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I am flying from London to Central America and back this summer on a bit of an extended holiday.

I am considering stopping over in NYC on the way back for a few days. (My flight from Panama to London would be through NYC anyway and got offered a good deal by a travel agent.)

I am residing in London as an EU citizen and I always use my EU passport to get around the world. However as I was born in the States I am also a fully fledged US citizen with the blue passport. The only time I've used my US passport in the past was for a US holiday a decade ago. I've never lived in the States so I don't sound American etc.

I want to book my flights and travel around Central America using my EU passport for simplicity's sake.

However I have come across on the US foreign office website a bit stating that US dual citizens can only enter and exit the State with a US passport.

What should I do?

I assume that I can't check into my flight on a European passport then enter and exit US border control with a US passport?

Can I just ignore the fact that I've got a US passport and hope they don't clock on it? My EU passport will state my place of birth as the States but as I've said I don't sound American or anything. Is that risky?

I don't want to be turned back at the gates on my first NYC trip!

marked as duplicate by Michael Hampton, Mark Mayo, SpaceDog, Karlson, JoErNanO Dec 23 '15 at 11:22

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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    Wouldn't using the EU passport require having an ESTA? – Relaxed Mar 11 '15 at 13:37
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    Your assumption is incorrect. You can even book your ticket with one passport and check in with the other -- I do it all the time. The check-in counter is interested in establishing your identity and your right to enter the country to which you are traveling. If they mention that you booked with a different passport (which they won't), you can always show them both. If you were born in the US, the US border officer would likely ask why you aren't using a US passport. I don't know for sure, though, since I have never tried to enter the US on my non-US passport. – phoog Mar 11 '15 at 16:40
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As such, using a different passport to board the plane than the one you plan to use to enter the destination country is not a problem and probably pretty common. If there is an exit passport check in the country you are leaving, you can also show a different passport at check-in and to the border guards or, if you are unsure, simply show both passports and explain your situation.

However, one issue in this case is that the details of the passport you provide to the airline will be communicated to the US authorities in advance. And just about everybody apart from US citizens needs some form of advanced authorization to have the right to enter the country.

Since using your EU passport to enter the country would require either a visa or an ESTA (if eligible), I assume the US authorities might automatically check if you do have one of those (which you are not supposed to, I think) based on the info communicated by the airline. If that's true, then you would need to apply for that in advance to be able to board the plane.

I also found the following in a CBP FAQ about ESTA:

If you are a citizen of the U.S., and also of a VWP country, you should not be applying for ESTA. One of the requirements of being a naturalized U.S. citizen is that you apply for, and use, a U.S. passport for your travels. While we are aware that in some cases, naturalized U.S. citizens use their alternate country's passport to travel, our expectation is that you will use the U.S. passport to travel from another country to the U.S. at both points of travel, departing the foreign country, and arriving into the U.S.

If you have a true emergency, and are unable to obtain a U.S. Passport before your travels and have only a VWP-eligible country's passport, then you will have to file with ESTA to use that passport to travel to the U.S., and you will have to use the non-resident queue when arriving at the U.S. airport using the foreign passport. Note: It is important to PRINT a copy of the document for your records. The printout is not required upon arrival into the United States, as the officers have the information electronically. Some airlines require the printout upon check-in, please check with your respective airline.

It's obviously not intended as a full explanation of the law and kind of dances around the issue of what's really allowed or not and what the consequences might be but it does imply that they don't want you to apply for an ESTA and travel on your non-US passport. At the same time, the text also suggests that it's a possibility and that people do get away with it. (Confusingly, it only discusses “naturalized U.S. citizens” but I thought this requirement applied to all US citizens).

The simpler approach is to board the plane in the EU with your US passport, use it to clear customs/immigration in NYC and only switch to your EU passport when entering the next country. Panama (or other Central American countries) won't know or care about the passport you used to board the plane. EU countries don't care either but you can always show border guards your EU passport and use the “EU citizens” queue even if you used your US passport to check in.

For the return flight, you can use the same approach. Since US citizens enjoy visa-free access to all EU countries, you probably won't be asked anything if you only use your US passport. But if needed, you can still show both passports to the airline and yet have them register your US passport's details for APIS purposes, thus obviating the need for an ESTA or a visa. (Do show the EU passport to border guards in the Central American country you are leaving, so that they see the relevant visas or entry stamps, as applicable.)

You could even have a visa for your final destination (if needed) in another passport than the one registered in the APIS system for the benefit of US authorities. If you need a visa, the ground handling personnel at your airport of departure will probably want to see it as well – to ensure you have the right to enter your final destination – but this is not a problem: You can always show them both passports and ask them to enter the details of the US passport in their system.

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    @GayotFow Clarified. – Relaxed Mar 11 '15 at 14:44
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    I assume that the border authority would reconcile the list provided by the airline in advance to whoever is entering the US therefore I could not book the flight on the EU passport then enter the US on a US passport, sidestepping the ESTA requirement? – user27557 Mar 11 '15 at 15:01
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    @GayotFow I routinely leave the US on my non-US passport, and never have a problem. My wife routinely leaves the US without turning in her I-94 without any problem (though she is on a G visa and has no limit to her duration of stay). As I understand it, if one fails to turn in the I-94, the most trouble you'll have is that when you reenter the US you will have to prove when you left to show that you didn't overstay. That obviously doesn't apply to US citizens. – phoog Mar 11 '15 at 16:45
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    You might want to point out that using the US passport to board the plane does not mean that you have to show the US passport to the border control official. I do this routinely when I travel from the EU to the US -- I check in with my US passport and I show my EU passport to the border officer. – phoog Mar 11 '15 at 16:49
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    @user27557 I doubt very highly that they reconcile these lists, but anyway you can avoid that possibility by checking in for the US-bound leg with your US passport. Even if you checked in with the UK passport, and even if the CBP officer has something identifying you as a UK citizen, you still have no ESTA requirement, and in fact you have a requirement not to use ESTA, because you are a US citizen. The US allows dual nationality, and at any point in time you can assert your rights as a US citizen by showing your US passport, regardless of what else you may have done using your UK passport. – phoog Mar 11 '15 at 16:57
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I assume that I can't check into my flight on a European passport then enter and exit US border control with a US passport?

No reason not to as long as you carry both passports. Border control won't check what passport you used to book the flight, and if they do they won't care. You should book the flight on a passport that shows you are allowed to enter the US, but both EU and US passports do that.

  • With an EU passport, you'd need ESTA, however. – phoog Mar 11 '15 at 16:51

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