Delta Air Lines today reported financial and operating performance for December 2015.

Delta Air Lines and the Delta Connection carriers offer service to nearly 370 destinations on six continents. For more information visit news.delta.com.

Consolidated passenger unit revenue  for the month of December declined 5.0% year over year. Results for the month included a 2 point headwind from calendar timing of the Thanksgiving holiday and 2 points of pressure from foreign exchange.

In an Investor Update issued this morning, Delta announced that it expects its operating margin to be 16.5% - 17.5% and its unit revenue to decline approximately 1.5% for the December quarter.

The company's financial and operating performance is detailed below.    

Preliminary Financial and Operating Results

-December consolidated PRASM change year over year:(5.0)%

-December mainline completion factor: 99.75%

-December on-time performance (preliminary DOT A14): 83.6%