Originally Posted by
CherryBlossomJAL
Looking to get to T3 on a free train between terminals (from Hilton near T4) or by foot, but I cannot find information if it's an option.
There is a covered walkway from the Hilton to T4 and you can get on the London underground for free to go from T4 station to Heathrow Central station. Then follow the signs to T3 through the underground walkway system. Have a look here:
https://www.heathrow.com/at-the-airp...ween-terminals