"Delta Air Lines had the highest difference in first-class and economy fares with a $284.55 spread. First-class tickets average $419.62, and economy tickets average $135.07. The higher cost may be attributed to Delta's recently upgraded first-class experience on Airbus A321neo flights, which includes refreshed private seating, more spacious overhead bins, and faster Wi-Fi. Delta's lowest first-class fare is $234.36 between Atlanta and Fort Lauderdale."