Originally Posted by
HkCaGu
If you had a round-trip ticket now it's completely used. Not sure of your dates, but had you flown into NRT I guess it may have been cheaper if you bought/redeem a GUM flight on the spot and sit out until the 11th.
I flew into Haneda. Half of the evening's departures were canceled, and the others were to Sydney, the US, and I believe Vietnam. I saw a Seoul flight leaving the following morning but they would not let me sleep in the airport to wait for it. We were arrived 32 hours before the visa requirement expired but they said the flight has to arrive after midnight on the 11th (something I later learned was incorrect).