[What Airlines fly out of Concourse B in Atlanta](<a href="https://allairportsoffices.com/what-airlines-fly-out-of-concourse-b-in-atlanta/">What Airlines fly out of Concourse B in Atlanta</a>) Concourse B at Hartsfield-Jackson Atlanta International Airport primarily serves Delta Air Lines, which dominates this concourse with a vast number of domestic flights. As one of the busiest terminals in the world’s busiest airport, Concourse B is designed to handle large volumes of passengers efficiently. Whether you're flying for business or leisure, this concourse offers a range of amenities, including dining and shopping options, to enhance your travel experience. Check with your airline for the latest flight and gate information before arriving at the airport.