• Delta Airlines offers non-restricted refundable prices that can be refunded up to three hours before the planned departure.
• It is acceptable to cancel refundable main cabin tickets on Delta up to two hours prior to the planned departure.
• Any refundable fare combined with hotels, vehicle rentals, or any combination of the three offers a refund on the flight fare only, according to Delta Airlines' cancellation policy. The third-party vendor can be contacted for hotel and auto rental refunds, which are not covered by the Delta refundable cancellation policy.
• Passengers may request a refund on a refundable Delta ticket in the event of a no-show, but they must pay a no-show penalty of $150 USD and a Delta cancellation fee of $200 USD before receiving the remaining fare value.

Check also : Allegiant refundable cancellation policy