Originally Posted by
Daysleeper
Book Heathrow’s own valet parking and you can drop at one terminal and pick up from another.
Or the biz park thing will be fine but really Heathrow’s own valet works well and is super quick getaway.
Good luck with the valet parking, I emailed them a few weeks ago asking if the car was stored under cover or in the open and have yet to receive a reply despite a reminder email sent earlier this week.
Last year I also flew from T3 but returned to T5, I booked the short stay at T5 as there was not much extra to pay compared to long stay or Pod. (Have you checked pricing?) An hour to get from T5 to T3 is sufficient, all things considered but there is no Heathrow Airport train service between terminals, you are using TFL services and you now have to remember to get a free ticket from the machine otherwise you cannot get through the barrier to board the transit train