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1B25 1718 London Paddington to Swansea
Departing on 17th December 2025

operated by
Great Western Railway
10 coaches
800033
800034
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
forms from 1L23 from Cardiff Central and forms from 1D29 from Oxford
8
1718
1718
1718¼
3
0.41
Royal Oak Junction
pass
1719
pass
1719½
3
2
1.28
Portobello Jn (London)
pass
1720½
pass
1720½
1.68
Ladbroke Grove
pass
1721
pass
1721¼
2
DM
2.55
Old Oak Common East
pass
1721½
pass
1722½
3.15
Old Oak Common West
pass
1722
pass
1723
+1
3.48
Friars Jn
pass
1722½
pass
1723¼
4.16
Acton Main Line [AML]
pass
1723
pass
1723¾
+1
4.75
Acton West
pass
1723½
pass
1724¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1724
pass
1724½
6.41
West Ealing [WEA]
pass
1724½
pass
1725
6.49
West Ealing Junction
pass
1724½
pass
1725
7.23
Hanwell [HAN]
pass
1724½
pass
1725¼
8.57
Southall East Jn
pass
1725½
pass
1726
9.01
Southall [STL]
1
pass
1725½
pass
1726½
+1
9.65
Southall West Jn
pass
1726
pass
1726½
10.66
Hayes & Harlington [HAY]
1
pass
1726½
pass
1727½
+1
11.09
Heathrow Airport Jn
pass
1726½
pass
1727¼
ML
12.04
Stockley Junction
pass
1727
pass
1727¾
12.62
West Drayton East
pass
1727½
pass
1728
13.12
West Drayton [WDT]
1
pass
1727½
pass
1728½
+1
13.26
West Drayton Jcn
pass
1727½
pass
1728¾
+1
14.55
Iver [IVR]
1
pass
1728
pass
1729
+1
16.13
Langley [LNY]
1
pass
1729
pass
1730¼
+1
17.13
Dolphin Jn
pass
1729½
pass
1730½
+1
18.31
Slough [SLO]
2
pass
1730
pass
1731
+1
ML
19.06
Slough West
pass
1730½
pass
1731¼
+1
20.72
Burnham [BNM]
pass
1731½
pass
1732
22.34
Taplow [TAP]
1
pass
1732
pass
1732¾
23.53
Maidenhead East
pass
1732½
pass
1733½
24.14
Maidenhead [MAI]
1
pass
1733
pass
1734
+1
29.40
Ruscombe
pass
1736
pass
1736¼
30.76
Twyford [TWY]
1
1
pass
1736½
pass
1737
ML
31.57
Twyford West
pass
1737
pass
1737¼
35.10
Kennet Bridge Jn
pass
1739½
pass
1739¾
35.56
Reading Main Line East
pass
1740
pass
1740¼
35.75
Reading [RDG]
9
1741
1743
1741
1743
1741½
1743½
DM
DM
36.12
Reading Main Line West
pass
1743½
pass
1744¼
36.45
Reading High Level Jn
pass
1744
pass
1745¼
+1
ML
38.29
Tilehurst East Jn.
pass
1745
pass
1746¼
+1
38.47
Tilehurst [TLH]
1
pass
1745
pass
1746½
+1
41.38
Pangbourne [PAN]
pass
1747
pass
1747¾
44.55
Goring & Streatley [GOR]
1
1
pass
1749
pass
1749½
ML
48.32
Cholsey [CHO]
1
pass
1751½
pass
1751¼
51.32
Moreton Cutting
pass
1753½
pass
1752½
52.61
Didcot East Jn
pass
1754½
pass
1753¼
-1
53.05
Didcot Parkway [DID]
1
1755
1756
1755
1756½
1754½
1756¼
53.20
Didcot West End
pass
1757
No report
53.50
Foxhall Jn [XJF]
pass
1757½
pass
1757¼
55.14
Milton Junction
pass
1758½
pass
1758¼
56.27
Steventon
pass
1759
pass
1759¼
60.17
Wantage Road
pass
1801½
pass
1801¾
63.75
Challow
pass
1803½
pass
1804
66.34
Uffington (Oxfordshire)
1
pass
1804½
pass
1805
72.25
Bourton
pass
1808
pass
1808
74.46
Swindon South Marston Jn
pass
1809½
pass
1809
75.58
Swindon Stratton Green
pass
1810
pass
1809¾
76.27
Highworth Jn
pass
1810½
pass
1810
76.59
Swindon East Loop
pass
1810½
pass
1811¼
77.18
Swindon [SWI]
4
1812
1813
1811½
1813½
1812½
1814
DM
DM
82.67
Wootton Bassett Jn
pass
1818
pass
1819¼
+1
DM
DB
89.57
Little Somerford
pass
1822
pass
1823½
+1
94.16
Hullavington
1
pass
1824½
pass
1826
+1
99.76
Badminton
pass
1828
pass
1828½
104.40
Chipping Sodbury
pass
1830½
pass
1831¾
+1
107.09
Westerleigh Jn
pass
1832
pass
1833¾
+1
111.57
Bristol Parkway [BPW]
1
2
1834
1837
1835
1837
1837¾
1840¾
+3
DB
DT
112.79
Patchway [PWY]
2
pass
1839½
pass
1842½
+3
116.45
Pilning [PIL]
2
pass
1842
pass
1845½
+3
118.03
Severn Tunnel East
pass
1843
pass
1846¾
+3
122.31
Severn Tunnel West
pass
1846½
pass
1850¼
+3
123.41
Severn Tunnel Junction [STJ]
3
pass
1847½
pass
1851¾
+4
DT
DM
125.66
Magor
pass
1849
pass
1853½
+4
130.72
Llanwern West Jn
pass
1852½
pass
1857¼
+4
131.63
East Usk Jn.
pass
1853
pass
1858
+4
132.55
Maindee East Jn
1
pass
1854
pass
1859¼
+5
ML
132.77
Maindee West Jn
pass
1855½
pass
1900¼
+4
133.31
Newport (South Wales) [NWP]
2
1857
1858
1856½
1858½
1901¾
1903
+4
DM
DM
134.13
Gaer Jn
pass
1900
pass
1905
+5
DM
134.68
Ebbw Jn
pass
1901
pass
1906
+5
DM
DM
138.41
Marshfield
1
pass
1903½
pass
1908¾
+5
142.42
Rumney River Bridge Jn
pass
1907
pass
1911
+4
143.01
Pengam Jn
pass
1907½
pass
1911½
+4
143.46
Moorland Road Junction
pass
1908
pass
1912
+4
144.16
Long Dyke Jn
pass
1908½
pass
1913¼
+4
E
144.79
Cardiff East
pass
1910
pass
1914½
+4
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1910
1918
1911
1918
1916¼
1918¼
E
D
145.37
Cardiff West
pass
1919
No report
146.36
Leckwith North Jn
pass
1921
pass
1921¾
D
DM
149.14
St Fagans L C
pass
1923
pass
1924¼
+1
154.08
Miskin
pass
1927
pass
1928¼
+1
156.21
Pontyclun [PYC]
7
1
pass
1929
pass
1930¼
+1
156.57
Llantrisant [LTI]
pass
1929½
No report
158.53
Llanharan [LLR]
2
pass
1932½
pass
1933¾
+1
161.41
Pencoed [PCD]
1
pass
1937
pass
1937¾
164.42
Tremains
pass
1942
pass
1944¾
+3
165.26
Bridgend [BGN]
1
1944
1945
1943½
1945
1946½
1947¾
+2
DM
DM
169.46
Stormy
pass
1949½
pass
1952¼
+2
171.21
Pyle [PYL]
1
pass
1950½
pass
1953½
+3
173.45
Margam Moors Jn.
pass
1952
pass
1954½
+2
DM
175.12
Margam East Jn
pass
1953
pass
1956
+3
176.00
Margam Middle Jn
pass
1953½
pass
1956¼
+2
176.70
Port Talbot East
pass
1954½
No report
177.39
Port Talbot Parkway [PTA]
1
1956
1957
1955½
1957
1958¼
1959¾
+2
179.38
Baglan [BAJ]
1
pass
1959
pass
2002½
+3
180.09
Briton Ferry East
pass
2000
pass
2002¾
+3
181.20
Briton Ferry [BNF]
1
pass
2001
pass
2004
+3
181.38
Court Sart Jn
pass
2001
pass
2003¾
+2
183.00
Neath [NTH]
1
1
2003
2004
2003
2004½
2005¾
2007¼
+2
185.06
Skewen [SKE]
1
pass
2007½
pass
2010¼
+2
186.68
Llansamlet [LAS]
1
pass
2010
pass
2012
+2
189.42
Landore Junction
pass
2013
pass
2015
+2
DM
DSM
190.23
Swansea Loop East
pass
2014
pass
2016½
+2
190.67
Swansea [SWA]
1
2016
2016
2018½
+2
DSM
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