It roughly spans 650-700 miles to cover the distance between Baltimore to Atlanta by air which takes roughly 1 hour and 37 minutes to 2 hours to fly. Southwest, Spirit, Delta and Frontier are usually the flights that operate within this route continuously making many rounds throughout the day. Rather than spending a whole hour searching online for the airline you need you can simply visit ebooktrip, review the details of which airlines offer cashback on flights on the route you want to fly, and save you time. Read More on: https://www.ebooktrip.com/blogs/how-can-i-reach-to-atlanta-from-baltimore