Catching earlier flight
Hello,
My girlfriend and I are traveling to Singapore to visit her dad in February. I was able to book round-trip F on ANA from IAD to NRT arriving in Tokyo at 3:15PM. My question is that I have looked at booking JAL flight from NRT to SIN, but the flight leaves 6:00PM. I'm too nervous to book that flight same day in case we're delayed, but if I book a flight for the next day what are the chances that if we arrive in time, that we could get request to get on the earlier flight? My apologies, if this is not well explained. Thanks for any insights or suggestions you may have!