Using Netflights, you can compare different flights from Belfast to Osaka Kansai International Airport. But if you can’t see the dates you want, or the prices are too high, try broadening your search. Osaka Kansai International Airport is just one of the airports in Osaka, so it's worth considering other options.
You could also try searching by month, if you're flexible on dates. This will show you when prices are at their cheapest and their most expensive. Generally speaking, the earlier you book, the better deal you'll get.
We don't just compare flight prices. If you need to book accommodation for your trip, or you want to hire a car to explore Japan, we've got some options for you to compare. Plus, when you sort your flights and hotel in one booking, you could save even more.