Where do I go through customs?
On a  flight to England, we are leaving from Cincinnati and making a stop in  Chicago. Where do we go through customs & immigration, Cincinnati or  Chicago? Or does that wait until we get to England ?  please help! 
Air Travel - 8 Answers
Random Answers, Critics, Comments, Opinions :
1 :
When you are leaving the country it will be your destination city, which will be in England.
2 :
You will go through British customs at whatever airport you land at in England.
3 :
You  go through customs at the airport from where you board a flight that  leaves for a foreign country, in your case Chicago.  Going abroad always  means going 2 customs, once at the departing country, then at the  arriving destination country, both countries have to keep track of who  is leaving and who is entering.
4 :
The answer given by  longliveabcdefg is not correct in your situation.  While many countries  have customs checks upon departure, the United States is not one of them  -- passengers leaving the US need not go through customs and  immigration until they reach a foreign destination where it is required.  In the specific instance asked about in this question, you will not need  to go through customs/immigration until you reach the UK.
5 :
Someone gave Nako a thumb down, but the answer is exactly correct.  There is no passport control or Customs leaving the USA.
6 :
As explained here largely, the USA (and Canada for that matter) DO NOT have Exit Customs Control.
7 :
Welcome  to the UK, a country unlike the US. Unlike the US because there is no  such thing as border preclearance, a tyrannical practice performed by  the U.S. Customs and Border Protection.  You will go through customs upon arrival in the UK.
8 :
it  will be when you get to englad of course. customs are for when you  arrive in a country different from you take off country.  you do have to  go through customs in chicago, cause ohio and chicago have the same  passports and nationality.
