Mornington Crescent , 3614 bytes

Take Northern Line to Hendon Central
Take Northern Line to Bank
Take Northern Line to Bank
Take District Line to Gunnersbury
Take District Line to Victoria
Take Victoria Line to Seven Sisters
Take Victoria Line to Victoria
Take Victoria Line to Victoria
Take District Line to Bank
Take District Line to Hammersmith
Take District Line to Cannon Street
Take District Line to Hammersmith
Take District Line to Cannon Street
Take District Line to Bank
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Paddington
Take District Line to Acton Town
Take Piccadilly Line to Holloway Road
Take Piccadilly Line to Acton Town
Take Piccadilly Line to Acton Town
Take District Line to Gunnersbury
Take District Line to Hammersmith
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Victoria
Take Victoria Line to Seven Sisters
Take Victoria Line to Victoria
Take Victoria Line to Victoria
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Mile End
Take District Line to Hammersmith
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Upminster
Take District Line to Mile End
Take District Line to Paddington
Take District Line to Paddington
Take District Line to Acton Town
Take Piccadilly Line to Heathrow Terminals 1, 2, 3
Take Piccadilly Line to Holborn
Take Central Line to Holborn
Take Central Line to Mile End
Take District Line to Upminster
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Barking
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Barking
Take District Line to Gunnersbury
Take District Line to Paddington
Take District Line to Paddington
Take Circle Line to Wood Lane
Take Circle Line to Victoria
Take Circle Line to Victoria
Take District Line to Gunnersbury
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Paddington
Take District Line to Paddington
Take District Line to Mile End
Take Central Line to Fairlop
Take Central Line to Mile End
Take District Line to Barking
Take District Line to Upminster
Take District Line to Upminster
Take District Line to Hammersmith
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Mile End
Take District Line to Gunnersbury
Take District Line to Paddington
Take District Line to Paddington
Take District Line to Hammersmith
Take District Line to Mile End
Take District Line to Richmond
Take District Line to Mile End
Take District Line to Paddington
Take District Line to Paddington
Take District Line to Richmond
Take District Line to Bank
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Stepney Green
Take District Line to Hammersmith
Take District Line to Stepney Green
Take District Line to Upney
Take District Line to Notting Hill Gate
Take District Line to Notting Hill Gate
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Upney
Take District Line to Upminster
Take District Line to Bank
Take Circle Line to Bank
Take Northern Line to Charing Cross
Take Bakerloo Line to Charing Cross
Take Bakerloo Line to Paddington
Take Circle Line to Bank
Take Circle Line to Bank
Take Northern Line to Mornington Crescent

Try it online!

This is most certainly suboptimal, but it's half the size of the solution on esolangs. I have tested this with the interpreter in the Esoteric IDE.

Mornington Crescent , (削除) 3614 (削除ここまで) 3568 bytes

Thanks to NieDzejkob for saving 46 bytes by using shorter line names.

Take Northern Line to Hendon Central
Take Northern Line to Bank
Take Circle Line to Bank
Take District Line to Gunnersbury
Take District Line to Victoria
Take Victoria Line to Seven Sisters
Take Victoria Line to Victoria
Take Circle Line to Victoria
Take Circle Line to Bank
Take Circle Line to Hammersmith
Take Circle Line to Cannon Street
Take Circle Line to Hammersmith
Take Circle Line to Cannon Street
Take Circle Line to Bank
Take Circle Line to Hammersmith
Take District Line to Upminster
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Paddington
Take District Line to Acton Town
Take Piccadilly Line to Holloway Road
Take Piccadilly Line to Acton Town
Take District Line to Acton Town
Take District Line to Gunnersbury
Take District Line to Hammersmith
Take Circle Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Victoria
Take Victoria Line to Seven Sisters
Take Victoria Line to Victoria
Take Circle Line to Victoria
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Mile End
Take District Line to Hammersmith
Take Circle Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Upminster
Take District Line to Mile End
Take District Line to Paddington
Take Circle Line to Paddington
Take District Line to Acton Town
Take Piccadilly Line to Heathrow Terminals 1, 2, 3
Take Piccadilly Line to Holborn
Take Central Line to Holborn
Take Central Line to Mile End
Take District Line to Upminster
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Barking
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Barking
Take District Line to Gunnersbury
Take District Line to Paddington
Take Circle Line to Paddington
Take Circle Line to Wood Lane
Take Circle Line to Victoria
Take Circle Line to Victoria
Take District Line to Gunnersbury
Take District Line to Hammersmith
Take District Line to Upminster
Take District Line to Gunnersbury
Take District Line to Paddington
Take Circle Line to Paddington
Take District Line to Mile End
Take Central Line to Fairlop
Take Central Line to Mile End
Take District Line to Barking
Take District Line to Upminster
Take District Line to Upminster
Take District Line to Hammersmith
Take Circle Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Mile End
Take District Line to Gunnersbury
Take District Line to Paddington
Take Circle Line to Paddington
Take Circle Line to Hammersmith
Take District Line to Mile End
Take District Line to Richmond
Take District Line to Mile End
Take District Line to Paddington
Take Circle Line to Paddington
Take District Line to Richmond
Take District Line to Bank
Take Circle Line to Hammersmith
Take District Line to Upminster
Take District Line to Stepney Green
Take District Line to Hammersmith
Take District Line to Stepney Green
Take District Line to Upney
Take District Line to Notting Hill Gate
Take Circle Line to Notting Hill Gate
Take Circle Line to Notting Hill Gate
Take District Line to Upminster
Take District Line to Upney
Take District Line to Upminster
Take District Line to Bank
Take Circle Line to Bank
Take Northern Line to Charing Cross
Take Bakerloo Line to Charing Cross
Take Bakerloo Line to Paddington
Take Circle Line to Bank
Take Circle Line to Bank
Take Northern Line to Mornington Crescent

Try it online!

This is most certainly suboptimal, but it's half the size of the solution on esolangs.

This is most certainly suboptimal, but it's half the size of the solution on esolangs. I have tested this with the interpreter in the Esoteric IDE.

Try it online!

This is most certainly suboptimal, but it's half the size of the solution on esolangs. I have tested this with the interpreter in the Esoteric IDE.

"Hello, World" is constructed via slicing the following station names and concatenating the results:

Hendon Central
▔▔
Holloway Road
 ▔▔▔
Heathrow Terminals 1, 2, 3
 ▔▔
Wood Lane
▔▔
Fairlop
 ▔▔
Richmond
 ▔

Hello, World is constructed via slicing the following station names and concatenating the results:

Hendon Central
▀▀
Holloway Road
 ▀▀▀
Heathrow Terminals 1, 2, 3
 ▀▀
Wood Lane
▀▀
Fairlop
 ▀▀
Richmond
 ▀