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1B15 1248 London Paddington to Swansea
Departing on 12th December 2025

operated by
Great Western Railway
9 coaches
800312
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
11
1248
1248
1248
4
0.41
Royal Oak Junction
pass
1249
pass
1249¼
4
4
1.28
Portobello Jn (London)
pass
1250½
pass
1252½
+2
1.68
Ladbroke Grove
pass
1251
pass
1253¼
+2
4
DR
2.55
Old Oak Common East
pass
1251½
pass
1254
+2
3.15
Old Oak Common West
pass
1252
pass
1254¾
+2
3.48
Friars Jn
pass
1252½
pass
1255½
+3
4.16
Acton Main Line [AML]
3
pass
1253
pass
1256¾
+3
4.75
Acton West
pass
1253½
pass
1258½
+5
DR
DM
5.51
Ealing Broadway [EAL]
1
pass
1254
pass
1258¾
+5
6.41
West Ealing [WEA]
pass
1254½
pass
1259¾
+5
6.49
West Ealing Junction
pass
1254½
pass
1259¾
+5
7.23
Hanwell [HAN]
pass
1254½
pass
1300¼
+5
8.57
Southall East Jn
pass
1255½
pass
1301
+5
9.01
Southall [STL]
1
pass
1255½
pass
1301½
+6
9.65
Southall West Jn
pass
1256
pass
1301½
+5
10.66
Hayes & Harlington [HAY]
1
pass
1256½
pass
1302¼
+6
11.09
Heathrow Airport Jn
pass
1256½
pass
1302
+5
ML
12.04
Stockley Junction
pass
1257
pass
1302½
+5
12.62
West Drayton East
pass
1257½
pass
1303
+5
13.12
West Drayton [WDT]
1
pass
1257½
pass
1303½
+6
13.26
West Drayton Jcn
pass
1257½
pass
1303½
+6
14.55
Iver [IVR]
1
pass
1258
pass
1304
+5
16.13
Langley [LNY]
1
pass
1259
pass
1305
+6
17.13
Dolphin Jn
pass
1259½
pass
1305¼
+6
18.31
Slough [SLO]
2
pass
1300
pass
1305¾
+5
ML
19.06
Slough West
pass
1300½
pass
1306
+5
20.72
Burnham [BNM]
pass
1301½
pass
1306¾
+5
22.34
Taplow [TAP]
1
pass
1302
pass
1307½
+5
23.53
Maidenhead East
pass
1302½
pass
1308½
+5
24.14
Maidenhead [MAI]
1
pass
1303
pass
1308¾
+5
29.40
Ruscombe
pass
1306
pass
1311
+5
30.76
Twyford [TWY]
1
1
pass
1306½
pass
1311¾
+5
ML
31.57
Twyford West
pass
1307
pass
1312¼
+5
35.10
Kennet Bridge Jn
pass
1309½
pass
1314½
+5
35.56
Reading Main Line East
pass
1310
pass
1315¼
+5
35.75
Reading [RDG]
9
1311
1313
1311
1313
1316¼
1321
+8
DM
DM
36.12
Reading Main Line West
pass
1313½
pass
1321¾
+8
36.45
Reading High Level Jn
pass
1314
pass
1322½
+8
ML
38.29
Tilehurst East Jn.
pass
1315
pass
1323½
+8
38.47
Tilehurst [TLH]
1
pass
1315
pass
1323½
+8
41.38
Pangbourne [PAN]
pass
1317
pass
1325
+8
44.55
Goring & Streatley [GOR]
1
1
pass
1319
pass
1326¾
+7
ML
48.32
Cholsey [CHO]
1
pass
1321
pass
1328½
+7
51.32
Moreton Cutting
pass
1323
pass
1329¾
+6
52.61
Didcot East Jn
pass
1324
pass
1330¼
+6
53.05
Didcot Parkway [DID]
1
pass
1324
pass
1330¾
+6
53.20
Didcot West End
pass
1324
No report
53.50
Foxhall Jn [XJF]
pass
1324½
pass
1331
+6
55.14
Milton Junction
pass
1325
pass
1331½
+6
56.27
Steventon
pass
1326
pass
1332¼
+6
60.17
Wantage Road
pass
1328
pass
1334¾
+6
63.75
Challow
pass
1330
pass
1336¾
+6
66.34
Uffington (Oxfordshire)
1
pass
1331
pass
1338
+7
72.25
Bourton
pass
1334½
pass
1340¾
+6
74.46
Swindon South Marston Jn
pass
1336
pass
1342
+6
75.58
Swindon Stratton Green
pass
1336½
pass
1342¾
+6
76.27
Highworth Jn
pass
1337
pass
1343
+6
76.59
Swindon East Loop
pass
1337
pass
1344¼
+7
77.18
Swindon [SWI]
4
1337
1340
1338
1340
1345
1346½
+6
DM
DM
82.67
Wootton Bassett Jn
pass
1344½
pass
1351¼
+6
DM
DB
89.57
Little Somerford
pass
1348½
pass
1355½
+7
94.16
Hullavington
1 2
pass
1351
pass
1358
+7
99.76
Badminton
pass
1355
pass
1400¼
+5
104.40
Chipping Sodbury
pass
1358½
pass
1403¼
+4
107.09
Westerleigh Jn
½
pass
1400½
pass
1405
+4
111.57
Bristol Parkway [BPW]
2
1403
1405
1404
1405½
1408¾
1410¾
+5
DB
DT
112.79
Patchway [PWY]
2
pass
1407
pass
1412¼
+5
116.45
Pilning [PIL]
2
pass
1409½
pass
1415¼
+5
118.03
Severn Tunnel East
pass
1410½
pass
1416¼
+5
122.31
Severn Tunnel West
pass
1414
pass
1419½
+5
123.41
Severn Tunnel Junction [STJ]
3
pass
1415
pass
1421
+6
DT
DM
125.66
Magor
pass
1416½
pass
1422½
+6
130.72
Llanwern West Jn
pass
1420
pass
1426
+6
131.63
East Usk Jn.
pass
1421
pass
1426¾
+5
132.55
Maindee East Jn
pass
1421½
pass
1427½
+6
132.77
Maindee West Jn
pass
1422
pass
1428½
+6
133.31
Newport (South Wales) [NWP]
2
1423
1425
1423
1425
1429¾
1431½
+6
DM
DM
134.13
Gaer Jn
pass
1426½
pass
1433¼
+6
DM
134.68
Ebbw Jn
pass
1427½
pass
1434
+6
DM
DM
138.41
Marshfield
1
pass
1430
pass
1436¾
+6
142.42
Rumney River Bridge Jn
pass
1433½
pass
1439
+5
143.01
Pengam Jn
pass
1434
pass
1439½
+5
143.46
Moorland Road Junction
pass
1434½
pass
1440
+5
144.16
Long Dyke Jn
pass
1435
pass
1440¾
+5
E
144.79
Cardiff East
pass
1436½
pass
1442
+5
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1436
1439
1437
1439
1443
1445¾
+6
E
D
145.37
Cardiff West
pass
1440
No report
146.36
Leckwith North Jn
pass
1442
pass
1449
+7
D
DM
149.14
St Fagans L C
pass
1444
pass
1451¾
+7
154.08
Miskin
pass
1448
pass
1455½
+7
156.21
Pontyclun [PYC]
1
pass
1450
pass
1457½
+7
156.57
Llantrisant [LTI]
pass
1450½
No report
158.53
Llanharan [LLR]
2
pass
1452
pass
1459¾
+7
161.41
Pencoed [PCD]
1
pass
1454
pass
1501¾
+7
164.42
Tremains
pass
1456½
pass
1503¾
+7
165.26
Bridgend [BGN]
1
1458
1459
1457½
1459
1505½
1507
+8
DM
DM
169.46
Stormy
pass
1503½
pass
1512¾
+9
171.21
Pyle [PYL]
1
pass
1504½
pass
1514¼
+9
173.45
Margam Moors Jn.
pass
1506
pass
1515¼
+9
DM
175.12
Margam East Jn
pass
1507
pass
1516¾
+9
176.00
Margam Middle Jn
pass
1507½
pass
1517
+9
176.70
Port Talbot East
pass
1508½
No report
177.39
Port Talbot Parkway [PTA]
1
1510
1511
1509½
1511
1519
1520¾
+9
179.38
Baglan [BAJ]
1
pass
1513
pass
1523¾
+10
180.09
Briton Ferry East
pass
1514
pass
1524¼
+10
181.20
Briton Ferry [BNF]
1
pass
1515
pass
1525½
+10
181.38
Court Sart Jn
pass
1515
pass
1525½
+10
183.00
Neath [NTH]
1
1
1517
1518
1517
1518½
1527½
1529
+10
185.06
Skewen [SKE]
1
pass
1521½
pass
1532½
+11
186.68
Llansamlet [LAS]
1
pass
1524
pass
1534¾
+11
189.42
Landore Junction
pass
1527
pass
1537¾
+10
DM
DSM
190.23
Swansea Loop East
pass
1528
pass
1539
+11
190.67
Swansea [SWA]
3
1530
1530
1541
+11
DSM
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