Delta Air Lines, commonly known as Delta, is a major American airline headquartered in Atlanta, Georgia. It is one of the world's largest and oldest operating airlines. Delta operates over 5,000 flights per day to destinations around the world.
As of my last knowledge update in January 2022, Delta Air Lines is known for its extensive domestic and international route network, high-quality service, and membership in the SkyTeam airline alliance. The airline offers a range of cabin classes, including First Class, Delta One (a premium business class service), Delta Comfort+, and Main Cabin (economy class).
Please note that there may have been developments or changes related to Delta Air Lines after January 2022, so I recommend checking with official sources or the airline's website for the most up-to-date information.