Delta Air Lines, Inc. is a major airline in the United States headquartered in Atlanta, Georgia, operating nine hubs, with Hartsfield–Jackson Atlanta International Airport being its largest in terms of total passengers and number of departures. With its regional subsidiaries and contractors operating under the brand name Delta Connection, Delta has over 5,400 flights daily and serves 325 destinations in 52 countries on six continents.
Delta is one of the oldest still-operating commercial airlines in the United States, having commenced passenger operations in 1929. At the turn of the 21st century it was a founding member of SkyTeam, an airline alliance. The airline ranks first in revenue and brand value among the world's largest airlines, and second by number of passengers carried and passenger miles flown.
History
Early history
The history of the predecessor companies of Delta Air Lines begins with the world's first aerial crop dusting operation called Huff Daland Dusters, Inc. The company was founded on March 2, 1925, in Macon, Georgia, before moving to Monroe, Louisiana, in the summer of 1925. It flew a Huff-Daland Duster, the first true crop duster, designed to combat the boll weevil infestation of cotton crops. The first flight operated by Huff Daland Dusters departed from the airfield at Camp Wheeler, now Macon Downtown Airport, on March 23, 1925 to dust a peach orchard in Montezuma, Georgia. C.E. Woolman, general manager and later Delta's first CEO, led a group of local investors to acquire the company's assets. Delta Air Service was incorporated on December 3, 1928, and was named after the Mississippi Delta region.
Passenger operations began on June 17, 1929, from Dallas, Texas, to Jackson, Mississippi, with stops at Shreveport and Monroe, Louisiana. By June 1930, service had extended east to Atlanta and west to Fort Worth, Texas. Passenger service ceased in October 1930 when the airmail contract for the route Delta had pioneered was awarded to another airline, which purchased the assets of Delta Air Service. Local banker Travis Oliver, acting as a trustee, C.E. Woolman, and other local investors purchased back the crop-dusting assets of Delta Air Service and incorporated as Delta Air Corporation on December 31, 1930.
Delta Air Corporation secured an airmail contract in 1934, and began doing business as Delta Air Lines over Mail Route 24, stretching from Fort Worth, Texas, to Charleston, South Carolina. Delta moved its headquarters from Monroe, Louisiana, to its current location in Atlanta in 1941. The company name officially became Delta Air Lines in 1945. In 1946, the company commenced regularly scheduled freight transport. In 1949, the company launched the first discounted fares between Chicago and Miami. In 1953, the company launched its first international routes after the acquisition of Chicago and Southern Air Lines. In 1959, it was the first airline to fly the Douglas DC-8. In 1960, it was the first airline to fly Convair 880 jets. In 1964, it launched the Deltamatic reservation systems using computers in the IBM 7070 series. In 1965, Delta was the first airline to fly the McDonnell Douglas DC-9.
Growth and acquisitions
By 1970, Delta had an all-jet fleet, and in 1972 it acquired Northeast Airlines. Trans-Atlantic service began in 1978 with the first nonstop flights from Atlanta to London. In 1981, Delta launched a frequent-flyer program. In 1987, it acquired Western Airlines, and that same year Delta began trans-Pacific service (Atlanta to Portland, Oregon, to Tokyo). In 1990, Delta was the first airline in the United States to fly McDonnell Douglas MD-11 jets. In 1991, it acquired substantially all of Pan Am's trans-Atlantic routes and the Pan Am Shuttle, rebranded as the Delta Shuttle. Delta was now the leading airline across the Atlantic.
In 1997, Delta was the first airline to board more than 100 million passengers in a calendar year. Also that year, Delta began an expansion of its international routes into Latin America. In 2003, the company launched Song, a low-cost carrier.
Bankruptcy and restructuring (2005–2007)
On September 14, 2005, the company filed for bankruptcy, citing rising fuel costs. It emerged from bankruptcy in April 2007 after fending off a hostile takeover from US Airways and its shares were re-listed on the New York Stock Exchange.
Acquisition of Northwest Airlines (2008–2010)
The acquisition of Northwest Airlines was announced on April 14, 2008. It was approved and consummated on October 29, 2008. Northwest continued to operate as a wholly owned subsidiary of Delta until December 31, 2009, when the Northwest Airlines operating certificate was merged into that of Delta. Delta completed integration with Northwest on January 31, 2010, when their computer reservations system and websites were combined, and the Northwest Airlines brand was officially retired.
Network
As of April 2026, Delta flies to 64 countries on over 1,000 routes serving the Americas, Europe, Africa, West Asia, East Asia and Oceania. Delta operated 893 daily flights out of its Atlanta main hub in the summer of 2024.
Hubs
Delta has nine hubs as of January 2018:
- Atlanta: The airline's largest hub serving the Southern and Eastern United States and as its main gateway to Latin America and the Caribbean.
- Boston: Delta's secondary transatlantic hub. It offers service to destinations in Europe and North America.
- Detroit: One of Delta's two Midwest hubs. It is the primary Asian gateway for the Eastern United States and it also provides service to many destinations in the Americas and Europe.
- Los Angeles: Delta's secondary hub for the West Coast. It offers service to cities in Latin America, Asia, Australia, Europe, and major domestic cities and West Coast regional destinations.
- Minneapolis/St. Paul: One of Delta's two Midwest hubs. It is the primary Canadian gateway for the airline and also serves many American metropolitan destinations, many regional destinations in the upper Midwest, and some select destinations in Europe and Asia.
- New York–JFK: Delta's primary transatlantic hub. The hub also offers service on transcontinental "prestige routes" to Los Angeles and San Francisco.
- New York–LaGuardia: Delta's second New York hub. Delta's service at LaGuardia covers numerous East Coast U.S. cities and several regional destinations in the U.S. and Canada.
- Salt Lake City: Delta's hub for the Rocky Mountain region of the United States. Delta's service covers most major U.S. destinations and several regional destinations in the U.S., emphasizing the Rocky Mountains and select destinations in Canada and Mexico, and select cities in Europe, Hawaii and Asia.
- Seattle/Tacoma: Delta's primary West Coast hub. The hub serves as an international gateway to Asia for the Western United States. Delta service also includes many major U.S. destinations as well as regional destinations in the Pacific Northwest.
Delta Connection
Delta Connection is a brand name under which Delta Air Lines has air service agreements with domestic regional air carriers that feed traffic to their network by serving passengers primarily in small and medium-sized cities in the domestic market, allowing a better match of capacity with demand in these markets. These include Delta's wholly owned subsidiary Endeavor Air and its third-party contractors Republic Airways and SkyWest Airlines.
Alliance and codeshare agreements
Delta is a member of the SkyTeam alliance and has codeshare agreements with the following airlines:
- Aerolíneas Argentinas
- Aeroméxico
- Air Europa
- Air France
- airBaltic
- China Airlines
- China Eastern Airlines
- El Al
- Garuda Indonesia
- Kenya Airways
- KLM
- Korean Air
- LATAM Airlines
- Rex Airlines
- Saudia
- Scandinavian Airlines
- Seaborne Airlines
- Shanghai Airlines
- Transavia
- Vietnam Airlines
- Virgin Atlantic
- WestJet
Fleet
The Delta Air Lines fleet consists of 1,005 mainline aircraft, making it the third largest commercial airline fleet in the world. Prior to its 2008 merger with Northwest Airlines, Delta mostly operated aircraft built in the United States. The merger introduced Airbus models, now the majority, into Delta’s fleet. Historically, Delta has favored used and older-generation aircraft to lower acquisition costs. Its in-house MRO division, Delta TechOps, plays a key role in efficiently managing the complexity of this diverse fleet, while also generating revenue servicing aircraft and engines for other airlines. Delta operates the world's largest passenger subfleets of Airbus A220, Boeing 717, Boeing 757, Boeing 767, and Airbus A330 aircraft. Wide-body aircraft including the Airbus A330, Airbus A350, and Boeing 767, are deployed on long-haul routes to Europe, Asia, Africa, Oceania, and South America. As of September 2026, Delta's average fleet age is 14.9 years.
Cabin
Delta underwent a cabin branding upgrade in 2015. Availability and exact details vary by route and aircraft type.
Delta One is the airline's premier business class product, available on long-haul international flights, as well as transcontinental service from New York–Kennedy to Los Angeles and San Francisco.
Delta One features lie-flat seating on all aircraft types and direct aisle access from every seat on all types except the Boeing 757-200 (in which only a special sub-fleet of approximately 20 aircraft feature lie-flats) and in their 'type 35L' ex-LATAM A350s (which use a 2-2-2 layout). The Boeing 767-300ER seats, designed by James Thompson, feature a space-saving design whereby the seats are staggered such that when in the fully flat position, the foot of each bed extends under the armrests of the seat in front of it. On the Airbus A330 cabins, Delta One features the Cirrus flat-bed sleeper suite by Zodiac Seats U.S., configured in a reverse herringbone pattern.
All seats are also equipped with a personal, on-demand in-flight-entertainment (IFE) system, universal power-ports, a movable reading light, and a folding work table. Passengers also receive meals, alcoholic beverages, an amenity kit, bedding, and pre-flight Delta Sky Club access.
In August 2016, Delta announced the introduction of Delta One Suites on select widebody fleets. The suites will feature a door to the aisle for enhanced privacy, as well as improved storage space, a larger IFE screen, and an updated design. The suites rolled out on the Airbus A350 fleet, first delivered in July 2017, followed by installation within the Boeing 777 fleet. Delta's Airbus A330-900, which began revenue service for the airline in July 2019, also features Delta One Suites. Also in July 2019, Delta began retrofitting a new seat on the 767-400ER, which featured increased privacy and design similar to Delta One Suites, though without a privacy door. These seats lack a door due to the 767's smaller cabin width.
First Class is offered on mainline domestic flights (except those featuring Delta One service), select short- and medium-haul international flights, and Delta Connection aircraft. Seats range from 18.5 to 20.75 inches (47.0 to 52.7 cm) wide and have between 37 and 40 inches (94 and 102 cm) of pitch. Passengers in this class receive a wider variety of free snacks compared to Main Cabin, as well as free drinks and alcohol, and full meal service on flights 900 miles (1,400 km) and longer. Certain aircraft also feature power ports at each seat and free entertainment products from Delta Studio. First Class passengers are also eligible for priority boarding.
In April 2016, Delta CEO Ed Bastian announced that a new Premium Economy cabin would be added. Since renamed to Premium Select, this cabin will feature extra legroom; adjustable leg rests; extra seat pitch, width, and recline; and a new premium service. Delta introduced it on its new Airbus A350, first delivered in fall 2017, to be followed by the now-retired Boeing 777. In October 2018, Delta announced that it would be selling first class seats on domestically configured Boeing 757 aircraft flying transatlantic routes as Premium Select. Delta's A330-900, delivered in 2019, also offers Premium Select. In 2021, Delta began retrofitting many of its 767-300ER and older A330 aircraft with Premium Select.