Originally Posted by
KARFA
I would not suggest this is a way around it. Airlines provide information to the US CBP even on itineraries which do not touch the US. Basically the US will know you went to Cuba whether you like it or not, they are not relying on searching for stamps in your passport.
On what legal basis does US CBP have ongoing BAU acccess to my non US itinerary? Disproportionate under GDPR surely?
To access this data, for example Iberia would have to routinely supply customer details of all flights on MAD-HAV to the US? I don't believe that happens on a BAU basis.
Happy to be corrected, I work in data....