The "Delta Flag" refers to a specific design used by the Delta Air Lines to represent its brand. The flag features a red triangle, symbolizing the letter "A" for "Air," set against a blue background. This design is recognized globally and is often associated with the airline's commitment to service and reliability. In a broader context, the term "delta" can also refer to a geographical feature, where a river splits into smaller streams before entering a larger body of water. This natural formation is crucial for ecosystems and often supports diverse wildlife and plant species.