WTT

1829½

1830¼

London Paddington

B

3Y09

XR

Terminates here

WTT

pass

Heathrow Airport Terminal 4

A

9U01

XR

Abbey Wood

1830½

1831

WTT

pass

Abbey Wood

B

9N10

XR

Maidenhead

1831½

1831

WTT

Starts here

C

3W02

XR

London Paddington

1833

1833

WTT

pass

Shenfield

B

9T11

XR

Heathrow Airport Terminal 5

1835

1834½

WTT

pass

Reading

A

9U03

XR

Abbey Wood

1836½

1837

WTT

pass

Abbey Wood

B

9H12

XR

Heathrow Airport Terminal 4

1838

1837½

WTT

Starts here

A

3W04

XR

London Paddington

1839

1839

WTT

1841

1841½

London Paddington

A

3Y13

XR

Terminates here

WTT

pass

Old Oak Depot

A

5U05

XR

London Paddington

1842½

1843½

WTT

pass

Abbey Wood

B

9R14

XR

Reading

1844

1843

WTT

Starts here

B

3W08

XR

London Paddington

1845

1845

WTT

1847

1847¼

London Paddington

B

3Y15

XR

Terminates here

WTT

pass

Heathrow Airport Terminal 4

A

9U09

XR

Abbey Wood

1848

1849

WTT

pass

Abbey Wood

B

9R16

XR

Reading

1849½

1849

WTT

pass

Heathrow Airport Terminal 5

A

9W10

XR

Shenfield

1851

1852

WTT

1853

1853

London Paddington

C

3Y17

XR

Terminates here

WTT

pass

Reading

A

9U11

XR

Abbey Wood

1854

1854½

WTT

pass

Abbey Wood

B

9H18

XR

Heathrow Airport Terminal 4

1855½

1855

WTT

Starts here

A

3W12

XR

London Paddington

1857

1857

WTT

1859

1859¼

London Paddington

A

3Y19

XR

Terminates here

WTT

pass

Heathrow Airport Terminal 4

A

9U13

XR

Abbey Wood

1900½

1901

WTT

pass

Abbey Wood

B

9N20

XR

Maidenhead

1902

1901

WTT

Starts here

B

3W14

XR

London Paddington

1903

1903

WTT

pass

Shenfield

B

9T21

XR

Heathrow Airport Terminal 5

1905

1904

WTT

pass

Reading

A

9U15

XR

Abbey Wood

1906½

1907

WTT

pass

Abbey Wood

B

9H22

XR

Heathrow Airport Terminal 4

1907½

1907

WTT

Starts here

C

3W16

XR

London Paddington

1909

1909

WTT

pass

London Paddington

B

5Y23

XR

Old Oak Depot

1910½

1910½

WTT

1909½

1911

Maidenhead Turnback Line

A

3U17

XR

London Paddington

1912

1912

WTT

pass

London Paddington

3

5Y24

XR

Old Oak Depot

1913½

1913

WTT

Starts here

A

3W18

XR

London Paddington

1915

1915

WTT

1917

1917¼

London Paddington

B

3Y25

XR

Terminates here

WTT

pass

Heathrow Airport Terminal 4

A

9U19

XR

Abbey Wood

1918½

1918½

WTT

pass

Abbey Wood

B

9R26

XR

Reading

1919½

1919

WTT

pass

Heathrow Airport Terminal 5

A

9W20

XR

Shenfield

1921

1922

WTT

1923

1923

London Paddington

C

3Y27

XR

Terminates here

WTT

pass

Reading

A

9U21

XR

Abbey Wood

1924

1924½

WTT

pass

Abbey Wood

B

9H28

XR

Heathrow Airport Terminal 4

1925½

1925

WTT

Starts here

B

3W22

XR

London Paddington

1927

1927

WTT

pass

London Paddington

A

5Y29

XR

Old Oak Depot

1929

1935

WTT

pass

Heathrow Airport Terminal 4

A

9U23

XR

Abbey Wood

1930½

1932

WTT

pass

Abbey Wood

B

9N30

XR

Maidenhead

1932

1931½

WTT

pass

Old Oak Depot

A

5L24

XR

London Paddington

1934½

1934

WTT

pass

Shenfield

B

9T31

XR

Heathrow Airport Terminal 5

1935

1936½

WTT

pass

Reading

A

9U25

XR

Abbey Wood

1937½

1936½

WTT

pass

Abbey Wood

A

9H32

XR

Heathrow Airport Terminal 4

1938

1938¾

WTT

pass

London Paddington

B

5Y33

XR

Old Oak Depot

1940½

1940

WTT

Starts here

C

3W26

XR

London Paddington

1942

1942

WTT

pass

Heathrow Airport Terminal 4

A

9U27

XR

Abbey Wood

1945½

1947

WTT

1947

1948¼

London Paddington

B

3Y35

XR

Terminates here