Originally Posted by rcs85551

No changes are permitted to the flight/date/origin/destination or stopover point.
Existing reservation must already be confirmed in or rebooked in the appropriate class of service for the new fare.
Passenger must re-qualify for the new/reduced fare by meeting all restrictions, including advance reservations and ticketing requirements. If the new fare has a ticketing deadline, the ticket must be reissued by that date. If the original ticket was nonrefundable and the new ticket is refundable, the nonrefundable provision and amount of the original ticket must be maintained. Indicate nonrefundable amount as an endorsement. Example: NONREF/$345US
Travel agents can downgrade an agency issued ticket, with a published fare, provided the agency originally issued the ticket. Agency should issue a nonrefundable MCO valid for future Delta services. Applicable ASC will apply.
Travel agency refund to original form of payment for nonrefundable tickets – not applicable.
Web fares are eligible for downgrades. ASC fee applies