The two U.S. airlines that are the biggest carriers at Phoenix Sky Harbor International Airport have fared well in a comparison of on-time flights in North America during 2019, according to aviation data firm OAG.
Southwest Airlines actually improved its overall on-time percentage (OTP) record in 2019 compared to a year earlier, while American Airlines saw its on-time percentage slip slightly compared to 2018.
American Airlines is the largest carrier operating at Sky Harbor, while Southwest is No. 2.
OAG's annual Punctuality League report measured data from 57.5 million flight records.