Dual passport (Italian and british)
Hello guys, I wonder if you can help me with this. I have 2 passports, Italian and British and I live in the UK. A few months ago, I booked a return flight to Italy, and because at the time of the booking I wasn’t a British citizen as yet, I have used my Italian passport details to fill the API. The flight is next April and in the meanwhile (so after the booking) I have gained the British citizenship. I have read quite a bit about travelling with dual passports (so leaving and entering the UK with a UK passport and leaving and entering Italy with the Italian passport) and I was wondering whether I should now update the API with the British passport details or I can leave it as it is with the details of my Italian passport.
Also, as we know the passport is checked twice at least twice at the airport: once at the check-in and at the passport controls. I would like to clarify which passport is used when (even if we know that I have to leave and enter a country with the passport of that country) Same scenario, travelling to Italy from UK and back. At the check-in in UK I will show my British passport but at the passport control I could – in theory - show them the Italian passport, couldn’t I? On the way back in Italy at the check-in I will show my Italian passport (even if I purchased the ticket using the details of my British passport) but at the passport control I could show them the British passport, couldn’t I?