Hartsfield-Jackson Atlanta International Airport (ATL) is more than just an airport; it’s a global crossroads. Known as the world’s busiest airport by passenger volume, ATL serves as a primary hub for Delta Air Lines and a major connecting point for both domestic and international travelers. With two parallel runways, multiple concourses, and nonstop flights to hundreds of destinations, ATL’s Airlines collectively make Atlanta one of the most accessible cities in the world.
Travelers flying within the United States will find a wide range of options at ATL, from full-service national airlines to budget-friendly carriers.
Whether you’re heading to New York, Los Angeles, or a small regional destination, these airlines provide extensive coverage. ATL has two terminals – Domestic and International. The domestic terminal again has two sides – the North and the South.
| Name of the airline | Contact Number | Terminal |
| Alaska Airlines | (800) 252-7522 | Domestic Terminal – North Side |
| Avelo Airlines | (346) 616-9500 | Domestic Terminal – North Side; Concourse T |
| American Airlines | (800) 433-7300 | Domestic Terminal – North side |
| Denver Air Connection | (866) 373-8513 | Domestic Terminal – North side |
| Delta Airlines | (800) 221-1212 | Domestic Terminal – South side |
| JetBlue Airways | (800) 538-2583 | Domestic Terminal – North Side |
| Frontier Airlines | (800) 432-1359 | Domestic Terminal – North side |
| Southern Airways Express | (800) 329-0485 | Domestic Terminal |
| Southwest Airlines | (800) 435-9792 | Domestic Terminal – North Side of Concourse C |
| Spirit Airlines | (855) 728-3555 | Domestic Terminal – North Side |
| Sun Country Airlines | (651) 905-2737 | Domestic Terminal – North Side; Door N 7 |
| United Airlines | (800) 864-8331 | Domestic Terminal – North Side |
For global travelers, ATL offers direct service to major cities across Europe, Asia, Africa, and Latin America. These international airlines ensure Atlanta remains a vital hub for business, tourism, and cultural exchange. All of the flights to international destinations are at the international terminal.
| Name of the airline | Contact Number |
| Aero Mexico | 1-800- 237-6639 |
| British Airways | 1-800- 247-9297 |
| Air France | 1-800- 237-2747 |
| Air Canada | 1-888- 247-2262 |
| Copa Airlines | 1-800- 359-2672 |
| Ethiopian Airlines | 1-800- 445-2733 |
| Etihad Airways | (914) 303-8393 |
| Korean Air | 1-800-438-5000 |
| KLM Royal Dutch Airlines | 1-800-618-0104 |
| Lufthansa | 1-800-645-3880 |
| LATAM Airlines | 1-866- 435-9526 |
| Qatar Airways | 1-877-777-2827 |
| Turkish Airlines | 1-800- 874-8875 |
| Scandinavian Airlines | 1-800- 221-2350 |
| Virgin Atlantic | 1-877-359-8474 |
| WestJet | 1-888-937-8538 |
ATL is organized into seven concourses (T, A, B, C, D, E, and F) in addition to the Domestic and International terminals, making it one of the most efficiently designed airports in the world. For more details on all the terminals you may check our ATL Terminal information page and get a more clearer insight.
Conclusion
ATL Airlines at Hartsfield-Jackson Atlanta International Airport stands as a symbol of global connectivity, offering travelers unmatched access to destinations across the United States and around the world. With a diverse mix of domestic and international carriers, ATL ensures flexibility, convenience, and choice for every passenger. Its strategic role as a hub makes it more than an airport; it is a gateway to opportunity, culture, and commerce, serving millions with efficiency and reliability each year. To get a more detailed outline on the terminals, gates, concourses, and other details, you may check out our page on ATL Maps for a more clearer insight.
FAQs
Delta Air Lines operates the majority of flights at ATL, making it the airport’s primary hub for both domestic and international travel.
Yes. Alaska, American, Delta, Frontier, JetBlue, Southwest, Spirit, Sun Country, and United all provide domestic service from ATL.
Carriers such as Air France, British Airways, KLM, Lufthansa, Virgin Atlantic, and Turkish Airlines offer nonstop flights between Atlanta and major European cities.
Yes. Airlines like Frontier, Spirit, Southwest, and Sun Country provide budget-friendly options for travelers seeking affordable domestic routes.
Yes. Korean Air connects Atlanta to Asia, while Ethiopian Airlines provides direct service to Africa, expanding ATL’s global reach.
Each airline has a dedicated customer service number. For example, Delta: (800) 221-1212, American Airlines: (800) 433-7300, and United: (800) 864-8331.