What is the least reliable airline right now?

A graphic of Wallethub's 2023 airline ranking. In terms of other key findings, Delta Air Lines was named the most reliable airline, while the least reliable was Frontier Airlines. “Delta is the most reliable airline mostly because it didn't have any denied boardings over the past year.



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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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For the third year in a row, Hawaiian Airlines scored the top spot as the most reliable U.S. carrier across these metrics. It had the lowest cancellation rate (fewer than 1% of its scheduled flights were canceled) and bumped just four passengers out of the nearly 10 million people it carried in 2022.

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In 2022 year, Frontier Airlines reported 20.26 customer complaints for each 100,000 enplanements on domestic-scheduled operations. This was the highest rate of customer complaints among U.S. carriers.

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Airline ranking company Skytrax released its 2023 list of the 20 best airlines in the world. Singapore Airlines came in first, taking the win over 2022's winner Qatar Airways. Delta Air Lines is the only US carrier to make Skytrax's top 20 list.

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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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Delta has been recognized as the best U.S. airline and most reliable airline for 2021 by the consumer website WalletHub.

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  • Top 10 safest airlines to fly on right now. After the mega slump in 2020, the airline industry is looking to get back in the game. ...
  • Hawaiian Airlines. Major crashes in the last 50 years: 0. ...
  • Delta Airlines. ...
  • Alaska Airlines. ...
  • American Airlines. ...
  • United Airlines. ...
  • International: Qatar Airways. ...
  • International: Qantas Airways.


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As of 2021, United Airlines ranked in the top 20 out of over 300 airline carriers in terms of safety, which is very good. The company stands out for long-term innovation and excellence when it comes to safety factors.

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JetBlue. JetBlue is well-known as an affordable airline for budget-conscious travelers. However, their commitment to offering high-quality amenities despite their low ticket prices makes them more than just one of the cheapest US airlines. They're also one of the very best.

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Most people don't like the time wake-up times required to hit the earliest flights out of the airport, so a “first flight of the day” oftentimes offers less packed airplanes as well as easy breezy airport concourses. As a bonus, the early morning flights almost always have the best on-time records.

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Based on the most recent data available from 2022, these are the airlines with the worst track record for on-time flights.
  1. Allegiant Air. Coming in at the top (or rather, bottom) of the pack is Allegiant Air. ...
  2. JetBlue. ...
  3. Frontier Airlines. ...
  4. Spirit Airlines. ...
  5. Southwest Airlines.


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A five-star airline is one that delivers the highest level of service and the best in-flight experience. One of the companies that rates airlines is the UK-based research company, Skytrax, which has been awarding individual airlines with between one and five stars.

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World's Best Low-Cost Airlines 2023
  • AirAsia.
  • Scoot.
  • IndiGo.
  • Flynas.
  • Volotea.
  • Transavia France.
  • Sun Country Airlines.
  • Southwest Airlines.


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Delta Air Lines is the largest by revenue, assets value and market capitalization. American Airlines Group is the largest by number of employees.

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Delta charges less baggage fees and makes basic economy more tolerable for a frugal traveler. United, on other hand, has a stronger loyalty program, cheaper award prices and a stronger presence when it comes to global connections.

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