I'm flying into Heathrow next month, staying in London for a few days before heading to Amsterdam.
My return flight to the US is out of Heathrow.
I'm trying to figure out what time to book my AMS > LHR flight so that I have enough time to clear customs, switch terminals, and not miss my flight home! Will I need to do a full passport control / customs process going from Amsterdam to LHR?
Any suggestions or thoughts on how much time I should allow for is greatly appreciated.