Originally Posted by
ORDnHKG
Interesting to note that when UA was flying HKG-NRT, even if you terminate at NRT, you still have to go through the same process as to US. That's why for now if I go to US, I would choose to connect in NRT through NH, as flying NH does not need to be checked my carryons.
There are probably 10 other reasons why flying with NH is better than with UA.