If you want to save some cash on your trip to Changwon, then listen up! As any experienced jet-setter will tell you, don't book at the very last minute. Airfares are generally more expensive just prior to the departure date. Also, do some online research and compare your options. If your destination has multiple airports, you may be able to score an excellent price by flying into a smaller terminal. Lastly, another simple way to save some money is be ready to book fast. If you see an irresistible bargain, don't hesitate — grab it while you can.