Physical Layout
The Hartsfield-Jackson airport in Atlanta is the busiest in the world when we look at sheer volume of people, followed by Beijing, Tokyo-Haneda, and London Heathrow. Because of that, it is no surprise that the designers have gone to great lengths to ensure that the layout can both handle current volumes as well as offer room for expansion (as seen recently with the addition of Concourse F).
The airport itself is laid out in a series of parallel concourses that are labeled from A to F, with a Terminal concourse (“T”) preceding it. Domestic baggage claim is located in concourse T, while international baggage claim is found in concourse F. A few years ago, before the construction of concourse F, the international baggage claim was located in terminal E. This is known to lead to some confusion as not all the signs have been replaced – be careful!
Airlines and Routes
As this is the busiest airport in the world, it should also not come as a surprise that it is serviced by a large number of airlines from various alliances: from American to United and Southwest. It is, of course, the home for Delta, and it is not uncommon to see AirFrance and KoreanAir flights arrive and depart from Atlanta.
The routing options are similarly plentiful with options throughout Europe, the Pacific Rim, China, large portions of Africa, as well as Central and South America.
Lounges
At least one SkyClub can be found in each concourse at ATL, with some having two! Keep in mind that not all SkyClubs are created equal, however, with one of the two in a given terminal being much better than the other. The clubs at A17 and B23 are personal favorites, for example. They are roomy and the staff is always helpful.
In addition to the SkyClub options, you can find The Club in concourse F and an American Airline’s Admiral’s Club in concourse T. Access to The Club is available to members of LoungeClub, Priority Pass, or Diner’s Club International. Priority Pass is offered to all American Express Platinum and Citi Prestige cardholders, so it is the most common method of entry. My favorite thing about this lounge is that you are able to get Glenlivet 12 complimentary! Can’t beat free!
Miscellaneous
Two points of note for travel through Atlanta: they are trying a new boarding process with three parallel lanes which seems to be helping, and an annoyances were expressed with the TSA by the airport itself given absurd wait times.
Be sure to give yourself a little extra while the TSA tries to allocate additional man-power to handle the passenger volume (they certainly have the lanes…) when departing from Atlanta! This isn’t really a concern for passing through, unless you are transferring from an international flight to a domestic one.