Why are so many flights getting changed?

Airlines publish schedules about a year out from departure and as the flight date gets closer, airlines often need to change the departure time or scrap the flight altogether. Since travel rebounded following COVID-19 lockdowns, airlines have struggled to accurately predict demand.



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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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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. The next-worst airlines were Hawaiian Airlines (66.39%) and Spirit Airlines (66.97%).

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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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Crosswinds greater than 50-60 km/h may cause airlines to delay or cancel flights. Even lower gusts can trigger flight delays or cancellations if the runways are wet or icy, as stiff winds can reduce a plane's ability to brake on the runway.

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If airlines cancel a flight for any reason, passengers are legally entitled to a full refund, including for ticket price, taxes, baggage fees, extra charges and ancillary fees.

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When a flight delay occurs, you are entitled to assistance and a choice between rerouting, reimbursement, or rebooking. If you arrive at your destination more than 3 hours after your scheduled arrival time, you are entitled to the same reimbursement, rerouting, and rebooking structure as a denied boarding.

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In most cases, the airline will offer you the choice between getting a refund or a rerouting on a comparable flight. Note that if the airline offers you a rerouting as an alternative to the schedule change, you do NOT have to accept it if the flight is not to your convenience.

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Even when the travel industry isn't dealing with crises, airline schedule changes are commonplace. A carrier may decrease the frequency of service to a given destination, or they could adjust flight departure times to optimize aircraft utilization.

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Airlines are liable to compensate passengers for delays of three hours or more, which may include meals, refreshments, and even accommodation in some cases. Passengers may be eligible for a refund or placement on the next flight if the delay is more than five hours.

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Recent FlightAware data shows an average of 30,000 delayed flights per day globally — including 7,000 to 9,000 delayed flights per day in the U.S. “Anytime you get over above 4,000 delays in the U.S., it gets noticeable,” says Bangs.

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If conditions allow, the estimated departure time could be moved up.

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If the missed connection is the airline's fault (a delayed initial flight due to mechanical problems, for example), the airline should rebook you on the next available flight. If the next outbound flight is the following morning, the airline should either book you on another airline or provide accommodations and meals.

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Once passengers have boarded the aircraft, the compensation structure is $100 in credit for a delay between three and five hours, $175 in credit for a delay between five and six hours, or a $250 credit for a delay of six hours or more.

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For domestic flights in the U.S., airlines have to pay you 200% of the value of your one-way ticket up to $775 if you arrive at your destination one to two hours past your originally scheduled itinerary or 400% of the one-way ticket price, up to $1,550 if your arrival delay is longer than two hours.

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You might avoid these carriers, when possible, to be less likely to encounter unpleasant flight experiences. 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.

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EasyJet. EasyJet has never had an accident. In fact, its history is so incident-free, it appears difficult to find any serious issue on one of its flights.

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Here's the ranking of US airlines from MOST complaints in May 2022 to LEAST complaints in May 2022:
  • American Airlines (575 complaints)
  • United Airlines (400 complaints)
  • Frontier Airlines (301 complaints)
  • Delta Air Lines (281 complaints)
  • Spirit Airlines (269 complaints)
  • JetBlue Airways (244 complaints)


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