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1B15 1248 London Paddington to Swansea
Departing on 8th December 2025

operated by
Great Western Railway
10 coaches
800017
800025
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
1247
-1
D3
0.41
Royal Oak Junction
pass
1249
pass
1249
3
2
1.28
Portobello Jn (London)
pass
1250½
pass
1250¾
1.68
Ladbroke Grove
pass
1251
pass
1251¼
2
DM
2.55
Old Oak Common East
pass
1251½
pass
1252¼
3.15
Old Oak Common West
pass
1252
pass
1252¾
3.48
Friars Jn
pass
1252½
pass
1253
4.16
Acton Main Line [AML]
pass
1253
pass
1253½
4.75
Acton West
pass
1253½
pass
1254
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1254
pass
1254¼
6.41
West Ealing [WEA]
pass
1254½
pass
1254¾
6.49
West Ealing Junction
pass
1254½
pass
1254¾
7.23
Hanwell [HAN]
pass
1254½
pass
1255
8.57
Southall East Jn
pass
1255½
pass
1256
9.01
Southall [STL]
1
pass
1255½
pass
1256¼
9.65
Southall West Jn
pass
1256
pass
1256¼
10.66
Hayes & Harlington [HAY]
1
pass
1256½
pass
1257½
+1
11.09
Heathrow Airport Jn
pass
1256½
pass
1257½
+1
ML
12.04
Stockley Junction
pass
1257
pass
1259
+2
DM
DR
12.62
West Drayton East
pass
1257½
pass
1303
+5
13.12
West Drayton [WDT]
3
pass
1257½
pass
1304
+6
13.26
West Drayton Jcn
pass
1257½
pass
1305
+7
14.55
Iver [IVR]
3
pass
1258
pass
1307½
+9
16.13
Langley [LNY]
3
pass
1259
pass
1310¼
+11
17.13
Dolphin Jn
pass
1259½
pass
1312½
+13
DR
DM
18.31
Slough [SLO]
2
pass
1300
pass
1314¼
+14
ML
19.06
Slough West
pass
1300½
pass
1314¾
+14
20.72
Burnham [BNM]
pass
1301½
pass
1316
+14
22.34
Taplow [TAP]
1
pass
1302
pass
1316¾
+14
23.53
Maidenhead East
pass
1302½
pass
1317¾
+15
24.14
Maidenhead [MAI]
1
pass
1303
pass
1318
+15
29.40
Ruscombe
pass
1306
pass
1320¼
+14
30.76
Twyford [TWY]
1
1
pass
1306½
pass
1321
+14
ML
31.57
Twyford West
pass
1307
pass
1321½
+14
35.10
Kennet Bridge Jn
pass
1309½
pass
1324¼
+14
35.56
Reading Main Line East
pass
1310
pass
1325¼
+15
35.75
Reading [RDG]
9
1311
1313
1311
1313
1326¼
1327¾
+14
DM
DM
36.12
Reading Main Line West
pass
1313½
pass
1328½
+14
36.45
Reading High Level Jn
pass
1314
pass
1329¼
+15
ML
38.29
Tilehurst East Jn.
pass
1315
pass
1330¼
+15
38.47
Tilehurst [TLH]
1
pass
1315
pass
1330¼
+15
41.38
Pangbourne [PAN]
pass
1317
pass
1331¾
+14
44.55
Goring & Streatley [GOR]
1
1
pass
1319
pass
1333½
+14
ML
48.32
Cholsey [CHO]
1
pass
1321
pass
1335¼
+14
51.32
Moreton Cutting
pass
1323
pass
1336½
+13
52.61
Didcot East Jn
pass
1324
pass
1337
+13
53.05
Didcot Parkway [DID]
1
pass
1324
pass
1337½
+13
53.20
Didcot West End
pass
1324
No report
53.50
Foxhall Jn [XJF]
pass
1324½
pass
1337¾
+13
55.14
Milton Junction
pass
1325
pass
1338
+13
56.27
Steventon
pass
1326
pass
1339
+13
60.17
Wantage Road
pass
1328
pass
1341½
+13
63.75
Challow
pass
1330
pass
1343½
+13
66.34
Uffington (Oxfordshire)
1
pass
1331
pass
1344½
+13
72.25
Bourton
pass
1334½
pass
1347½
+13
74.46
Swindon South Marston Jn
pass
1336
pass
1348½
+12
75.58
Swindon Stratton Green
pass
1336½
pass
1349½
+12
76.27
Highworth Jn
pass
1337
pass
1349½
+12
76.59
Swindon East Loop
pass
1337
pass
1350¾
+13
77.18
Swindon [SWI]
4
1337
1340
1338
1340
1351½
1352¾
+12
DM
DM
82.67
Wootton Bassett Jn
pass
1344½
pass
1357½
+13
DM
DB
89.57
Little Somerford
pass
1348½
pass
1401½
+13
94.16
Hullavington
1 2
pass
1351
pass
1404
+13
99.76
Badminton
pass
1355
pass
1406¼
+11
104.40
Chipping Sodbury
pass
1358½
pass
1409
+10
107.09
Westerleigh Jn
½
pass
1400½
pass
1410¾
+10
111.57
Bristol Parkway [BPW]
2
1403
1405
1404
1405½
1415
1420¼
+14
DB
DT
112.79
Patchway [PWY]
2
pass
1407
pass
1421½
+14
116.45
Pilning [PIL]
2
pass
1409½
pass
1425
+15
118.03
Severn Tunnel East
pass
1410½
pass
1426½
+16
122.31
Severn Tunnel West
pass
1414
pass
1429½
+15
123.41
Severn Tunnel Junction [STJ]
3
pass
1415
pass
1431
+16
DT
DM
125.66
Magor
pass
1416½
pass
1432½
+16
130.72
Llanwern West Jn
pass
1420
pass
1436
+16
131.63
East Usk Jn.
pass
1421
pass
1436½
+15
132.55
Maindee East Jn
pass
1421½
pass
1437½
+15
132.77
Maindee West Jn
pass
1422
pass
1438¼
+16
133.31
Newport (South Wales) [NWP]
2
1423
1425
1423
1425
1439½
1440¾
+15
DM
DM
134.13
Gaer Jn
pass
1426½
pass
1442¼
+15
DM
134.68
Ebbw Jn
pass
1427½
pass
1443
+15
DM
DM
138.41
Marshfield
1
pass
1430
pass
1445¾
+15
142.42
Rumney River Bridge Jn
pass
1433½
pass
1448
+14
143.01
Pengam Jn
pass
1434
pass
1448½
+14
143.46
Moorland Road Junction
pass
1434½
pass
1449
+14
144.16
Long Dyke Jn
pass
1435
pass
1450
+15
E
144.79
Cardiff East
pass
1436½
pass
1451
+14
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1436
1439
1437
1439
1452¼
1458½
+19
E
D
145.37
Cardiff West
pass
1440
No report
146.36
Leckwith North Jn
pass
1442
pass
1501¾
+19
D
DM
149.14
St Fagans L C
pass
1444
pass
1504¼
+20
154.08
Miskin
pass
1448
pass
1508¼
+20
156.21
Pontyclun [PYC]
1
pass
1450
pass
1510
+20
156.57
Llantrisant [LTI]
pass
1450½
No report
158.53
Llanharan [LLR]
2
pass
1452
pass
1512¼
+20
161.41
Pencoed [PCD]
1
pass
1454
pass
1514¼
+20
164.42
Tremains
pass
1456½
pass
1516¼
+19
165.26
Bridgend [BGN]
1
1458
1459
1457½
1459
1517¾
1519¼
+20
DM
DM
169.46
Stormy
pass
1503½
pass
1524¾
+21
171.21
Pyle [PYL]
1
pass
1504½
pass
1526
+21
173.45
Margam Moors Jn.
pass
1506
pass
1527¼
+21
DM
175.12
Margam East Jn
pass
1507
pass
1528½
+21
176.00
Margam Middle Jn
pass
1507½
pass
1528¾
+21
176.70
Port Talbot East
pass
1508½
No report
177.39
Port Talbot Parkway [PTA]
1
1510
1511
1509½
1511
1530¾
1532
+21
179.38
Baglan [BAJ]
1
pass
1513
pass
1535
+21
180.09
Briton Ferry East
pass
1514
pass
1535½
+21
181.20
Briton Ferry [BNF]
1
pass
1515
pass
1536¾
+21
181.38
Court Sart Jn
pass
1515
pass
1536½
+21
183.00
Neath [NTH]
1
1
1517
1518
1517
1518½
1538½
1540¼
+21
185.06
Skewen [SKE]
1
pass
1521½
pass
1543½
+22
186.68
Llansamlet [LAS]
1
pass
1524
pass
1545½
+21
189.42
Landore Junction
pass
1527
pass
1548½
+21
DM
DSM
190.23
Swansea Loop East
pass
1528
pass
1550
+22
190.67
Swansea [SWA]
3
1530
1530
1552
+22
DSM
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