International to International Transfer is offer at a limited number of airports and just to certain carriers at that airport.
UA @ IAH
AA @ MIA & DFW
DL @ DTW & ATL
there may be others but it is a very limited program. It start as a pilot may be 10 years ago and has not been expanded
So, no to ITI at EWR (UA or anyone else)
Last edited by WineCountryUA; Mar 25, 2023 at 3:40 pm
Reason: More research DFW is AA, not DL and DL is both DTW and ATL -- no clear answer on US CBP site