DELTA AIR LINES INC COM USD0.0001 revenue for the last year amounted to 57.00 B USD, the most of which — 57.00 B USD — came from its highest performing source at the moment, Airline, the year earlier bringing 54.67 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought DELTA AIR LINES INC COM USD0.0001 43.51 B USD, and the year before that — 40.84 B USD.