I am trying to book award ticket using AAdvantage from Taipei to Chicago in early August. I am trying to make one connection. The only option to fit this criterion is to fly
TSA (Songshan Airport) - HND 14:20 - 18:30
HND - ORD 11:45 - 09:45
So this involves an overnight connection at HND airport. Due to the current restriction, I cannot enter through immigration, so I have to stay in the airside for that length. I don't mind doing that, but is it currently possible to do this? I know HND international terminal airside normally opens 24 hours, so that should be possible in normal situation. But is it still 24 hours during the pandemic period?