Typical ANA policy to try to avoid canceling flights until last possible minute. I've had a few domestic flights in Japan go like that. JAL and all other airlines canceled the flights the day before, ANA didn't. I called ANA the day before and asked if I could change my ticket because I think my flight will be canceled, they said no, you must wait until the flight is canceled. So I went to HND for my 6:00 am departure, got through security, waited to board, and suddenly it was determined that they would cancel the flight.... Would've been nice if they could've done this before everyone went to the airport at 5:00 am when we all knew the typhoon was coming. I'm not sure if its a Japanese thing or ANA thing, or just being afraid to make decisions?