Why do so many flights keep getting cancelled?

Mass flight delays and cancellations happen because of bad weather. Thunderstorms, hurricanes, tornadoes, or even extreme heat aren't new, but record-breaking temperatures and more frequent weather disasters in the past year added stress on the air travel industry.



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BTS data from July 2021 to June 2022 shows Hawaiian performed best of all U.S. airlines with just a 0.81% cancellation rate. Delta took second place again — with a cancellation rate of 1.63%. Meanwhile, merger partners JetBlue (3.81%) and Spirit Airlines (4.11%) canceled the highest percentage of all flights.

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First, it's important to know that about 25,000 flights are usually scheduled to depart from U.S. airports daily. “It is 'normal' to expect around 1 to 2 percent of flights to be canceled,” said Gary Leff, author of ViewFromTheWing.com.

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Frontier Airlines has had the worst on-time arrival performance so far in 2023. Just 65.41% of Frontier flights arrived on time from January through April 2023.

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Perhaps even more significant is the stark drop over the past year. August 2023 U.S. airfares averaged 13% lower than what they were in August 2022. Things get especially interesting when compared to pre-pandemic prices.

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How the major airlines ranked for cancellations in 2022
  • Frontier Airlines – 2.87% of flights canceled.
  • Spirit Airlines – 3% of flights canceled.
  • Southwest Airlines – 3.26% of flights canceled.
  • Allegiant Air – 3.52% of flights canceled.
  • JetBlue Airways – 3.74% of flights canceled.


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  • Buffalo Niagara International Airport (BUF) has the highest cancellation rate in the country for 2022: 5.55% - up from 1.43% in 2021. ...
  • LaGuardia Airport (LGA) in New York City saw the largest increase in canceled flights – from 1471 in 2021 to 8795 in 2022 - a 497.89% jump.


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U.S. travelers report that American Airlines is the most unreliable airline in the world when measured by the total flight problems and reported complaints in 2022. American is also the world's largest airline, so this finding may not surprise frequent flyers.

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1. Singapore Airlines: The Singapore flag-carrier has been named Airline of the Year at the Skytrax World Airline Awards 2023 in Paris. Click through the gallery to see the best of the rest.

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According to the AirAdvisor Airline Safety Score, Alaska Airlines, Allegiant Air, American Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, and United Airlines are all the safest. Each had a perfect accident record in 2022 and had no reported incidents based on data from IATA.

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Rain is just water, no matter the pressure. Modern aircraft can generate lift regardless of the heaviness of the rain. Planes can and will take off and land in the rain. The only real problem with heavy rainfall is the decrease in visibility for the pilots.

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The Bureau of Transportation Statistics says that consumer complaints against airlines have soared by more than 300 percent since 2019. (The most common type of complaint was not getting the refund for canceled flights, which airlines are required to give. The second most common was flight delays and cancellations.)

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Contrary to popular belief, airlines don't cancel flights just to save money, for instance if there aren't enough passengers to make it worth their while. But they do cancel flights to prevent even wider cancellations and delays.

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Summary: Buffalo Niagara International Airport (BUF) has the highest cancellation rate in the country for 2022: 5.55% - up from 1.43% in 2021. That's an increase of 286.77%. LaGuardia Airport (LGA) in New York City saw the largest increase in canceled flights – from 1471 in 2021 to 8795 in 2022 - a 497.89% jump.

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Lufthansa Airlines – 3.69 per cent, or 2,521 cancelled. Scandinavian Airlines (SAS) – 3.4 per cent, or 812 cancelled flights. KLM Royal Dutch Airlines – 2.64 per cent, or 628 cancelled flights. Germany's Eurowings – 2.47 per cent, or 835 cancelled flights.

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There are several reasons why flights may be canceled, including bad weather, air traffic restrictions, lack of airplane or staff, technical problems, and low passenger numbers.

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Based on flight status data, flights after 3 p.m. have a 50 percent higher chance of being canceled, on average, than those that depart earlier in the day. Early morning on-time performance is all thanks to the thin air traffic.

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Travelers are twice as likely to have a flight canceled flying on Thursday as opposed to a Tuesday, according to the data. Tuesday was the clear winner with the least cancellations and the least flight delays, with Monday close behind.

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The Loganair Westray to Papa Westray route is the shortest scheduled passenger flight in the world. Flights on the route are scheduled for one and a half minutes, and actual flying time is closer to one minute. The record for the fastest flight is 53 seconds.

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The longest flight in the world, currently flown by Singapore Airlines, is proof. For travelers who want to visit loved ones—not to mention frequent fliers looking for new ways to earn and burn miles and points—this 19-hour journey from John F. Kennedy is a gem in the crown of ultra-long-haul travel.

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In 1958, that Cessna 172 flew nonstop for 64 days, 22 hours and 19 minutes and covered 150,000 miles (240,000 kilometers). That's about six times around the Earth or 15 Sydney-New York flights without touching the ground, and still stands as a world record, according to the Guinness World Records.

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