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1B15 1246 London Paddington to Carmarthen
Departing on 27th December 2025

operated by
Great Western Railway
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
London Paddington [PAD]
2
1246
1246
1246
2
Royal Oak Junction
pass
1247
pass
1247
2
Portobello Jn (London)
pass
1248
pass
1248
2
Ladbroke Grove
pass
1249
pass
1249
2
ML
Old Oak Common East
pass
1249½
pass
1249
Old Oak Common West
pass
1250
pass
1250
Friars Jn
pass
1250½
pass
1250
Acton Main Line [AML]
pass
1251
pass
1250
Acton West
pass
1251½
pass
1251
ML
ML
Ealing Broadway [EAL]
pass
1252
pass
1251
West Ealing [WEA]
pass
1252½
pass
1252
West Ealing Junction
pass
1252½
pass
1252
Hanwell [HAN]
pass
1252½
pass
1252
Southall East Jn
pass
1253½
pass
1253
Southall [STL]
1
1
pass
1253½
pass
1253
ML
Southall West Jn
pass
1254½
pass
1253
Hayes & Harlington [HAY]
pass
1255
pass
1254
Heathrow Airport Jn
pass
1255½
pass
1255
ML
Stockley Junction
pass
1256
pass
1255
West Drayton East
pass
1256½
pass
1255
West Drayton [WDT]
pass
1256½
pass
1256
West Drayton Jcn
pass
1256½
pass
1256
Iver [IVR]
pass
1257
pass
1256
Langley [LNY]
pass
1258
pass
1257
Dolphin Jn
pass
1258½
pass
1258
Slough [SLO]
2
pass
1259
pass
1258
ML
Slough West
pass
1259½
pass
1258
Burnham [BNM]
pass
1300½
pass
1259
Taplow [TAP]
pass
1301
pass
1300
Maidenhead East
pass
1301½
pass
1301
Maidenhead [MAI]
1
pass
1302
pass
1301
ML
Ruscombe
pass
1305
pass
1304
Twyford [TWY]
1
1
pass
1305½
pass
1305
ML
Twyford West
pass
1306
pass
1305
Kennet Bridge Jn
pass
1308½
pass
1308
DML
Reading Main Line East
pass
1309
pass
1308
Reading [RDG]
8
1310
1313
1310
1313
1309
1313
ML
Reading Main Line West
pass
1313½
pass
1313
Reading High Level Jn
pass
1314
pass
1314
ML
Tilehurst East Jn.
pass
1315
pass
1315
Tilehurst [TLH]
pass
1315
pass
1315
Pangbourne [PAN]
pass
1317
pass
1317
Goring & Streatley [GOR]
1
pass
1319
pass
1319
ML
Cholsey [CHO]
pass
1321
pass
1321
Moreton Cutting
pass
1323
pass
1322
Didcot East Jn
pass
1324
pass
1323
Didcot Parkway [DID]
1
pass
1324
pass
1323
Didcot West End
pass
1324
pass
1323
Foxhall Jn [XJF]
pass
1324½
pass
1324
Milton Junction
pass
1325
pass
1325
Steventon
pass
1326
pass
1325
Wantage Road
pass
1328
pass
1327
Challow
pass
1330
pass
1329
Uffington (Oxfordshire)
1
pass
1331
pass
1330
Bourton
pass
1334½
pass
1334
Swindon South Marston Jn
pass
1336
pass
1335
Swindon Stratton Green
pass
1336½
pass
1336
Highworth Jn
pass
1337
pass
1336
Swindon East Loop
pass
1337
pass
1336
Swindon [SWI]
4
1338
1340
1338
1340
1337
1340
Rushey Platt
pass
1341½
pass
1341
Wootton Bassett Jn
pass
1344½
pass
1344
Little Somerford
pass
1348½
pass
1348
Hullavington
1 ½
pass
1351
pass
1351
Badminton
pass
1354½
pass
1354
Chipping Sodbury
pass
1357½
pass
1357
Westerleigh Jn
1
pass
1359
pass
1359
Bristol Parkway [BPW]
2
1403
1404
1403
1404½
1403
1404
Patchway [PWY]
2
pass
1406½
pass
1406
Pilning [PIL]
2
pass
1409
pass
1408
Severn Tunnel East
pass
1410
pass
1409
Severn Tunnel West
pass
1413½
pass
1413
Severn Tunnel Junction [STJ]
3
pass
1414½
pass
1414
ML
Magor
pass
1416
pass
1415
Llanwern West Jn
pass
1419½
pass
1419
East Usk Jn.
pass
1420
pass
1419
Maindee East Jn
pass
1421
pass
1420
ML
Maindee West Jn
pass
1421½
pass
1421
Newport (South Wales) [NWP]
Pathed as Class 80x on diesel from here
2
1423
1424
1422½
1424½
1422
1424
DM
Gaer Jn
pass
1426
pass
1425
ML
Ebbw Jn
4
pass
1427
pass
1426
Marshfield
1
pass
1433½
pass
1432
Rumney River Bridge Jn
pass
1437
pass
1435
Pengam Jn
pass
1437½
pass
1436
Moorland Road Junction
pass
1438
pass
1436
Long Dyke Jn
pass
1438½
pass
1437
E
Cardiff East
pass
1440
pass
1439
Cardiff Central [CDF]
4
1441
1446
1441
1446
1439
1446
Cardiff West
pass
1447½
pass
1447
Cardiff Radyr Branch Jn
pass
1448
pass
1448
Penarth Curve North Jn
pass
1449
pass
1449
Ninian Park [NNP]
1
pass
1450
pass
1450
Leckwith South Jn
pass
1450
pass
1450
Leckwith Loop
pass
1450½
pass
1450
Leckwith North Jn
pass
1451
pass
1451
St Fagans L C
pass
1453½
pass
1453
Miskin
pass
1457½
pass
1457
Pontyclun [PYC]
pass
1459½
pass
1459
Llantrisant [LTI]
pass
1500
pass
1459
Llanharan [LLR]
pass
1501½
pass
1501
Pencoed [PCD]
pass
1503½
pass
1503
Tremains
pass
1506
pass
1505
Bridgend [BGN]
1
1507
1508
1507
1508½
1507
1508
Stormy
pass
1513
pass
1512
Pyle [PYL]
pass
1514
pass
1513
Margam Moors Jn.
pass
1515½
pass
1515
Margam East Jn
pass
1516½
pass
1516
Margam Middle Jn
pass
1517
pass
1516
Port Talbot East
pass
1518
pass
1517
Port Talbot Parkway [PTA]
1
1519
1520
1519
1520½
1518
1520
Baglan [BAJ]
pass
1522½
pass
1522
Briton Ferry East
pass
1523½
pass
1522
Briton Ferry [BNF]
pass
1524½
pass
1523
Court Sart Jn
pass
1524½
pass
1524
Neath [NTH]
1
1527
1528
1526½
1528
1526
1528
Skewen [SKE]
pass
1531
pass
1530
Llansamlet [LAS]
pass
1533½
pass
1533
Landore Junction
pass
1536½
pass
1536
Swansea Loop East
pass
1537½
pass
1537
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service divides here, reverses here
3
1539
1547
1539
1547
1538
1547
Swansea Loop East
pass
1548½
pass
1548
Swansea Loop West
pass
1550½
pass
1550
Cockett West
pass
1554
pass
1554
Gowerton [GWN]
pass
1556½
pass
1556
Duffryn West
pass
1559½
pass
1559
Llandeilo Jn
pass
1600
pass
1600
Llanelli [LLE]
DPL
1603
1604
1602½
1604
1602
1604
Pembrey & Burry Port [PBY]
1610
1611
1609½
1611
1609
1611
Kidwelly Junction
pass
1616
pass
1616
Kidwelly [KWL]
2
pass
1616½
pass
1616
Bertwyn Level Crossing
pass
1618
pass
1618
Ferryside [FYS]
1
pass
1620½
pass
1620
Carmarthen Jn [XCI]
pass
1629½
pass
1629
Carmarthen [CMN]
2
1631
1631
1630
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