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1B51 1545 London Paddington to Swansea
Departing on 28th December 2025

operated by
Great Western Railway
GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
London Paddington [PAD]
4
1545
1545
1545
2
0.41
Royal Oak Junction
pass
1546
pass
1546
2
1.28
Portobello Jn (London)
pass
1547½
pass
1547
2
1.68
Ladbroke Grove
pass
1548
pass
1548
2
ML
2.55
Old Oak Common East
pass
1548½
pass
1548
3.15
Old Oak Common West
pass
1549
pass
1549
3.48
Friars Jn
pass
1549½
pass
1549
4.16
Acton Main Line [AML]
pass
1550
pass
1549
4.75
Acton West
pass
1550½
pass
1550
ML
ML
5.51
Ealing Broadway [EAL]
pass
1551
pass
1550
6.41
West Ealing [WEA]
pass
1551½
pass
1551
6.49
West Ealing Junction
pass
1551½
pass
1551
7.23
Hanwell [HAN]
pass
1551½
pass
1551
8.57
Southall East Jn
pass
1552½
pass
1552
9.01
Southall [STL]
1
pass
1552½
pass
1552
ML
9.65
Southall West Jn
pass
1553
pass
1552
10.66
Hayes & Harlington [HAY]
pass
1553½
pass
1553
11.09
Heathrow Airport Jn
pass
1553½
pass
1553
ML
12.04
Stockley Junction
pass
1554
pass
1553
12.62
West Drayton East
pass
1554½
pass
1554
13.12
West Drayton [WDT]
pass
1554½
pass
1554
13.26
West Drayton Jcn
pass
1554½
pass
1554
14.55
Iver [IVR]
pass
1555
pass
1555
16.13
Langley [LNY]
pass
1556
pass
1555
17.13
Dolphin Jn
pass
1556½
pass
1556
18.31
Slough [SLO]
2
pass
1557
pass
1557
ML
19.06
Slough West
pass
1557½
pass
1557
20.72
Burnham [BNM]
pass
1558½
pass
1558
22.34
Taplow [TAP]
pass
1559
pass
1559
23.53
Maidenhead East
pass
1559½
pass
1559
24.14
Maidenhead [MAI]
1
pass
1600
pass
1600
ML
29.40
Ruscombe
pass
1603
pass
1602
30.76
Twyford [TWY]
1
1
pass
1603½
pass
1603
ML
31.57
Twyford West
pass
1604
pass
1603
35.10
Kennet Bridge Jn
pass
1606½
pass
1606
DML
35.56
Reading Main Line East
pass
1607
pass
1607
35.75
Reading [RDG]
9
1608
1610
1608
1610
1607
1610
ML
36.12
Reading Main Line West
pass
1610½
pass
1610
36.45
Reading High Level Jn
pass
1611
pass
1611
ML
38.29
Tilehurst East Jn.
pass
1612
pass
1612
38.47
Tilehurst [TLH]
pass
1612
pass
1612
41.38
Pangbourne [PAN]
pass
1614
pass
1614
44.55
Goring & Streatley [GOR]
1
pass
1616
pass
1616
ML
48.32
Cholsey [CHO]
pass
1618
pass
1618
51.32
Moreton Cutting
pass
1620
pass
1619
52.61
Didcot East Jn
pass
1621
pass
1620
53.05
Didcot Parkway [DID]
1
pass
1621
pass
1620
53.20
Didcot West End
pass
1621
pass
1620
53.50
Foxhall Jn [XJF]
pass
1621½
pass
1621
55.14
Milton Junction
pass
1622
pass
1622
56.27
Steventon
pass
1623
pass
1622
60.17
Wantage Road
pass
1625
pass
1624
63.75
Challow
pass
1627
pass
1626
66.34
Uffington (Oxfordshire)
1
pass
1628
pass
1627
72.25
Bourton
pass
1631½
pass
1631
74.46
Swindon South Marston Jn
pass
1633
pass
1632
75.58
Swindon Stratton Green
pass
1633½
pass
1633
76.27
Highworth Jn
pass
1634
pass
1633
76.59
Swindon East Loop
pass
1634
pass
1633
77.18
Swindon [SWI]
4
1635
1638
1635
1638
1634
1638
78.31
Rushey Platt
pass
1639½
pass
1639
82.67
Wootton Bassett Jn
pass
1642½
pass
1642
89.57
Little Somerford
pass
1646½
pass
1646
94.16
Hullavington
1
pass
1649
pass
1649
99.76
Badminton
pass
1652½
pass
1652
104.40
Chipping Sodbury
pass
1655
pass
1654
107.09
Westerleigh Jn
1
pass
1656½
pass
1656
111.57
Bristol Parkway [BPW]
2
1700
1701
1700½
1702
1700
1701
112.79
Patchway [PWY]
2
pass
1703½
pass
1703
116.45
Pilning [PIL]
1
2
pass
1706
pass
1705
118.03
Severn Tunnel East
1
pass
1708
pass
1708
122.31
Severn Tunnel West
3
pass
1712½
pass
1712
123.41
Severn Tunnel Junction [STJ]
1½
3
pass
1716½
pass
1716
ML
125.66
Magor
pass
1718½
pass
1718
130.72
Llanwern West Jn
pass
1723
pass
1723
131.63
East Usk Jn.
pass
1723½
pass
1723
132.55
Maindee East Jn
pass
1724½
pass
1724
ML
132.77
Maindee West Jn
½
pass
1725
pass
1725
133.31
Newport (South Wales) [NWP]
Pathed as Class 80x on diesel from here
2
1727
1728
1726½
1728
1726
1728
DM
134.13
Gaer Jn
pass
1729½
pass
1729
ML
134.68
Ebbw Jn
4
pass
1730½
pass
1730
138.41
Marshfield
1
pass
1737
pass
1736
142.42
Rumney River Bridge Jn
pass
1740½
pass
1739
143.01
Pengam Jn
pass
1741
pass
1740
143.46
Moorland Road Junction
pass
1741½
pass
1740
144.16
Long Dyke Jn
pass
1742
pass
1741
E
144.79
Cardiff East
pass
1743½
pass
1743
145.11
Cardiff Central [CDF]
4
1744
1747
1744½
1747
1743
1747
145.37
Cardiff West
pass
1748½
pass
1748
145.52
Cardiff Radyr Branch Jn
pass
1749
pass
1749
145.74
Penarth Curve North Jn
4
pass
1750
pass
1750
146.10
Ninian Park [NNP]
1
pass
1755
pass
1755
146.16
Leckwith South Jn
pass
1755½
pass
1755
146.29
Leckwith Loop
pass
1756
pass
1755
146.42
Leckwith North Jn
pass
1756½
pass
1756
149.20
St Fagans L C
pass
1758½
pass
1758
154.14
Miskin
pass
1802½
pass
1802
156.27
Pontyclun [PYC]
pass
1804½
pass
1804
156.63
Llantrisant [LTI]
pass
1805
pass
1804
158.59
Llanharan [LLR]
pass
1806½
pass
1806
161.47
Pencoed [PCD]
pass
1808½
pass
1808
164.48
Tremains
pass
1811
pass
1810
165.32
Bridgend [BGN]
1
1812
1813
1812
1813½
1812
1813
169.52
Stormy
pass
1818
pass
1817
171.27
Pyle [PYL]
pass
1819
pass
1818
173.51
Margam Moors Jn.
pass
1820½
pass
1820
175.18
Margam East Jn
pass
1821½
pass
1821
176.06
Margam Middle Jn
pass
1822
pass
1821
176.76
Port Talbot East
pass
1823
pass
1822
177.45
Port Talbot Parkway [PTA]
1
1824
1825
1824
1825½
1823
1825
179.44
Baglan [BAJ]
pass
1827½
pass
1827
180.15
Briton Ferry East
pass
1828½
pass
1827
181.26
Briton Ferry [BNF]
pass
1829½
pass
1828
181.44
Court Sart Jn
pass
1829½
pass
1829
183.06
Neath [NTH]
1
1832
1833
1831½
1833
1831
1833
185.12
Skewen [SKE]
pass
1836
pass
1835
186.74
Llansamlet [LAS]
pass
1838½
pass
1838
189.48
Landore Junction
pass
1841½
pass
1841
190.29
Swansea Loop East
pass
1842½
pass
1842
190.73
Swansea [SWA]
2
1844
1844
1843
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