Concourse B at Atlanta’s Hartsfield-Jackson International Airport serves as a critical hub for several airlines, particularly Delta Air Lines. What Airlines fly out of Concourse B in Atlanta? Whether you’re flying with a major carrier like Delta or a budget airline like Spirit or Frontier, Concourse B offers plenty of amenities and services to ensure a smooth and pleasant travel experience. From dining and shopping to comfortable lounges, Concourse B is well-equipped to handle the needs of all types of travelers. Make sure to check your flight details ahead of time, and enjoy your journey through one of the busiest airports in the world.