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1B25 1718 London Paddington to Swansea
Departing on 10th December 2025

operated by
Great Western Railway
10 coaches
800017
800015
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 1P33 from Oxford
10
1718
1718
1717¾
3
0.41
Royal Oak Junction
pass
1719
pass
1719½
3
2
1.28
Portobello Jn (London)
pass
1720½
pass
1720¾
1.68
Ladbroke Grove
pass
1721
pass
1721½
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
1724¾
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
1725½
8.57
Southall East Jn
pass
1725½
pass
1726¼
+1
9.01
Southall [STL]
1
pass
1725½
pass
1726¾
+1
9.65
Southall West Jn
pass
1726
pass
1726¾
10.66
Hayes & Harlington [HAY]
1
pass
1726½
pass
1727½
+1
11.09
Heathrow Airport Jn
pass
1726½
pass
1727½
+1
ML
12.04
Stockley Junction
pass
1727
pass
1727¾
12.62
West Drayton East
pass
1727½
pass
1728¼
+1
13.12
West Drayton [WDT]
1
pass
1727½
pass
1728¾
+1
13.26
West Drayton Jcn
pass
1727½
pass
1728¾
+1
14.55
Iver [IVR]
1
pass
1728
pass
1729¼
+1
16.13
Langley [LNY]
1
pass
1729
pass
1730¼
+1
17.13
Dolphin Jn
pass
1729½
pass
1730¾
+1
18.31
Slough [SLO]
2
pass
1730
pass
1731¼
+1
ML
19.06
Slough West
pass
1730½
pass
1731½
+1
20.72
Burnham [BNM]
pass
1731½
pass
1732¼
+1
22.34
Taplow [TAP]
1
pass
1732
pass
1733
+1
23.53
Maidenhead East
pass
1732½
pass
1734
+1
24.14
Maidenhead [MAI]
1
pass
1733
pass
1734¼
+1
29.40
Ruscombe
pass
1736
pass
1736½
30.76
Twyford [TWY]
1
1
pass
1736½
pass
1737¼
ML
31.57
Twyford West
pass
1737
pass
1737¾
35.10
Kennet Bridge Jn
pass
1739½
pass
1740½
+1
35.56
Reading Main Line East
pass
1740
pass
1741½
+1
35.75
Reading [RDG]
9
1741
1743
1741
1743
1742¾
1744½
+1
DM
DM
36.12
Reading Main Line West
pass
1743½
pass
1745¼
+1
36.45
Reading High Level Jn
pass
1744
pass
1746¼
+2
ML
38.29
Tilehurst East Jn.
pass
1745
pass
1747¼
+2
38.47
Tilehurst [TLH]
1
pass
1745
pass
1747¼
+2
41.38
Pangbourne [PAN]
pass
1747
pass
1748¾
+1
44.55
Goring & Streatley [GOR]
1
1
pass
1749
pass
1750½
+1
ML
48.32
Cholsey [CHO]
1
pass
1751½
pass
1752¼
51.32
Moreton Cutting
pass
1753½
pass
1753¾
52.61
Didcot East Jn
pass
1754½
pass
1754½
53.05
Didcot Parkway [DID]
1
1755
1756
1755
1756½
1756¼
1758½
+2
53.20
Didcot West End
pass
1757
No report
53.50
Foxhall Jn [XJF]
pass
1757½
pass
1759½
+2
55.14
Milton Junction
pass
1758½
pass
1800½
+2
56.27
Steventon
pass
1759
pass
1801½
+2
60.17
Wantage Road
pass
1801½
pass
1804
+2
63.75
Challow
pass
1803½
pass
1806¼
+2
66.34
Uffington (Oxfordshire)
1
pass
1804½
pass
1807¼
+2
72.25
Bourton
pass
1808
pass
1810¼
+2
74.46
Swindon South Marston Jn
pass
1809½
pass
1811½
+2
75.58
Swindon Stratton Green
pass
1810
pass
1812½
+2
76.27
Highworth Jn
pass
1810½
pass
1812¾
+2
76.59
Swindon East Loop
pass
1810½
pass
1814
+3
77.18
Swindon [SWI]
4
1812
1813
1811½
1813½
1815¼
1817
+3
DM
DM
82.67
Wootton Bassett Jn
pass
1818
pass
1821½
+3
DM
DB
89.57
Little Somerford
pass
1822
pass
1826
+4
94.16
Hullavington
1
pass
1824½
pass
1828½
+4
99.76
Badminton
pass
1828
pass
1831
+3
104.40
Chipping Sodbury
pass
1830½
pass
1833¾
+3
107.09
Westerleigh Jn
pass
1832
pass
1835¾
+3
111.57
Bristol Parkway [BPW]
2
1834
1837
1835
1837
1839¾
1842
+5
DB
DT
112.79
Patchway [PWY]
2
pass
1838½
pass
1844¼
+5
116.45
Pilning [PIL]
2
pass
1841
pass
1847½
+6
118.03
Severn Tunnel East
pass
1842
pass
1848½
+6
122.31
Severn Tunnel West
pass
1845½
pass
1851¾
+6
123.41
Severn Tunnel Junction [STJ]
3
pass
1846½
pass
1853¼
+6
DT
DM
125.66
Magor
pass
1848
pass
1854¾
+6
130.72
Llanwern West Jn
2
pass
1851½
pass
1858½
+7
131.63
East Usk Jn.
pass
1853
pass
1859¼
+6
132.55
Maindee East Jn
pass
1855
pass
1900½
+5
132.77
Maindee West Jn
pass
1855½
pass
1901¼
+5
133.31
Newport (South Wales) [NWP]
2
1857
1858
1856½
1858½
1902¾
1904¼
+5
DM
DM
134.13
Gaer Jn
pass
1900
pass
1906
+6
DM
134.68
Ebbw Jn
pass
1901
pass
1907
+6
DM
DM
138.41
Marshfield
1
pass
1903½
pass
1910
+6
142.42
Rumney River Bridge Jn
pass
1907
pass
1912½
+5
143.01
Pengam Jn
pass
1907½
pass
1913
+5
143.46
Moorland Road Junction
pass
1908
pass
1913¾
+5
144.16
Long Dyke Jn
pass
1908½
pass
1915
+6
E
144.79
Cardiff East
pass
1910
pass
1916¼
+6
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1910
1918
1910½
1918
1918
1922¾
+4
E
D
145.37
Cardiff West
pass
1919
No report
146.36
Leckwith North Jn
pass
1921
pass
1926
+5
D
DM
149.14
St Fagans L C
pass
1923
pass
1928½
+5
154.08
Miskin
pass
1927
pass
1932½
+5
156.21
Pontyclun [PYC]
5½
1
pass
1929
pass
1934½
+5
156.57
Llantrisant [LTI]
pass
1929½
No report
158.53
Llanharan [LLR]
2
pass
1932½
pass
1936¾
+4
161.41
Pencoed [PCD]
1
pass
1936
pass
1938¾
+2
164.42
Tremains
pass
1940½
pass
1941½
+1
165.26
Bridgend [BGN]
1
1942
1943
1942
1943½
1943½
1945¼
+1
DM
DM
169.46
Stormy
pass
1948
pass
1950¾
+2
171.21
Pyle [PYL]
1
pass
1949
pass
1952¼
+3
173.45
Margam Moors Jn.
pass
1950½
pass
1953¼
+2
DM
175.12
Margam East Jn
pass
1951½
pass
1954¾
+3
176.00
Margam Middle Jn
pass
1952
pass
1955
+2
176.70
Port Talbot East
pass
1953
No report
177.39
Port Talbot Parkway [PTA]
1
1954
1955
1954
1955½
1957¼
1958¾
+3
179.38
Baglan [BAJ]
1
pass
1957½
pass
2001¾
+4
180.09
Briton Ferry East
pass
1958½
pass
2002¼
+3
181.20
Briton Ferry [BNF]
1
pass
1959½
pass
2003½
+4
181.38
Court Sart Jn
pass
1959½
pass
2003½
+4
183.00
Neath [NTH]
1
1
2002
2003
2001½
2003
2005¾
2008
+5
185.06
Skewen [SKE]
1
pass
2006
pass
2011¼
+5
186.68
Llansamlet [LAS]
1
pass
2008½
pass
2013½
+5
189.42
Landore Junction
pass
2011½
pass
2016¾
+5
DM
DSM
190.23
Swansea Loop East
pass
2012½
pass
2018½
+6
190.67
Swansea [SWA]
3
2014
2014
2021
+7
DSM
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