
UM
UT
22.60
Severn Tunnel West
pass
1414
pass
1417
+3
27.08
Severn Tunnel East
pass
1417½
pass
1420¾
+3
28.46
Pilning [PIL]
1 ½
1
pass
1418½
pass
1421¾
+3
32.12
Patchway [PWY]
1
pass
1422½
pass
1424½
+2
33.34
Bristol Parkway [BPW]
3
1425
1427
1424½
1427½
1426½
1427½
UT
UB
38.02
Westerleigh Jn
pass
1430½
pass
1433¼
+2
40.51
Chipping Sodbury
pass
1432
pass
1435½
+3
45.15
Badminton
pass
1434½
pass
1438
+3
50.75
Hullavington
pass
1437½
pass
1441
+3
55.34
Little Somerford
pass
1440
pass
1444¼
+4
62.24
Wootton Bassett Jn
1
pass
1444
pass
1447½
+3
UB
UM
67.73
Swindon [SWI]
3
1450
1451
1450
1451½
1453¼
1454¾
+3
UR
UM
68.64
Highworth Jn
pass
1452½
pass
1456¾
+4
69.33
Swindon Stratton Green
pass
1453
pass
1457¼
+4
70.45
Swindon South Marston Jn
pass
1453½
pass
1457½
+3
72.66
Bourton
pass
1455
pass
1459
+4
78.57
Uffington (Oxfordshire)
pass
1458½
pass
1502¼
+3
81.16
Challow
pass
1500
pass
1503¼
+3
84.74
Wantage Road
pass
1502
pass
1506
+4
88.64
Steventon
pass
1504
pass
1507½
+3
89.77
Milton Junction
pass
1505
pass
1508¼
+3
91.41
Foxhall Jn [XJF]
pass
1505½
pass
1509¼
+3
91.71
Didcot West End
pass
1506
No report
92.06
Didcot Parkway [DID]
2
pass
1506
pass
1510
+4
92.30
Didcot East Jn
pass
1506
pass
1510¼
+4
93.59
Moreton Cutting
pass
1507
pass
1510½
+3
96.59
Cholsey [CHO]
2
pass
1508½
pass
1512¼
+3
100.36
Goring & Streatley [GOR]
1
2
pass
1510½
pass
1514
+3
ML
103.53
Pangbourne [PAN]
pass
1513
pass
1516¼
+3
106.44
Tilehurst [TLH]
2
pass
1515
pass
1519¼
+4
106.62
Tilehurst East Jn.
pass
1515
pass
1519
+3
UM
UR
108.46
Reading High Level Jn
pass
1516½
No report
ML
108.79
Reading Main Line West
pass
1517
pass
1522
+4
UR
DRL
109.16
Reading [RDG]
13
1517
1520
1518
1520
1523¼
1531¼
+11
109.35
Reading Main Line East
pass
1520½
pass
1532
+11
DRL
UR
110.01
Kennet Bridge Jn
pass
1521
pass
1533
+12
UR
UM
113.34
Twyford West
pass
1523½
pass
1535¾
+12
114.15
Twyford [TWY]
2
pass
1524
pass
1536¾
+12
ML
115.51
Ruscombe
pass
1524½
pass
1537
+12
120.77
Maidenhead [MAI]
2
pass
1527½
pass
1540½
+13
121.38
Maidenhead East
pass
1528
pass
1540½
+12
122.57
Taplow [TAP]
2
pass
1528½
pass
1541¼
+13
124.19
Burnham [BNM]
pass
1529
pass
1541¾
+12
126.05
Slough West
pass
1530
pass
1543
+12
126.60
Slough [SLO]
3
pass
1530½
pass
1543¾
+13
127.78
Dolphin Jn
pass
1531
pass
1544
+12
128.78
Langley [LNY]
2
pass
1531½
pass
1544¾
+13
130.36
Iver [IVR]
2
pass
1532½
pass
1545½
+13
131.65
West Drayton Jcn
pass
1533½
pass
1546
+12
131.79
West Drayton [WDT]
2
pass
1533½
pass
1546½
+13
132.29
West Drayton East
pass
1533½
pass
1546½
+12
133.07
Stockley Junction
pass
1534
pass
1546¾
+12
ML
ML
134.02
Heathrow Airport Jn
pass
1534½
pass
1547¼
+12
134.25
Hayes & Harlington [HAY]
2
pass
1534½
pass
1547½
+12
135.26
Southall West Jn
pass
1535
pass
1548
+12
136.10
Southall [STL]
2
pass
1535½
pass
1548
+12
ML
136.34
Southall East Jn
pass
1535½
pass
1548¼
+12
137.68
Hanwell [HAN]
1
pass
1536½
pass
1549¼
+12
138.42
West Ealing Junction
pass
1536½
pass
1549½
+13
138.50
West Ealing [WEA]
pass
1536½
pass
1549¾
+13
139.40
Ealing Broadway [EAL]
2
pass
1537
pass
1550½
+13
140.16
Acton West
1
pass
1537½
pass
1550¾
+13
ML
ML
140.75
Acton Main Line [AML]
2
pass
1538½
pass
1551¼
+13
141.43
Friars Jn
pass
1539
No report
141.76
Old Oak Common West
pass
1539½
pass
1551¾
+12
142.36
Old Oak Common East
pass
1540
pass
1552¼
+12
143.23
Ladbroke Grove
pass
1541
pass
1553¼
+12
UM
3
143.63
Portobello Jn (London)
pass
1542
pass
1553¾
+11
3
4
144.50
Royal Oak Junction
pass
1543
pass
1555
+12
145.11
London Paddington [PAD]
10
1544
1544
1557¾
+13
4
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