Another question about the OTP-PHX run.
I remember having read a checked bag can't transit two times at the same airport. But how it's managed in cases like the OTP run, when you can have LHR-XXX-LHR-YYY-PHX (or the other way around) on single ticket?
Has the bag to be claimed anyway at XXX and rechecked, no matter if it's an overnight or a day time layover? Or the bag is tagged to go directly to destination, regardless its owner routing?
And since we're talking about checked luggage... (yes, blasphemy, I know
) ...If you check a carry-on, can you pick it up at the first US point of entry e do not recheck it, bringing it on board all the subsequent flights?