Purchase Delta gift certificates at any Delta ticket office or airport location using cash, check or credit card. You are allowed to purchase up to three gift certificates at no more than $350 each at one time. Each gift certificate can not exceed more than $350.
Visit any airport location with a Delta branch or a Delta ticket office and book a less-expensive, nonrefundable flight with the gift certificates. Nonrefundable flights can not be refunded back to its original payment method and can only be credited in the form of an eCredit voucher.
Call the Delta's Customer Service Reservation Sales team at 800-221-1212 or 800-831-4488 (Hearing & Speech Impaired). Book a flight and book a less-expensive, nonrefundable flight using your gift certificate. For example, if your flight costs $250 and you use a $350 gift certificate, you will receive a $100 in eCredit.