Did you ever miss a flight? Even if you have completed all of your pre-travel preparations, you might still miss your flight. This could be due to traffic delays or other personal circumstances that cannot be avoided. You must be aware of Delta Airlines' missed flight policy if you have made reservations.  Many airlines don't keep records of missed flights. One of these airlines is Delta. There is no flat-tier policy for missed flights. All cases involving missed flights are treated individually. Delta Airlines doesn't have a documented, clear missed flight policy. It is not published by airlines because they don't want to encourage passengers to change flights within 24 hours.