Delta in June led the U.S. airline industry with the fewest cancellations and third place among all carriers reporting to the Department of Transportation in on-time performance according to the agency’s Air Travel Consumer Report released Thursday.
With a completion factor of 99.98 percent—the measure of flights completed as scheduled—Delta beat out second place finisher and ultra-low cost carrier Frontier Airlines and third place Hawaiian.1 In fact, compared to the seven largest domestic carriers, Delta’s low cancellation rate in June was the industry’s best dating back to June 2011.2
Cancellations at Delta were down year-over-year for the month of June with 2016 besting last year’s 99.7 percent completion factor ranking. The report reflects Delta’s operation prior to the Aug. 8 outage.
Through June, Delta had notched 132 days without canceling a single mainline domestic flight, according to the DOT. Delta was at 94 by the same time last year. The five remaining largest U.S. carriers—Alaska, American, JetBlue, Southwest and United—had a combined 117 cancel-free days during the same period.3
On-time performance saw a similar year-over-year performance improvement with 83.4 percent of domestic flights arriving within 14 minutes of the scheduled arrival time—the DOT’s definition of on-time—compared to 82.2 percent in 2015. Hawaiian topped the on-time arrival rankings.1
Reports of mishandled bags were also down in June with Delta taking the fourth place spot with 1.83 reports per 1,000 enplaned passengers.4 Virgin America took the No. 1 placement with American Airlines the last among carriers reporting.
 Based on DOT Air Travel Consumer August 2016 Report statistics for June 2016 on-time arrival based on domestic flights flown and completion rate based on domestic flights scheduled, compared to all carriers reporting to the DOT.
 Based on Air Traffic Consumer Reports from June 2011 through June 2016 completion rate based on domestic flights scheduled, compared to the seven largest domestic carriers: Delta Air Lines, Alaska Airlines, American Airlines, JetBlue Airways, Southwest Airlines, United Airlines and US Airways operating during the time period.
 Based on Bureau of Transportation Statistics data from January 2015 to June 2016 and January 2016 to June 2016 based on flights canceled.
 Based on DOT Air Travel Consumer August 2016 Report statistics for June 2016 mishandled bags per 1,000 enplanements for domestic flights scheduled, in each case compared to the domestic, mainline carriers reporting to the DOT: Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, Virgin America, Alaska Airlines, JetBlue Airlines, Spirit Airlines, Frontier Airlines and Hawaiian Airlines.