North American carrier on-time performance continued its up-and-down trajectory in April, improving by 4.8 percentage points to 79.7 percent, after dropping 5.1 percentage points in March, according to the latest report from aviation analytics company Cirium.
Delta Air Lines repeated its first-place ranking once again with an April on-time performance of 85.7 percent. WestJet jumped 18.5 percentage points to come in second at 82.7 percent, followed by Spirit, also at 82.7 percent, with an 11.9 percentage-point increase. United Airlines, in fourth, was the only carrier to post a decrease in April, by 0.6 percentage points to 82.2 percent.
Delta and United each placed among the global top 10 on-time airlines at seventh and 10th, respectively.
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North American carriers in April canceled 6,217 flights, down 19.5 percent from March.
Completion factors for North American carriers remained at or above 99 percent, with Delta in the lead at 99.9 percent, followed by Spirit at 99.6 percent, WestJet at 99.5 percent, Alaska Airlines at 99.5 percent and United at 99.3 percent.
A flight is considered on time if the aircraft arrives at the gate within 15 minutes of the scheduled arrival time.
