9/5/2023 0 Comments Flight ontime percentage![]() That means American is running a leaner operation and is trying to keep block times tight. American is completing just shy of 70 percent of its flights within the scheduled block time. What does it tell us? Exactly what you’d expect. So this chart shows the percent of flights that operated within that scheduled block time. Departure and arrival time doesn’t really matter. But what if it’s delayed an hour and doesn’t leave until 1p? Well then, as long as it arrives by 232p, it will have still operated within the scheduled 1 hour and 32 minute block time. If the flight leaves at 12p and arrives at or before 132p, then it will have operated within scheduled block time. That means its scheduled block time is 1 hour and 32 minutes. Let’s be very clear about what this means first.ĭelta has a flight from LA to SFO that is scheduled to leave at 12p and arrive at 132p. This shows the percentage of flights that operated within their scheduled block times in February. So what’s the best way to do this? Well let’s take a look at one of my favorite metrics, B0. If they’re too long, you’ll run an expensive and inefficient operation. If your block times are too tight, you won’t run enough flights on time. Of course, nobody is actually scheduling flights with that extreme amount of padding, but different airlines have different strategies. You have to staff for that, and it just makes for a hugely inefficient operation. The downside for an airline is that to schedule a 1 hour flight to take 8 hours, you have to then commit an airplane to that lengthy time. If you say a flight from LA to San Francisco is going to take 8 hours, chances are you will always arrive before schedule, even with those horrible SFO delays. See, airlines have to figure out how long to schedule a flight. Well, this illustrates the time-honored tradition of airlines padding their block times. Now all of a sudden, American has the worst performance of the big four while Southwest has the best. And if we look at the metric the Department of Transportation uses (arrivals within 14 minutes), it’s even more pronounced. This is arrivals exactly on time (or earlier), A0. But if that’s the case, then why does this next metric look so different? The best way to keep an airline running on time is to leave on time. ![]() ![]() You’ve probably cursed American for leaving the gate just as you ran, out of breath, from your late connecting flight. And sure enough, American is very good at that. As far as American is concerned, the best way to run an on-time operation is to get those airplanes off the gate at or before scheduled departure time. Let’s start with American’s favorite metric, D0. I’ll get back to them later, but kudos to them for absolutely crushing it. Their numbers were so good, it skewed the graphs and made it harder to illustrate my point clearly. This makes it easy to compare, but I must apologize to Alaska. I included both mainline and regional numbers all lumped together. To illustrate this, I dug into masFlight’s data, and narrowed it down to the big four airlines in the US (American, Delta, Southwest, and United). So who is right? It just depends on which set of numbers you think matters most. If you go beyond the legacies then Alaska and Hawaiian have legitimate claims as well. ![]() United says it was the best of the legacy carriers in February of this year. Airlines are certainly good at doing that when it comes to on-time performance. For major airlines in North America, Cirium considered the top 20 percent based on ASKs, flights and seats.The funny thing about statistics is you can really manipulate them to say pretty much whatever you want. For the global airlines category, the company considered the top 10 percent of all passenger airlines by capacity and volume criteria-available seat kilometers, flights and seats-and the airline also must serve at least three regions. airports to make the top 10 were Detroit Metropolitan Wayne County Airport and Salt Lake City International Airport.Ĭirium used data from more than 600 global sources between June 1 and Dec. Tokyo's Haneda Airport had the highest percentage of on-time departures among international airports, followed by Sheremetyevo International Airport, Chengdu Shuangliu International Airport, Barcelona-El Prat Airport and Minneapolis-St. Globally, Delta came in fifth, with ANA taking the top spot with 95 percent of 2021 arrivals on time. Alaska Airlines, American Airlines and United Airlines followed, each with on-time arrival percentages at 80 percent or higher. Delta Air Lines had the best on-time performance among major North American carriers in 2021, with 87.8 percent of flights arriving within 15 minutes of the scheduled arrival time, according to airline data analytics supplier Cirium's annual report, released Wednesday.
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