Originally Posted by
ainternational
Is there only one central international terminal?
Yes.
do JAL and ANA international flights both depart from the same terminal? Are the check in counters just a few rows away from one another?
JAL uses F/G counter. ANA uses D/E counter. They are like next islands.
Look at a map.
http://www.ana.co.jp/wws/japan/e/asw...hnd/index.html
Meaning that pax share the same security lines, immigration, etc?
Yes.