- A seamless and effective travel experience is provided by the Southwest Airlines ATH Terminal at Athens International Airport. Southwest Airlines is well-known for its courteous staff and on-time flights, and it operates out of a terminal that is well-equipped with all the amenities that passengers need. Fast check-ins and cozy waiting rooms are guaranteed at the terminal, whether you're arriving or leaving. During their flight wait, passengers can take advantage of free Wi-Fi, food options, and shopping. For those flying with Southwest in Athens, the Southwest Airlines ATH Terminal is a great option because it is built to easily handle foreign passengers.