I will be arriving from Tokyo on UA at 2:50PM in a couple of weeks time. From the airport I will be making my way downtown to the Travelodge hotel for a couple of nights stay and was planning to get the train in.

My question is I will be arriving with quite a lot of luggage and some of which is for onward sending within the US via either the regular postal service or Fedex etc..

Rather than lugging it all the way downtown I was hoping to send it off from the airport immediately on arrival. I have been browsing the airport website and it seems there is a Post Office but only in the departures area. As i will be arriving internationally and need to clear customs and immigration before collecting my checked baggage am I correct in assuming I wont then be able to access this Post Office.?

thanks for your help from anybody in the know..!