Endeavor Air

11% of Endeavor Air’s weather-matched departures left in an hour of bad weather at the origin. 5.1% of them were cancelled, 2.5 times the 2.0% cancelled in normal hours, and 71.7% of those that flew arrived on time, against 86.6%. Those hours held 23% of the airline’s cancelled departures.

In bad weather Endeavor Air cancelled more than other carriers did: of the 21,478 bad-weather departures that could be compared, 5.2% were cancelled, against 3.3% for the other carriers at the same airports in the same months. It was above them in normal hours too (2.0% against 1.2%), so part of the difference is there in clear conditions as well. Its flights that operated arrived on time 71.5% of the time, 1.9 points above the others’ 69.6%.

The most exposed airports were JFK (9.2% of 3,072), LGA (8.7% of 5,488), RDU (5.1% of 889); the least, DTW (1.3% of 2,648), MSP (1.4% of 1,519), ATL (2.1% of 4,021). The widest gap above the other carriers was at JFK, New York: 9.2% cancelled against 4.1%.

Airports are listed with at least 500 of Endeavor Air’s bad-weather departures and 500 weather-matched departures in all. Other carriers is their cancellation rate in the same airport and months, applied to Endeavor Air’s departures there, and is left blank where Endeavor Air was nearly the only carrier flying in the bad-weather hours of most months and there is no one to compare with.

This is the weather reported at the origin in the hour a flight was scheduled to leave, July 2023 – December 2024. It leaves out the weather at the destination and on the way, and an hour takes the worst conditions any report in it gave. Weather was matched to 66.1% of Endeavor Air’s scheduled departures: the rest left from airports with no archived weather, in hours with no report, or at a scheduled time the flight records cannot place exactly. The comparison covers 397 airport-months in which Endeavor Air flew in bad weather; the other carriers are held to the same airport and calendar month, not the same hour of the day or the same aircraft, so a carrier that schedules more of those departures at the busiest or the quietest times is not fully adjusted for. 550 of its bad-weather departures were in an airport and month where the other carriers had fewer than 120 of their own, and are not in that comparison.

Source: FlyerIntel analysis of US DOT BTS flight records and Iowa Environmental Mesonet weather reports · July 2023 – December 2024 · Where the weather comes from, and its limits. All covered airports side by side: What Weather Costs Each Airport.

The median Endeavor Air turn is scheduled for 50 minutes on the ground and takes 59 minutes, against 56 minutes and 63 minutes across all airlines. Endeavor Air schedules its aircraft a shorter time on the ground than the network does. 13.0% of its turns began with an aircraft that landed 15 or more minutes late, against 19.0% for the network.

When the aircraft landed 15 or more minutes late (29,639 turns, 62 minutes late on average), 76% of the turns were finished in no more than the scheduled ground time, against 68% across all airlines. 70% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 6% did (network 11%).

Given the turn lengths it schedules, the network’s rates would give 64% finished in the schedule and 75% leaving late. By that measure Endeavor Air finished more late turns in the schedule and passed lateness on less often than the network would have. 43% of its late-inbound turns had a scheduled turn of 45 to 59 minutes, against 31% of the network’s.

A turn pairs an aircraft’s landing with its next departure by tail number; the aircraft is never named. These 227,187 turns are 75% of Endeavor Air’s flights in the period; the rest are an aircraft’s first flight after a long stay, flights without a usable inbound, and cancelled flights. Ground time is measured from the gate: the scheduled turn plus the departing flight’s delay minus the inbound’s arrival delay. Overnight stays (6 hours or more on the ground), cancelled flights and flights whose inbound diverted are not turns here. Turns scheduled under 30 minutes are a small share and are kept, but they are rarely a plan for that aircraft (more often a swap or recovery, with the flight waiting for an aircraft that was not the one scheduled), so most of them across the network leave late even after an on-time landing. A flight that an airline covered with a different aircraft is linked to the one that flew it, not the one first planned.

Source: FlyerIntel analysis of US DOT BTS flight records · July 2023 – December 2024 · All airlines side by side: How Fast an Aircraft Turns When It Has To.