Mileage credit will not be given for the following:

-Refunded, void, or unused tickets, including unused nonrefundable tickets.
- Airline employees, travel agents, tour conductors, and/or other persons traveling on a nonrevenue basis or travel industry/cargo customer discount fares
- Infants (under age two) traveling without paying an applicable fare. (Mileage will be credited to the accounts of infants traveling on a ticket purchased at the applicable fare)
- Free tickets of any kind, including without limitation SkyMiles Award tickets and tickets received in exchange for a Delta transportation voucher
- Tickets purchased to carry excess baggage such as musical instruments and pets or to provide extra space for the primary passenger
- Delta charter flights
- Tickets issued at fares subject to rules that exclude the earning of mileage credit for the fare. Fares excluded from earning mileage credit frequently change, particularly on partner airlines. You should always check with Delta, the issuing carrier or your travel agent at the time of booking to ensure that the fare you are purchasing qualifies for mileage credit.
- Bookings made through some Internet sites as described at those sites, including without limitation tickets purchased through Priceline.com
- SkyMiles can not be earned on flights to/from Cuba
- Pay with Miles Tickets including MQM accrual