Delta Raises Fees on 2nd Bag - Delta has doubled it's second suitcase fee from $25 to $50. They have also increased fees on items that require special handling such as surfboards, skis, bikes, and heavy items. This applies to tickets purchased after July 31.Â The third bag fee goes from $80 to $125. First bag is still free. First and Business Class ticket holders can still check three bags at no charge. The free baggage perk also applies to upper level Delta frequent flier members. Atlanta's Hartsfield Intl is the World's Busiest- ATL is now the worlds busiest airport terminals serving 89.4 billion passengers in 2007. This is an increase of 6.8% over 2006. So far during 2008 the growth has slowed to a 3% growth rate. Second place went to O'Hare and third place was Heathrow.