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1B15 1248 London Paddington to Swansea
Departing on 16th December 2025

operated by
Great Western Railway
9 coaches
800319
GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
London Paddington [PAD]
Pathed as Class 80x on electric at 125mph
9
1248
1248
1248¼
3
0.41
Royal Oak Junction
pass
1249
pass
1249½
3
2
1.28
Portobello Jn (London)
pass
1250½
pass
1250¾
1.68
Ladbroke Grove
pass
1251
pass
1251½
2
DM
2.55
Old Oak Common East
pass
1251½
pass
1252¼
3.15
Old Oak Common West
pass
1252
pass
1253
3.48
Friars Jn
pass
1252½
pass
1253¼
4.16
Acton Main Line [AML]
pass
1253
pass
1253¾
+1
4.75
Acton West
pass
1253½
pass
1254¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1254
pass
1254½
6.41
West Ealing [WEA]
pass
1254½
pass
1255
6.49
West Ealing Junction
pass
1254½
pass
1255
7.23
Hanwell [HAN]
pass
1254½
pass
1255½
8.57
Southall East Jn
pass
1255½
pass
1256¼
9.01
Southall [STL]
1
pass
1255½
pass
1256¾
+1
9.65
Southall West Jn
pass
1256
pass
1256¾
10.66
Hayes & Harlington [HAY]
1
pass
1256½
pass
1257½
+1
11.09
Heathrow Airport Jn
pass
1256½
pass
1257¼
ML
12.04
Stockley Junction
pass
1257
pass
1257¾
12.62
West Drayton East
pass
1257½
pass
1258
13.12
West Drayton [WDT]
1
pass
1257½
pass
1258½
+1
13.26
West Drayton Jcn
pass
1257½
pass
1258¾
+1
14.55
Iver [IVR]
1
pass
1258
pass
1259¼
+1
16.13
Langley [LNY]
1
pass
1259
pass
1300¼
+1
17.13
Dolphin Jn
pass
1259½
pass
1300½
+1
18.31
Slough [SLO]
2
pass
1300
pass
1301
+1
ML
19.06
Slough West
pass
1300½
pass
1301¼
+1
20.72
Burnham [BNM]
pass
1301½
pass
1302
22.34
Taplow [TAP]
1
pass
1302
pass
1302¾
23.53
Maidenhead East
pass
1302½
pass
1303¾
+1
24.14
Maidenhead [MAI]
1
pass
1303
pass
1304
+1
29.40
Ruscombe
pass
1306
pass
1306¼
30.76
Twyford [TWY]
1
1
pass
1306½
pass
1307
ML
31.57
Twyford West
pass
1307
pass
1307¼
35.10
Kennet Bridge Jn
pass
1309½
pass
1310¼
35.56
Reading Main Line East
pass
1310
pass
1310¾
35.75
Reading [RDG]
9
1311
1313
1311
1313
1312
1313¼
DM
DM
36.12
Reading Main Line West
pass
1313½
pass
1314
36.45
Reading High Level Jn
pass
1314
pass
1314¾
ML
38.29
Tilehurst East Jn.
pass
1315
pass
1315¾
38.47
Tilehurst [TLH]
1
pass
1315
pass
1316
41.38
Pangbourne [PAN]
pass
1317
pass
1317¼
44.55
Goring & Streatley [GOR]
1
1
pass
1319
pass
1319
ML
48.32
Cholsey [CHO]
1
pass
1321
pass
1320¾
51.32
Moreton Cutting
pass
1323
pass
1322
52.61
Didcot East Jn
pass
1324
pass
1322½
-1
53.05
Didcot Parkway [DID]
1
pass
1324
pass
1323
53.20
Didcot West End
pass
1324
No report
53.50
Foxhall Jn [XJF]
pass
1324½
pass
1323¼
55.14
Milton Junction
pass
1325
pass
1323¾
-1
56.27
Steventon
pass
1326
pass
1324½
-1
60.17
Wantage Road
pass
1328
pass
1327
63.75
Challow
pass
1330
pass
1329¼
66.34
Uffington (Oxfordshire)
1
pass
1331
pass
1330¼
72.25
Bourton
pass
1334½
pass
1333
-1
74.46
Swindon South Marston Jn
pass
1336
pass
1334¼
-1
75.58
Swindon Stratton Green
pass
1336½
pass
1335¼
-1
76.27
Highworth Jn
pass
1337
pass
1337
76.59
Swindon East Loop
pass
1337
pass
1338¼
+1
77.18
Swindon [SWI]
4
1337
1340
1338
1340
1339¾
1340¾
DM
DM
82.67
Wootton Bassett Jn
pass
1344½
pass
1345½
+1
DM
DB
89.57
Little Somerford
pass
1348½
pass
1349½
+1
94.16
Hullavington
1 2
pass
1351
pass
1352½
+1
99.76
Badminton
pass
1355
pass
1401½
+6
104.40
Chipping Sodbury
pass
1358½
pass
1408¼
+9
107.09
Westerleigh Jn
½
pass
1400½
pass
1410
+9
111.57
Bristol Parkway [BPW]
2
1403
1405
1404
1405½
1415
1416½
+11
DB
DT
112.79
Patchway [PWY]
2
pass
1407
pass
1418¼
+11
116.45
Pilning [PIL]
2
pass
1409½
pass
1421¼
+11
118.03
Severn Tunnel East
pass
1410½
pass
1422¼
+11
122.31
Severn Tunnel West
pass
1414
pass
1425½
+11
123.41
Severn Tunnel Junction [STJ]
3
pass
1415
pass
1427
+12
DT
DM
125.66
Magor
pass
1416½
pass
1428½
+12
130.72
Llanwern West Jn
pass
1420
pass
1432¼
+12
131.63
East Usk Jn.
pass
1420½
pass
1432¾
+12
132.55
Maindee East Jn
pass
1421½
pass
1434
+12
ML
132.77
Maindee West Jn
pass
1422
pass
1434¾
+12
DM
DR
133.31
Newport (South Wales) [NWP]
1
1423
1425
1423
1425
1436¼
1438
+13
DR
DR
134.13
Gaer Jn
pass
1426½
pass
1440
+13
DR
DM
134.68
Ebbw Jn
pass
1427½
pass
1441
+13
DM
DM
138.41
Marshfield
pass
1430
pass
1443¾
+13
142.42
Rumney River Bridge Jn
pass
1433
pass
1446¼
+13
143.01
Pengam Jn
pass
1433
pass
1446¾
+13
143.46
Moorland Road Junction
1
pass
1433½
pass
1447½
+14
DM
DR
144.16
Long Dyke Jn
pass
1435
pass
1448½
+13
E
144.79
Cardiff East
pass
1436½
pass
1449½
+13
DR
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1437
1439
1437½
1439½
1450¾
1453
+13
E
D
145.37
Cardiff West
pass
1440½
No report
146.36
Leckwith North Jn
pass
1442½
pass
1456¼
+13
D
DM
149.14
St Fagans L C
pass
1444½
pass
1458¾
+14
154.08
Miskin
pass
1448½
pass
1502¾
+14
156.21
Pontyclun [PYC]
1
pass
1450½
pass
1504¾
+14
156.57
Llantrisant [LTI]
pass
1451
No report
158.53
Llanharan [LLR]
2
pass
1452½
pass
1506¾
+14
161.41
Pencoed [PCD]
1
pass
1454½
pass
1508¾
+14
164.42
Tremains
pass
1457
pass
1510¾
+13
165.26
Bridgend [BGN]
1
1458
1459
1458
1459½
1512¼
1514½
+15
DM
DM
169.46
Stormy
pass
1504
pass
1519½
+15
171.21
Pyle [PYL]
1
pass
1505
pass
1520¾
+15
173.45
Margam Moors Jn.
pass
1506½
pass
1522
+15
DM
175.12
Margam East Jn
pass
1507½
pass
1523¼
+15
176.00
Margam Middle Jn
pass
1508
pass
1523½
+15
176.70
Port Talbot East
pass
1509
No report
177.39
Port Talbot Parkway [PTA]
1
1510
1511
1510
1511½
1525¾
1527
+15
179.38
Baglan [BAJ]
1
pass
1513½
pass
1530
+16
180.09
Briton Ferry East
pass
1514½
pass
1530½
+16
181.20
Briton Ferry [BNF]
1
pass
1515½
pass
1531¾
+16
181.38
Court Sart Jn
pass
1515½
pass
1531¾
+16
183.00
Neath [NTH]
1
1
1517
1518
1517½
1519
1533¾
1535½
+16
185.06
Skewen [SKE]
1
pass
1522
pass
1539
+17
186.68
Llansamlet [LAS]
1
pass
1524½
pass
1541¼
+17
189.42
Landore Junction
pass
1527½
pass
1544
+16
DM
DSM
190.23
Swansea Loop East
pass
1528½
pass
1545½
+17
190.67
Swansea [SWA]
3
1530
1530
1547½
+17
DSM
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