I did this flying internationally. origin to OHare, OHare to philly, philly to London. Had hours to burn in Philly. Took a wander outside for a smoke, couldn'

I did this flying internationally. origin to OHare, OHare to philly, philly to London. Had hours to burn in Philly. Took a wander outside for a smoke, couldn't figure out how to get back inside (the layout seemed like it'd make plenty sense in a car, less so on foot, and a trainline blocked the obvious approach). So asked a nice policeman, who directed me. Once we figured out that it wasn't actually difficult, we repeated once more before we left. Horrible habit I know, but on long flights/connections you spend near on a whole day "airside". It's pretty simple to just explain why you wanted to nip outside for some fresh* air.