If you want a cheap flight from Newcastle to Osaka, you've got two airlines to choose from.
You can use the filters on your search to see more flights and find cheaper rates – Osaka has more than one airport. So if you don't need to fly into Osaka Itami Airport, it's worth checking your other options. The 9232 km flight usually takes about 20 hrs.
There are about nine flights via Osaka every week, so you have plenty of options.
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.