Flights are cancelled by Delta Airlines within 24 hours after the reservation. It has its own policies and procedures that can help you cancel. Both classes or categories of refundable and non-refundable tickets are subject to the Delta Airlines cancellation policy. If you purchased a non-refundable flight, a specific cancellation fee will be deducted from your original flight ticket. The remaining value will be treated as eCredit and can be used to make future ticket reservations within a year. Additionally, tickets for the basic economic fare cannot be amended or cancelled. Within 30 minutes, the airline notifies the passenger in full of the flight's delay or cancellation. Additionally, announcements will be broadcast in the boarding gate area and also sent by email or text message.