If you cannot avoid checking a bag, use a handheld digital luggage scale to form sure it's below 50lbs where the really expensive oversize fees kick in. Delta Baggage Claim confirms you show up at the airport a minimum of 90 minutes early to make sure you've got enough time for the bag check process. Also, securely attach an identifiable luggage tag will make it easier when you're expecting your bag at the Delta baggage claim Atlanta.