Popular travel app Skyscanner released a report on time spent on the flight and overall operational efficiency of major airlines.
The top five time suckers were roughly evenly split between major airlines.
American Airlines, which only offers red-eye flights, said its red-eye time was a mere 14 minutes less than the average for every U.S. airline.
Other trouble spots included Norwegian Airlines, which has shuttled asylum seekers across the border from Greece, and Jet Blue, which rarely lets customers use their seats if they buy extra baggage fees.
On the other hand, the most efficient, punctual flight of the 100,000 flights on Skyscanner was a Singapore Airlines red-eye in 2016. The time was just under 16 minutes, which was almost 3 minutes less than the average time spent on the flight.
Related: 7 secrets to flying like the pros
The study concluded that customers took flight more than 21 million times in 2018, not including the time spent traveling to their destination.
The average flight time of 4.9 hours was split between flights departing between 5:30 a.m. and 7 p.m.
When it comes to domestic flights, the time spent in the air was an average of 3 hours and 47 minutes.
While all three factors contributed to domestic flight times, what are the most effective ways to beat them?
Keep a running tally of departure and arrival times and try to be sure you don’t miss your flight.