Originally Posted by
richarddd
I've been told the taxis can go back to the head of the line if they get a short ride to one of the LHR hotels. Perhaps someone can confirm or deny this.
I think that may be correct. However, don't expect the taxi driver to be too happy about taking such a fare, and it will be very expensive. Uber or private taxi booking might be a better option if an inter terminal transfer is needed and no other option is available.