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1B17 1235 London Paddington to Swansea
Departing on 10th January 2026

operated by
Great Western Railway
9 coaches
London Paddington - Bristol Temple Meads
802113
9 coaches
Bristol Temple Meads - Bristol Parkway
802113
9 coaches
Bristol Parkway - Swansea
802113
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
1235
1235
1235
D3
0.41
Royal Oak Junction
pass
1236
pass
1236¼
3
2
1.28
Portobello Jn (London)
pass
1237½
pass
1237½
1.68
Ladbroke Grove
pass
1238
pass
1238¼
2
DM
2.55
Old Oak Common East
pass
1238½
pass
1239½
3.15
Old Oak Common West
pass
1239
pass
1240
3.48
Friars Jn
pass
1239½
pass
1240¼
4.16
Acton Main Line [AML]
pass
1240
pass
1240¾
4.75
Acton West
pass
1240½
pass
1241¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1241
pass
1241½
6.41
West Ealing [WEA]
pass
1241½
pass
1242
6.49
West Ealing Junction
pass
1241½
pass
1242
7.23
Hanwell [HAN]
pass
1241½
pass
1242¼
8.57
Southall East Jn
pass
1242½
pass
1243
9.01
Southall [STL]
1
pass
1242½
pass
1243½
+1
9.65
Southall West Jn
pass
1243
pass
1243½
10.66
Hayes & Harlington [HAY]
1
pass
1243½
pass
1244¼
+1
11.09
Heathrow Airport Jn
pass
1243½
pass
1244¼
ML
12.04
Stockley Junction
pass
1244
pass
1244½
12.62
West Drayton East
pass
1244½
pass
1245
13.12
West Drayton [WDT]
1
pass
1244½
pass
1245½
+1
13.26
West Drayton Jcn
pass
1244½
pass
1245½
+1
14.55
Iver [IVR]
1
pass
1245
pass
1246
16.13
Langley [LNY]
1
pass
1246
pass
1247
+1
17.13
Dolphin Jn
pass
1246½
pass
1247½
+1
18.31
Slough [SLO]
2
pass
1247
pass
1248¼
+1
ML
19.06
Slough West
pass
1247½
pass
1248¾
+1
20.72
Burnham [BNM]
pass
1248½
pass
1249¾
+1
22.34
Taplow [TAP]
1
pass
1249
pass
1250½
+1
23.53
Maidenhead East
pass
1249½
pass
1251½
+1
24.14
Maidenhead [MAI]
1
pass
1250
pass
1251¾
+1
29.40
Ruscombe
pass
1253
pass
1254
+1
30.76
Twyford [TWY]
1
1
pass
1253½
pass
1254¾
+1
ML
31.57
Twyford West
pass
1254
pass
1255
+1
35.10
Kennet Bridge Jn
pass
1256½
pass
1257½
+1
35.56
Reading Main Line East
pass
1257
pass
1258
+1
35.75
Reading [RDG]
½
7
1258
1301
1258
1301
1259¼
1301½
DM
DW
36.12
Reading Main Line West
pass
1302
pass
1302¼
36.61
Oxford Road Jn
2
pass
1303½
pass
1303¾
36.70
Reading West [RDW]
1
pass
1304
pass
1303¾
37.57
Southcote Jn
pass
1306½
pass
1305
-1
41.17
Theale [THE]
3½
2
pass
1309½
pass
1307½
-1
44.58
Aldermaston [AMT]
2
pass
1312½
pass
1310
-2
46.54
Midgham [MDG]
1
pass
1314½
pass
1310¼
-3
49.40
Thatcham [THA]
1
pass
1317
pass
1313¼
-3
52.26
Newbury Racecourse [NRC]
1
pass
1319½
pass
1316
-3
53.01
Newbury [NBY]
4½
Pathed as Class 80x on diesel from here
pass
1320
pass
1317
-2
58.33
Kintbury [KIT]
1
pass
1325½
pass
1324¼
61.38
Hungerford [HGD]
2
pass
1328½
pass
1330
+1
66.28
Bedwyn [BDW]
2½
1
pass
1333½
pass
1336¾
+3
70.02
Savernake
pass
1337
pass
1338¾
+1
75.21
Pewsey [PEW]
1
1
pass
1342½
pass
1344½
+2
78.68
Woodborough
½
pass
1346
pass
1349¼
+3
88.01
Lavington
1
pass
1351
pass
1354¾
+3
94.40
Heywood Road Jn
3½
pass
1356½
pass
1402½
+6
DW
DWL
95.27
Hawkeridge Jn
pass
1402½
pass
1405¼
+2
DWL
DT
98.60
Trowbridge [TRO]
1
pass
1407
pass
1409¾
+2
100.01
Bradford Jn
1
pass
1409
pass
1411¼
+2
102.04
Bradford-on-Avon [BOA]
1
pass
1411½
pass
1414¾
+3
103.30
Avoncliff [AVF]
1
pass
1413½
pass
1416¼
+2
104.23
Freshford [FFD]
1
pass
1414½
pass
1416½
+2
109.18
Bathampton Jn
pass
1421
pass
1422¼
+1
DT
DM
111.39
Bath Spa [BTH]
1
1
1425
1426
1424½
1426½
1425¾
1427¾
+1
112.40
Oldfield Park [OLF]
1
pass
1428
pass
1429¼
+1
113.40
Twerton
pass
1428½
pass
1430¼
+1
118.31
Keynsham [KYN]
1
pass
1433
pass
1433¾
+1
122.14
North Somerset Jn
pass
1436
pass
1441¾
+5
122.48
Bristol East Jn
pass
1436½
pass
1443¼
+6
DM
DF
122.78
Bristol Temple Meads [BRI]
Service reverses here
10
1438
1446
1438
1446
1444¾
1450
+4
DF
UF
123.28
Bristol East Jn
pass
1447
pass
1451
+4
UF
UFM
123.52
Dr Day's Jn
pass
1448
pass
1451½
+3
ML
124.01
Lawrence Hill [LWH]
pass
1448½
pass
1452
+3
124.47
Stapleton Road [SRD]
pass
1449
pass
1452¾
+3
125.00
Narroways Hill Jn
pass
1449½
pass
1453
+3
126.57
Horfield Junction
pass
1451
pass
1454¾
+3
127.27
Filton Abbey Wood [FIT]
1
2
pass
1452
pass
1455½
+3
UFM
UD
127.47
Filton Jn
pass
1452½
No report
128.66
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
Service reverses here
2
1456
1503
1455½
1503½
1459
1504½
+1
DT
130.08
Patchway [PWY]
2
pass
1505
pass
1506
+1
133.54
Pilning [PIL]
2
pass
1507½
pass
1509
+1
135.12
Severn Tunnel East
pass
1508½
pass
1510
+1
139.40
Severn Tunnel West
pass
1512
pass
1513¼
+1
140.50
Severn Tunnel Junction [STJ]
3
pass
1513
pass
1514½
+1
DT
DM
142.75
Magor
pass
1514½
pass
1516
+1
148.01
Llanwern West Jn
pass
1518
pass
1519½
+1
148.72
East Usk Jn.
pass
1518½
pass
1520¼
+1
149.64
Maindee East Jn
pass
1519½
pass
1521
+1
ML
150.06
Maindee West Jn
pass
1520
pass
1521¾
+1
150.40
Newport (South Wales) [NWP]
2
1521
1523
1521
1523
1523
1524¼
+1
DM
DM
151.22
Gaer Jn
pass
1524½
pass
1526¼
+1
DM
151.77
Ebbw Jn
pass
1525½
pass
1527
+1
DM
DM
155.50
Marshfield
pass
1528
pass
1529½
+1
159.51
Rumney River Bridge Jn
pass
1531
pass
1532
+1
160.10
Pengam Jn
pass
1531
pass
1532½
+1
160.55
Moorland Road Junction
1
pass
1531½
pass
1533
+1
DM
DR
161.25
Long Dyke Jn
pass
1533
pass
1533¾
E
162.08
Cardiff East
pass
1534½
pass
1534¾
DR
E
162.20
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1536
1537
1535½
1537½
1536
1538¼
E
D
162.46
Cardiff West
pass
1538½
No report
163.45
Leckwith North Jn
pass
1540½
pass
1541
D
DM
166.23
St Fagans L C
pass
1542½
pass
1543¼
171.17
Miskin
pass
1546½
pass
1547¼
173.30
Pontyclun [PYC]
1
pass
1548½
pass
1549¼
173.66
Llantrisant [LTI]
pass
1549
No report
175.62
Llanharan [LLR]
2
pass
1550½
pass
1551½
+1
178.50
Pencoed [PCD]
1
pass
1552½
pass
1553¼
181.51
Tremains
pass
1555
pass
1555¼
182.35
Bridgend [BGN]
1
1556
1557
1556
1557½
1556¾
1558
DM
DM
186.55
Stormy
pass
1602
pass
1603
+1
188.30
Pyle [PYL]
1
pass
1603
pass
1604¼
+1
190.54
Margam Moors Jn.
pass
1604½
pass
1605½
+1
DM
192.21
Margam East Jn
pass
1605½
pass
1606¾
+1
193.09
Margam Middle Jn
pass
1606
pass
1607
193.79
Port Talbot East
pass
1607
No report
194.48
Port Talbot Parkway [PTA]
1
1608
1609
1608
1609½
1609
1609¾
196.47
Baglan [BAJ]
1
pass
1611½
pass
1612¾
+1
197.18
Briton Ferry East
pass
1612½
pass
1613
198.29
Briton Ferry [BNF]
1
pass
1613½
pass
1614¼
198.47
Court Sart Jn
pass
1613½
pass
1614
200.09
Neath [NTH]
1
1
1616
1617
1615½
1617
1615¾
1617¼
202.15
Skewen [SKE]
1
pass
1620
pass
1620½
203.77
Llansamlet [LAS]
1
pass
1622½
pass
1622½
206.51
Landore Junction
pass
1625½
pass
1625
DM
DSM
207.32
Swansea Loop East
pass
1626½
pass
1626½
207.76
Swansea [SWA]
3
1628
1628
1628¼
DSM
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