????????????????????’???? 24-???????????????? ???????????????????????????????????????????????? ???????????????? ???? (????????????) ????????????-???????????????? allow Delta passengers can cancel their flight for free within 24 hours of booking. In addition to cancellations, any changes you need to make to your ticket during this time can also be done without incurring any extra fees ???? (????????????) ????????????-???????????????? ,as long as you act within the 24-hour window.