What is the airline code for Delta Airlines?

The airline code for Delta Airlines is DL. Airline codes, also known as IATA codes, are used to uniquely identify airlines and facilitate easier communication and ticketing. Delta Airlines, being one of the largest and most recognizable carriers, is assigned the code DL, which is derived from the first letter of its name.

In the context of the other options, UA represents United Airlines, HA stands for Hawaiian Airlines, and NK is the code for Spirit Airlines. Each of these airlines has its unique code that helps distinguish it from others within the aviation industry. The use of the three-letter IATA codes is standardized internationally, making it essential for knowing and using the correct code for various airlines, particularly in the roles and responsibilities of a flight attendant.