In general when looking for the cheapest flight to Jeju-do, try to book your flight during the month of May for the best deal.
On average, the cheapest flights to Jeju-do are found when departing on a Friday. Try to avoid departing on a Wednesday, as this is usually the most expensive day.
Our data shows that the cheapest Jeju-do flights are usually those with midday departure times. morning flights are often costlier.