DALLAS — The airlines are getting better at sticking to their schedules and are losing fewer bags. Their customers seem to be complaining less often.

Those are the findings of an annual report on airline quality being released today by researchers at Wichita State University and Embry-Riddle Aeronautical University.

The researchers use information compiled by the U.S. Department of Transportation to rate the airlines for on-time performance, baggage handling, bumping passengers off oversold flights, and complaints filed with the government. They planned to release their list of the best airlines later today. The report’s general observations:

On-time performance: The percentage of flights that arrived on time or close enough rose to 81.4 percent in 2016 from 79.9 percent in 2015. Of 12 leading U.S. carriers, only American, JetBlue and Virgin America got worse.

Lost bags: The rate of bags being lost, stolen or delayed fell 17 percent.

Bumping passengers: Your chances of getting bumped by the airline dropped 18 percent, which doesn’t include people who voluntarily gave up their seat for money or a travel voucher.

Fewer complaints: The rate of complaints filed with the government dropped about one-fifth, with complaints rising only for Hawaiian and Virgin America.

The official complaint rates don’t include the larger number of complaints that passengers file directly with the airline.

Clearly, however, airlines still have a perception problem. It’s not hard to find passengers who complain about a miserable flight, a missed connection, or shabby treatment by airline employees. Comments like that abound on Twitter.

“People don’t look at the numbers,” said Dean Headley, a marketing professor at Wichita State and co-author of today’s report. “They just know what happened to them.”