Hello!
We are planning to travel from London to Edinburgh immediately after arriving at LHR from the US.
I've noticed that fare estimates for the train (even though it appears we can't book until 12 weeks prior) and flights seem to run about the same for that trip, although the travel time is of course longer for the train option.
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How much time should I allow for getting through passport clearance and customs if we book a flight from LHR to EDI?
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If we take the train....After…

