There are five direct and indirect flights connecting Cardiff and Osaka every week, with the journey taking 22 hrs on average.
Being flexible with your dates could help you find a cheaper flight from Cardiff to Osaka.
In Osaka, Osaka Kansai International Airport (KIX) is usually the cheapest airport to fly to, but there are one airports to choose from. Not sure who to fly with? Qatar Airways are the most popular airlines available from Cardiff.
If you can’t find flights that suit you, consider flying to a another part of Japan.