Delta Air Lines, Inc. announced operating results for the month and year to date ended December 2017. For the month, the company reported total RPM system was 16,727,824,000 against 16,800,043,000 a year ago. Total ASM system was 19,868,064,000 against 19,697,960,000 a year ago. Load factor was 84.2% against 85.3% a year ago. Passengers boarded was 14,373,041 against 14,662,236 a year ago. Cargo ton miles was 174,782,000 against 165,079,000 a year ago. For the year to date, the company reported total RPM system was 217,712,393,000 against 213,097,155,000 a year ago. Total ASM system was 254,325,114,000 against 251,867,396,000 a year ago. Load factor was 85.6% against 84.6% a year ago. Passengers boarded was 186,389,862 against 183,749,650 a year ago. Cargo ton miles was 2,150,842,000 against 1,979,629,000 a year ago.