The airline offers six travel classes to its passengers, namely Business Class. Currently, Delta airlines offers Economy, Main Cabin, Delta Comfort+, first-class , Delta Premium Select, and DeltaOne. Note that the last two are only available on long-haul flights, with Premium Select only on select international flights.
Delta’s class names are often confusing, as Delta doesn't provide a real first-class . The very best level of luxury that Delta offers is their Delta Airlines Business class. If you research this class, you will find that this is often the sole class that gives lie-flat seating, a standard seating option in other airlines’ business class.