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I hold both US and UK passports but will reside in the UK for the duration. I just wanted to know if it is OK to enter the US on my US passport but leave only showing my UK passport when i return to the UK? i.e. only show my US passport at Heathrow and only show my UK passport at JFK. Thank you.

  • Yes to me that should be fine. Aslongs your flight ticket matches your passport number – Oyinbo oyinbo1 Sep 9 '17 at 13:04
  • Any particular reason to show only one passport when checking in? – Patricia Shanahan Sep 9 '17 at 13:38
  • @PatriciaShanahan to avoid confusing the clerks and/or prolonging the check-in process. If you show them two, do they scan both? – phoog Sep 9 '17 at 14:49
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    User67718: I do this all the time, never had a problem, though my non-US citizenship is of another EU country, which I suppose doesn't make a difference. – phoog Sep 9 '17 at 14:50
  • @phoog I don't know specifically about two passports, but I travel with a US green card and a British Citizen passport. When traveling between the UK and US I always show both on check-in, and it does not seem to cause any problems. Before the US I-94 went electronic, it was necessary to show my green card on leaving the US to stop the check-in agent searching through my passport for an I-94. – Patricia Shanahan Sep 9 '17 at 16:32

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