Question : How long do most people stay in Busan when they fly in from Raleigh?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : In February, Monday is your cheapest day to fly. Flexibility is paramount when booking travel plans in order to keep costs down.
Question : Are prices changing frequently for this route?
Answer : Prices for this trip tend to fluctuate much more than others. However, the sooner you book, the better price you tend to get.