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1L20 1127 Carmarthen to London Paddington
Departing on 3rd December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800026
10 coaches
Swansea - London Paddington
800026
800036
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
Carmarthen [CMN]
Pathed as Class 80x on diesel at 125mph
2
1127
1127
1127
U2
Carmarthen Jn [XCI]
pass
1129
pass
1129
UU
Ferryside [FYS]
pass
1137½
No report
Kidwelly [KWL]
pass
1141
No report
Kidwelly Junction
pass
1141½
No report
Pembrey & Burry Port [PBY]
1146
1147
1146
1147½
No report
Llanelli [LLE]
2
1154
1155
1153½
1155
1153½
1155
Llandeilo Jn
pass
1157½
pass
1157½
Duffryn West
pass
1158
pass
1158
Gowerton [GWN]
2
pass
1201½
pass
1200¾
Cockett West
1
pass
1203
pass
1202½
Swansea Loop West
1½
pass
1207
pass
1206½
UM
USL
Swansea Loop East
pass
1210½
pass
1210¼
USL
USM
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1213
1222
1213
1222
1213
1222½
USM
USM
Swansea Loop East
pass
1223½
pass
1224¼
Landore Junction
pass
1224½
pass
1225½
+1
USM
UM
Llansamlet [LAS]
2
pass
1227½
pass
1228½
+1
Skewen [SKE]
2
pass
1229½
pass
1230¾
+1
Neath [NTH]
2
1233
1234
1232½
1234
1233
1234¾
Briton Ferry West Jn
pass
1236½
pass
1237½
+1
Port Talbot Parkway [PTA]
2
1240
1241
1240
1241½
1241¼
1243
+1
Port Talbot East
pass
1242½
No report
Margam Middle Jn
pass
1243½
pass
1244¼
Margam East Jn
pass
1244½
pass
1245¾
+1
Margam Moors Jn.
pass
1245½
pass
1247
+1
UM
Pyle [PYL]
2
pass
1247
pass
1248½
+1
Stormy
pass
1248½
pass
1250½
+2
At platform
Bridgend [BGN]
2
1253
1254
1252½
1254
1254¼
1256½
+2
UM
UM
Tremains
pass
1255
pass
1258½
+3
Pencoed Up Passenger Loop
pass
1257½
No report
Pencoed [PCD]
2
pass
1258
pass
1301
+3
Llanharan [LLR]
1
pass
1300
pass
1302¾
+2
Llantrisant [LTI]
pass
1301½
No report
Pontyclun [PYC]
1
2
pass
1302
pass
1305
+3
Miskin
pass
1304
pass
1307
+3
St Fagans L C
pass
1308½
pass
1311
+2
Leckwith North Jn
½
pass
1311
pass
1313½
+2
UM
C
Cardiff West
pass
1313½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
1314
1318
1315
1318
1317¼
1320¼
+2
C
B
Cardiff East
pass
1318½
pass
1321¾
+3
Long Dyke Jn
pass
1320
pass
1322¾
+2
B
UM
Moorland Road Junction
pass
1320½
pass
1323¾
+3
Pengam Jn
pass
1321
pass
1324
+3
Rumney River Bridge Jn
pass
1321
pass
1324¼
+3
Marshfield
pass
1324
pass
1327
+3
Ebbw Jn
pass
1326½
pass
1329¾
+3
UM
UM
Gaer Jn
pass
1327½
pass
1330
+2
UM
Newport (South Wales) [NWP]
3
1329
1331
1329
1331
1332½
1334¾
+3
UM
UM
Maindee West Jn
pass
1332
pass
1336½
+4
Maindee East Jn
pass
1332½
pass
1337
+4
East Usk Jn.
pass
1333
pass
1338
+4
Llanwern West Jn
½
pass
1334
pass
1339
+5
Magor
pass
1338
pass
1341¾
+3
Severn Tunnel Junction [STJ]
4
pass
1340
pass
1344¾
+4
UM
UT
Severn Tunnel West
pass
1341
pass
1345½
+4
Severn Tunnel East
½
pass
1344½
pass
1349
+4
Pilning [PIL]
1
1
pass
1346
pass
1350¼
+4
Patchway [PWY]
1
pass
1349½
pass
1353¼
+3
Bristol Parkway [BPW]
4
1352
1355
1352
1356
1356¼
1359¾
+3
UT
UB
Westerleigh Jn
pass
1400
pass
1405
+5
Chipping Sodbury
pass
1401½
pass
1406¾
+5
Badminton
pass
1403½
pass
1409
+5
Hullavington
pass
1406½
pass
1411½
+5
Little Somerford
pass
1409
pass
1414½
+5
Wootton Bassett Jn
1
pass
1413
pass
1417¾
+4
UB
UM
Swindon [SWI]
3
1419
1420
1418½
1420½
1423½
1425¼
+4
UR
UM
Highworth Jn
pass
1421½
pass
1427¼
+6
Swindon Stratton Green
pass
1422
pass
1427¾
+6
Swindon South Marston Jn
pass
1422½
pass
1428¼
+5
Bourton
pass
1423½
pass
1429¾
+6
Uffington (Oxfordshire)
pass
1427
pass
1432½
+5
Challow
pass
1428½
pass
1433½
+5
Wantage Road
1
pass
1430
pass
1436
+6
Steventon
pass
1432½
pass
1437¼
+4
Milton Junction
pass
1433
pass
1438
+5
Foxhall Jn [XJF]
pass
1434
pass
1439
+5
Didcot West End
pass
1434½
No report
Didcot Parkway [DID]
2
pass
1434½
pass
1439¾
+5
Didcot East Jn
pass
1434½
pass
1440
+5
Moreton Cutting
pass
1435½
pass
1440¼
+4
Cholsey [CHO]
2
pass
1436½
pass
1441¾
+5
Goring & Streatley [GOR]
1
2
pass
1438½
pass
1443½
+5
ML
Pangbourne [PAN]
pass
1440½
pass
1445¼
+4
Tilehurst [TLH]
2
pass
1442½
pass
1446½
+3
Tilehurst East Jn.
pass
1443
pass
1446¾
+4
Reading High Level Jn
½
pass
1444
pass
1448¼
+4
ML
Reading Main Line West
pass
1445
pass
1449¼
+4
Reading [RDG]
10
1445
1448
1446
1448
1450
1452¾
+4
UM
UM
Reading Main Line East
pass
1448½
pass
1453½
+4
Kennet Bridge Jn
pass
1449
pass
1454¼
+5
Twyford West
pass
1451½
pass
1456¼
+4
Twyford [TWY]
2
pass
1452
pass
1457
+5
ML
Ruscombe
pass
1452½
pass
1457¼
+4
Maidenhead [MAI]
2
pass
1455½
pass
1500½
+5
Maidenhead East
pass
1456
pass
1500½
+4
Taplow [TAP]
2
pass
1456½
pass
1501¼
+4
Burnham [BNM]
pass
1457
pass
1501½
+4
Slough West
pass
1458
pass
1502¾
+4
Slough [SLO]
3
pass
1458½
pass
1503¼
+4
Dolphin Jn
pass
1459
pass
1503½
+4
Langley [LNY]
2
pass
1459½
pass
1504¼
+4
Iver [IVR]
2
pass
1500½
pass
1505
+4
West Drayton Jcn
pass
1501
pass
1505¼
+4
West Drayton [WDT]
2
pass
1501
pass
1505¾
+4
West Drayton East
pass
1501
pass
1505¾
+4
Stockley Junction
pass
1501½
pass
1506
+4
ML
ML
Heathrow Airport Jn
pass
1502
pass
1506¼
+4
Hayes & Harlington [HAY]
2
pass
1502
pass
1506¾
+4
Southall West Jn
pass
1502½
pass
1507
+4
Southall [STL]
2
pass
1503
pass
1507
+4
ML
Southall East Jn
pass
1503
pass
1507¼
+4
Hanwell [HAN]
1
pass
1503½
pass
1508¼
+4
West Ealing Junction
pass
1504
pass
1508¾
+4
West Ealing [WEA]
pass
1504
pass
1509
+5
Ealing Broadway [EAL]
2
pass
1504
pass
1509½
+5
Acton West
1
pass
1504½
pass
1509¾
+5
ML
ML
Acton Main Line [AML]
2
pass
1505½
pass
1510¼
+5
Friars Jn
pass
1506
No report
Old Oak Common West
pass
1506½
pass
1510¾
+4
Old Oak Common East
pass
1507
pass
1511¼
+4
Ladbroke Grove
pass
1508
pass
1512¼
+4
UM
3
Portobello Jn (London)
1½
pass
1508½
pass
1513
+4
Royal Oak Junction
pass
1511
pass
1514
+3
London Paddington [PAD]
9
1512
1512
1516
+4
3
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