Go through your results for flights to Yosu in South Korea with Netflights. Although Korean Air usually has the best prices, it's best to double check what's available for your travel dates.
If you don’t have set dates for when you want to fly to Yosu, try searching by month – that way, you can compare airfares throughout the year.
But if you're struggling to find flights to Yosu that work for you, try looking at other airports in South Korea.
For even more options, check what other airports you could fly to Yosu from. You might be able to make a saving by going from a different airport or city.