Re: London Heathrow - getting from terminal 4 to terminal 1?

How far is it from terminal 4 to terminal 1 (by distance and time)?
Walking distance?

Much too far to walk. An underground walkway connects T1, T2, and T3,
but not T4.

Is there a free shuttle?

There are airside connecting buses, which you should use if you're
connecting to another flight.

Can I take the "Heathrow
Express" train between terminals for free - or the Underground?

You can take the Heathrow Express for free to the T1-T3 station,
then walk underground to T1, but the airside connecting bus will
probably be faster.



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