Delta Air Lines operated more than 55,000 flights carrying nearly 6 million customers during the peak travel period from Dec. 21, 2017, to Jan. 1, 2018, without a mainline flight cancellation while setting a company record with a 99.85 percent combined Delta and Delta Connection completion factor, the measure of flight schedule to flights flown. The airline also started the year on a strong footing with no cancellations on New Year’s Day.1
“Through the hard work and relentless dedication of our employees, Delta endeavors to be the world’s most reliable airline—getting our customers where they want to go safely and with minimal disruption, even during some of the busiest times of the year,” said Gil West, Chief Operating Officer. “Ending yet another year with record-setting performance is a testament to the hard work of all 80,000 Delta employees, who continue to demonstrate what sets Delta apart.”
The strong holiday performance builds on Delta’s record-setting 2017, as the airline flew 90 days without a cancellation across the combined mainline and Delta Connection operation, an increase from 81 days in 2016. Similarly, Delta flew 242 days in 2017 without a mainline cancellation, eclipsing its 2016 record by a day, despite a year of severe weather including a record number of hurricanes that closed airports throughout the Caribbean and Florida for several days, as well as an airport-wide power outage at the airline's busiest hub in Atlanta.2
Delta flew more than 192 million customers in 2017, a record for the airline, on more than 1.8 million mainline Delta and Delta Connection flights around the world.
 Based on Delta's internal statistical reporting of all Delta and Delta Connection flights scheduled between Dec. 21, 2017, and Jan. 1, 2018.
 Based on Delta's internal statistical reporting of all Delta and Delta Connection flights scheduled between Jan. 1, 2017, and Jan. 1, 2018.