Exploring Concourse B at Atlanta Airport: Airlines, Amenities, and Travel Tips Hartsfield-Jackson Atlanta International Airport (ATL) is a vital hub for both domestic and international travel, making it one of the busiest airports in the world. With over 200 gates spread across its concourses, ATL connects travelers to over 150 domestic and 75 international destinations. [What Airlines fly out of Concourse B in Atlanta](https://allairportsoffices.com/what-airlines-fly-out-of-concourse-b-in-atlanta/)? Among the airport's seven concourses, Concourse B plays a significant role in facilitating a high volume of air traffic, primarily serving Delta Air Lines and a handful of other carriers. In this blog, we will delve into the airlines that operate out of Concourse B, the amenities available for travelers, and some tips to enhance your experience at one of the busiest terminals in the country.