I’d appreciate it if some of you can confirm my understanding of customs/passport control.
Flying to London for a week – customs and passport control required.
Eurostar to Paris – customs and passport control required.
Rail from Paris to Amsterdam – nothing
Fly Amsterdam to Frankfort – nothing
Fly Frankfort to London – We should be staying within the international area of the airport, customs and passport?
Same day flight from London to US – customs and passport required at US entry.