The highest rate of bumping came from low-priced airlines Spirit and Southwest. Shortly after Simon the rabbit's death, a video showing passenger David Dao being violently dragged off of a United Express flight from Chicago to Louisville, Kentucky, to clear a seat for a flight attendant went viral. The rabbit was said to be in good health when it boarded the plane, and the lawsuit contends that United accounts for one-third of all animal deaths on commercial airlines.
According to the Department of Transportation's Air Travel Consumer Report, 53 animals died on United flights from January 2012 through February 2017, compared to 136 animal deaths on all airline flights.
Airlines reported mishandling 2.54 bags for every 1,000 passengers during the first six months of the year, which was lower than 2.65 for the same period a year earlier.
That rate was lower than the previous record 0.62 rate during the first half of 2016 and the lowest since the department began keeping track in 1995, according to the report from the Bureau of Transportation Statistics.
Since an infamous incident this April, airlines have increased compensation to customers denied a seat and have also made other policy changes. Spirit had the largest rate of canceled flights, at 4.1 percent, and Delta had the lowest, at 0.1 percent.
The DOT since has launched a website where travelers can report issues including tarmac and flight delays, and discrimination.
On-time performance: The 12 reporting US carriers posted an on-time arrival rate of 76.2 percent in June 2017, down from 78 percent in June 2016 and 79.1 percent in May.
The department said 76.2 percent of flights in June arrived on time, down from 78.0 percent in June 2016. The three incidents compared to one report in May and six in June 2016.
Complaints about airline service: DOT received 1,605 complaints about airline service from consumers in June, up almost 8 percent from the total of 1,490 filed in the same month previous year, but down nearly 10 percent from the 1,779 received in May.