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1. Delta (1.96 complaints per 100,000 passengers) (Credit: Handout)

1. Delta (1.96 complaints per 100,000 passengers)

Top 10 most-complained-about airlines

Most-Complained-About Airlines, from Travel+Leisure magazine, as ranked by number of complaints measured per 100,000 passengers.

JetBlue aircraft sit on a Kennedy Airport tarmac.
(Credit: AP)

JetBlue aircraft sit on a Kennedy Airport tarmac. The airline has announced it will sell food on longer trips. (Jan. 29, 2008)

9. Frontier (0.92 complaints per 100,000 passengers)
(Credit: AP)

9. Frontier (0.92 complaints per 100,000 passengers)

8. Airtran (0.97 complaints per 100,000 passengers)
(Credit: AP )

8. Airtran (0.97 complaints per 100,000 passengers)

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7. Continental (1.0 complaints per 100,000 passengers)
(Credit: Getty Images)

7. Continental (1.0 complaints per 100,000 passengers)

6. Comair (1.03 complaints per 100,000 passengers)
(Credit: AP)

6. Comair (1.03 complaints per 100,000 passengers)

5. American (1.07 complaints per 100,000 passengers)
(Credit: Bloomberg News)

5. American (1.07 complaints per 100,000 passengers)

4. Northwest (1.21 complaints per 100,000 passengers)
(Credit: Bloomberg News)

4. Northwest (1.21 complaints per 100,000 passengers)

3. US Airways (1.31 complaints per 100,000 passengers)
(Credit: Newsday, 2006 / Robert Mecea)

3. US Airways (1.31 complaints per 100,000 passengers)

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2. United (1.34 complaints per 100,000 passengers)
(Credit: Getty Images)

2. United (1.34 complaints per 100,000 passengers)

1. Delta (1.96 complaints per 100,000 passengers)
(Credit: Handout)

1. Delta (1.96 complaints per 100,000 passengers)

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