All customers flying in First or Business Class, including SkyMiles Medallion members and WorldPerks Elite members, will receive up to three checked bags, up to 70 pounds each, for free. SkyMiles Medallion members and WorldPerks Elite members flying in Coach Class will receive up to two checked bags, up to 70 pounds each, for free.


http://www.delta.com/traveling_check...ex.jsp#checked