Airlines
Hartsfield–Jackson Atlanta International Airport serves as one of the most influential airline hubs in global aviation, connecting millions of passengers to destinations across the United States and around the world. Airlines operating through ATL serve an extensive network of domestic, regional, and international routes, making the airport a critical hub for passenger movement, business travel, tourism, and global connectivity.
The airport is served by a broad mix of major U.S. carriers, international airlines, regional operators, and global aviation alliances offering nonstop access to key cities across North America, Europe, Latin America, the Caribbean, Asia, Africa, and the Middle East. Leading airlines such as Delta Air Lines, American Airlines, United Airlines, Southwest Airlines, JetBlue, and Frontier Airlines operate extensive domestic services through ATL, while internationally recognized carriers, including British Airways, Lufthansa, Air France, Turkish Airlines, KLM Royal Dutch Airlines, and Qatar Airways, further strengthen Atlanta’s global air connectivity.
As one of the busiest passenger airports in the world, ATL is recognized for its large-scale airline presence and around-the-clock flight operations. Major carriers maintain extensive schedules through Atlanta, supporting connecting passengers, premium cabin travel, international arrivals, and high-frequency domestic routes throughout the day. The airport’s strategic location and operational scale continue to position ATL among the world’s most important aviation gateways for both domestic and international travel.
Airlines Serving Hartsfield–Jackson Atlanta International Airport
Through its expansive airline network, worldwide route coverage, and continuous passenger activity, ATL airport connects passengers to major business centers, leisure destinations, international capitals, and regional hubs across multiple continents. The list below highlights the terminals and their concourses with airlines operating through the Atlanta Airport.
ATL Airport Domestic Terminal Airlines
The Domestic Terminal serves as the primary gateway for most domestic departures and arrivals at Hartsfield–Jackson Atlanta International Airport. Divided into North and South sections, it provides access to Concourses T, A, B, C, and D, which collectively support thousands of daily flight operations across the United States. Major network carriers, low-cost airlines, and regional operators utilize these concourses to connect Atlanta with business hubs, leisure destinations, and regional communities nationwide.
Concourse T Airlines
Concourse T is one of ATL’s primary domestic concourses, serving Delta Air Lines operations and several non-Delta carriers. Located adjacent to the Domestic Terminal, it provides convenient access for passengers traveling on both business and leisure routes throughout the United States.
| Airline | IATA Code | Contact Number |
| American Airlines | AA | 800-433-7300 |
| Avelo Airlines | XP | 346-616-9500 |
| Delta Air Lines | DL | 800-221-1212 |
| Denver Air Connection | KG | 855-235-9322 |
| JetBlue | B6 | 1-844-528-2229 |
| United Airlines | UA | 1-800-864-8331 |
Concourse A Airlines
Concourse A is among the busiest sections of ATL’s domestic operation and is primarily utilized by Delta Air Lines. The concourse supports a high volume of departures and arrivals to major domestic destinations and select international markets.
| Airline | IATA Code | Contact Number |
| Delta Air Lines | DL | 800-221-1212 |
Concourse B Airlines
Concourse B primarily supports Delta Air Lines’ extensive domestic network and serves thousands of passengers daily. Its central location within ATL makes it a key component of the airport’s connecting flight operation.
| Airline | IATA Code | Contact Number |
| Delta Air Lines | DL | 800-221-1212 |
Concourse C Airlines
Concourse C accommodates a combination of Delta operations and select domestic carriers. The concourse provides access to numerous high-frequency routes connecting Atlanta with major cities across the country.
| Airline | IATA Code | Contact Number |
| Delta Air Lines | DL | 800-221-1212 |
| Alaska Airlines | AS | 800-252-7522 |
| Southwest Airlines | WN | 1-302-594-8200 |
Concourse D Airlines
Concourse D serves both mainline and regional airline operations and is frequently used for domestic departures and arrivals, as well as select international-capable flights. The concourse plays an important role in ATL’s daily passenger movement.
| Airline | IATA Code | Contact Number |
| Delta Air Lines | DL | 800-221-1212 |
| Spirit Airlines | NK | 855-728-3555 |
Please Note: Spirit Airlines operations at ATL may utilize gates within Concourse D and other airport locations, depending on operational requirements. Gate assignments and concourse usage are subject to change.
ATL Airport International Terminal Airlines
Maynard H. Jackson Jr. International Terminal serves as ATL’s dedicated international gateway. Designed to accommodate long-haul international operations and global airline partners, the terminal provides access to Concourses E and F, where passengers can connect to destinations across Europe, Asia, Africa, Latin America, the Caribbean, and the Middle East.
Concourse E Airlines
Concourse E was ATL’s first dedicated international concourse and continues to handle a substantial volume of international arrivals and departures. The concourse supports both Delta international services and several global airline partners.
| Airline | IATA Code | Contact Number |
| Aeroméxico | AM | 1-800-237-6639 |
| Delta Air Lines | DL | 800-221-1212 |
| Frontier Airlines | F9 | 602-333-5925 |
| Spirit Airlines | NK | 855-728-3555 |
| WestJet | WS | 1-866-693-7853 |
Concourse F Airlines
Concourse F serves as ATL’s premier international concourse and is home to many of the airport’s flagship international carriers. The facility supports long-haul operations and offers direct connectivity between Atlanta and major cities worldwide.
| Airline | IATA Code | Contact Number |
| Air Canada | AC | 1-888-247-2262 |
| Air France | AF | 0141567800 |
| British Airways | BA | 0344 4930787 |
| Copa Airlines | CM | +58 2127201450 |
| Delta Air Lines | DL | 800-221-1212 |
| Emirates | EK | 091670 03333 |
| Ethiopian Airlines | ET | +244 226434220 |
| Iberia | IB | +34 913336701 |
| KLM Royal Dutch Airlines | KL | +1 800 618 0104 |
| Korean Air | KE | 1-800-438-5000 |
| LATAM Airlines | LA | 1 888 235 9826 |
| Lufthansa | LH | 800-645-3880 |
| Qatar Airways | QR | +974 4144 5555 |
| Scandinavian Airlines | SK | +45 32323135 |
| Turkish Airlines | TK | 800-874-8875 |
| Virgin Atlantic | VS | 800-862-8621 |
| WestJet | WS | 888-937-8538 |
Passenger Advisory: Terminal locations, gate assignments, and airline operations at Hartsfield-Jackson Atlanta International Airport are subject to change without prior notice. Travelers should verify updated flight and terminal details directly with their airline before departure.
Hartsfield-Jackson Atlanta International Airport brings together leading domestic and international airlines under one airport network, providing travelers with access to destinations across the United States and around the world through one of aviation’s busiest hubs.