If you're traveling with a pet, make sure to check out the 1000 sq. ft. dog park located outside the west end of the North terminal baggage claim & ground transportation area.
Track the security line wait times at http://www.atlanta-airport.com/Passenger/Waittimes/. You may need to arrive a bit earlier during high traffic times.
Terminal A is like being in a shopping mall. It reminds me of Frankfurt airport... So many types I'd shops restaurants and kiosks. Ben and Jerry's is right across gate A26. Yummy!
If you get to the bottom of the escalator and the next train is more than 20 seconds away, and you only have to go to the next terminal over, just walk on the people movers. Otherwise, use the train.
Signage I airport hard to read from a distance. Not enough flight monitor available listing flight departure information. T terminal have limited food options. Not a very wellorganizedairport.
If you come in at D or E and need a cab and dont have to pick up a bag, go to F. The signs won't tell you this is an option and it will save you several minutes of riding that miserable train.
Luckily I only layover in Atlanta and never have to deal with security, which is notoriously bad. The Atlanta airport has anything and everything you need during a layover.
A trick in this aport when u have delays or long layovers is to seek the "directory" and look for additional places to eat and shop (in the other terminals)! :)
Hartsfield-Jackson Atlanta International Airport proudly bears the distinction of being the world’s busiest and most efficient airport and has served as a valuable hub connecting various cities and countries around the globe.