Airlines canceled more flights in August, but bumped fewer passengers and did a better job at handling luggage, according to a Transportation Department report Tuesday.

The dozen reporting airlines canceled 2.2% of their scheduled domestic flights, which doubled the 1.1% rate in July and was up from the 1.4% rate in August 2016, according to the Air Travel Consumer Report.

Delta Air Lines, Hawaiian Airlines and Virgin America has the fewest canceled flights. The most cancellations were at ExpressJet Airlines, United Airlines and Spirit Airlines.

Airlines bumped fewer passengers during the first six months of the year, after the outcry over a 69-year-old man dragged off a United flight in April.

Airlines reported denying boarding to 0.52 passengers out of 10,000 during the first six months of the year, which was the lowest rate since the department started keeping track in 1995. The second quarter was even better than the first, with a bump rate of 0.44 passengers, which was down from 0.62 in either the first quarter or the same quarter a year earlier.

Bags got to their destinations better. Airlines reported mishandling 2.45 bags out of every 1,000 passengers in August. That marked an improvement from the 2.79 rate in July or the 3.15 rate in August 2016.

Overall, the 1,907 consumer complaints to the department about airlines was down slightly from the 1,914 in July and down significantly from the 2,251 in the same month a year earlier.

Flight punctuality was a mixed bag. Airlines reported that 77.1% of flights arrived within 15 minutes of their schedules, according to the report from the Bureau of Transportation Statistics. That was better than the 76.9% in July, but worse than the 77.6% in the same month a year earlier.

Hawaiian, Delta and Alaska Airlines had the best on-time rates. The lowest on-time rates were at Virgin, JetBlue Airways and Southwest Airlines.

The department is investigating 11 lengthy tarmac delays in August, with fines potential in the worst cases. The nine delays of at least three hours for domestic flights compared to 16 in July. The two delays of at least four hours for international flights compared to six in July.

Three of the lengthy domestic delays and one of the international delays were in Philadelphia.

The domestic flights on Aug. 22 included an Air Wisconsin flight to Louisville delayed three hours and 26 minutes, a PSA Airlines flight to St. Louis delayed three hours and 18 minutes and an Air Wisconsin flight to Milwaukee delayed three hours and four minutes.

The international flight Aug. 18 was an American Airlines flight from Cancun that diverted to Norfolk, Va., and was delayed four hours and two minutes.