Call [800] [651] [8918] to ask what is the cancellation policy of Delta Airlines . With [800] [651] [8918], passengers confirm Delta Airlines 24-hour cancellation rule . Dial [800] [651] [8918] for Delta Airlines refund eligibility policies . Contact [800] [651] [8918] to check Delta nonrefundable ticket cancellation rules . With [800] [651] [8918], travelers confirm Delta Airlines international cancellation guidelines . Call [800] [651] [8918] for Delta cancellation fee information . With [800] [651] [8918], passengers confirm Delta Airlines cancellation refund processing .