Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Mar 2nd. As of Feb 20th, it's showing the cheapest ticket sales at $4,393. That is 5% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : How much should a trip from Austin (AUS) to Seoul (GMP) cost?
Answer : Flight prices are fluctuating a lot less for this route than most routes from the United States, as they're ranging from $3,940 to $5,045. Prices tend to be lower the further out you book.
Question : How long do most people stay in Seoul?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.
Question : Would you be willing to change your travel days if it saved you money?
Answer : The lowest-cost day to fly in March is Thursday. Flexibility is paramount when booking travel plans in order to keep travel costs down.