Delta is confirming its policy for through-check baggage. Effective for travel on or after January 11, 2016, Delta will check a passenger’s baggage between the origin and destination airports that are issued on a single or conjuncted* ticket exclusively.... If a second ticket is presented for travel, Delta will only check the bag to the destination of the Delta ticket(s). Luggage may be claimed at the Delta-ticketed destination, and then re-checked by the customer with the downline carrier for the next flight.