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1B21 1431 London Paddington to Swansea
Departing on 3rd January 2026

operated by
Great Western Railway

This service is cancelled.

This service was cancelled due to unknown cause (ZW).

GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
London Paddington [PAD]
1431
1431
-
0.41
Royal Oak Junction
pass
1432
-
1.28
Portobello Jn (London)
pass
1433
-
1.68
Ladbroke Grove
pass
1434
-
2.55
Old Oak Common East
pass
1434½
-
3.15
Old Oak Common West
pass
1435
-
3.48
Friars Jn
pass
1435½
-
4.16
Acton Main Line [AML]
pass
1436
-
4.75
Acton West
pass
1436½
-
5.51
Ealing Broadway [EAL]
pass
1437
-
6.41
West Ealing [WEA]
pass
1437½
-
6.49
West Ealing Junction
pass
1437½
-
7.23
Hanwell [HAN]
pass
1437½
-
8.57
Southall East Jn
pass
1438½
-
9.01
Southall [STL]
pass
1438½
-
9.65
Southall West Jn
pass
1439
-
10.66
Hayes & Harlington [HAY]
pass
1439½
-
11.09
Heathrow Airport Jn
pass
1439½
-
12.04
Stockley Junction
2
pass
1440½
-
12.62
West Drayton East
pass
1441½
-
13.12
West Drayton [WDT]
pass
1442
-
13.26
West Drayton Jcn
pass
1442
-
14.55
Iver [IVR]
pass
1443½
-
16.13
Langley [LNY]
pass
1445½
-
17.13
Dolphin Jn
pass
1446½
-
18.31
Slough [SLO]
pass
1448
-
19.06
Slough West
pass
1449
-
20.72
Burnham [BNM]
pass
1450½
-
22.34
Taplow [TAP]
pass
1452
-
23.53
Maidenhead East
pass
1453
-
24.14
Maidenhead [MAI]
pass
1453½
-
29.40
Ruscombe
pass
1456½
-
30.76
Twyford [TWY]
1
pass
1457
-
31.57
Twyford West
pass
1457½
-
35.10
Kennet Bridge Jn
pass
1500
-
35.56
Reading Main Line East
pass
1500½
-
35.75
Reading [RDG]
1502
1503
1501½
1503½
-
36.12
Reading Main Line West
pass
1504½
-
36.61
Oxford Road Jn
pass
1505½
-
36.70
Reading West [RDW]
pass
1505½
-
37.57
Southcote Jn
pass
1506½
-
41.17
Theale [THE]
pass
1509½
-
44.58
Aldermaston [AMT]
pass
1511½
-
46.54
Midgham [MDG]
pass
1512½
-
49.40
Thatcham [THA]
pass
1514½
-
52.26
Newbury Racecourse [NRC]
pass
1516
-
53.01
Newbury [NBY]
1½
Pathed as Class 80x on diesel from here
pass
1516½
-
58.33
Kintbury [KIT]
pass
1521
-
61.38
Hungerford [HGD]
pass
1523
-
66.28
Bedwyn [BDW]
pass
1527
-
70.02
Savernake
pass
1529½
-
75.21
Pewsey [PEW]
1½
pass
1533½
-
78.68
Woodborough
½
pass
1537½
-
88.01
Lavington
1 5
pass
1542½
-
94.40
Heywood Road Jn
pass
1553
-
95.27
Hawkeridge Jn
pass
1555½
-
98.60
Trowbridge [TRO]
pass
1600½
-
100.01
Bradford Jn
1
pass
1602½
-
102.04
Bradford-on-Avon [BOA]
pass
1605
-
103.30
Avoncliff [AVF]
pass
1607
-
104.23
Freshford [FFD]
pass
1608
-
109.18
Bathampton Jn
pass
1614½
-
111.39
Bath Spa [BTH]
1 3½
1618
1620
1618
1620
-
112.40
Oldfield Park [OLF]
pass
1621½
-
113.40
Twerton
pass
1623
-
118.31
Keynsham [KYN]
pass
1628½
-
122.14
North Somerset Jn
pass
1633
-
122.48
Bristol East Jn
pass
1633½
-
122.78
Bristol Temple Meads [BRI]
Service reverses here
1635
1647
1635
1647
-
123.28
Bristol East Jn
pass
1648
-
123.52
Dr Day's Jn
pass
1649
-
124.01
Lawrence Hill [LWH]
pass
1649½
-
124.47
Stapleton Road [SRD]
pass
1650
-
125.00
Narroways Hill Jn
pass
1650½
-
126.57
Horfield Junction
pass
1652
-
127.27
Filton Abbey Wood [FIT]
1
pass
1653
-
127.47
Filton Jn
pass
1653½
-
128.66
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
Service reverses here
1657
1704
1656½
1704½
-
130.08
Patchway [PWY]
pass
1706
-
133.54
Pilning [PIL]
pass
1708½
-
135.12
Severn Tunnel East
pass
1709½
-
139.40
Severn Tunnel West
pass
1713
-
140.50
Severn Tunnel Junction [STJ]
pass
1714
-
142.75
Magor
pass
1715½
-
148.01
Llanwern West Jn
pass
1719
-
148.72
East Usk Jn.
pass
1719½
-
149.64
Maindee East Jn
pass
1720½
-
150.06
Maindee West Jn
pass
1721
-
150.40
Newport (South Wales) [NWP]
1722
1724
1722
1724
-
151.22
Gaer Jn
pass
1725½
-
151.77
Ebbw Jn
pass
1726½
-
155.50
Marshfield
pass
1729
-
159.51
Rumney River Bridge Jn
pass
1732
-
160.10
Pengam Jn
pass
1732
-
160.55
Moorland Road Junction
1
pass
1732½
-
161.25
Long Dyke Jn
pass
1734
-
162.08
Cardiff East
pass
1735½
-
162.20
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
1737
1739
1736½
1739
-
162.46
Cardiff West
pass
1740
-
163.45
Leckwith North Jn
pass
1742
-
166.23
St Fagans L C
pass
1744
-
171.17
Miskin
pass
1748
-
173.30
Pontyclun [PYC]
pass
1750
-
173.66
Llantrisant [LTI]
pass
1750½
-
175.62
Llanharan [LLR]
pass
1752
-
178.50
Pencoed [PCD]
pass
1754
-
181.51
Tremains
pass
1756½
-
182.35
Bridgend [BGN]
1758
1759
1757½
1759
-
186.55
Stormy
pass
1803½
-
188.30
Pyle [PYL]
pass
1804½
-
190.54
Margam Moors Jn.
pass
1806
-
192.21
Margam East Jn
pass
1807
-
193.09
Margam Middle Jn
pass
1807½
-
193.79
Port Talbot East
pass
1808½
-
194.48
Port Talbot Parkway [PTA]
1810
1811
1809½
1811
-
196.47
Baglan [BAJ]
pass
1813
-
197.18
Briton Ferry East
pass
1814
-
198.29
Briton Ferry [BNF]
pass
1815
-
198.47
Court Sart Jn
pass
1815
-
200.09
Neath [NTH]
1
1817
1818
1817
1818½
-
202.15
Skewen [SKE]
pass
1821½
-
203.77
Llansamlet [LAS]
pass
1824
-
206.51
Landore Junction
pass
1827
-
207.32
Swansea Loop East
pass
1828
-
207.76
Swansea [SWA]
1830
1830
-
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