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Least Reliable US Airlines

The US airlines with the weakest controllable-delay record in US DOT data.

  1. 1F9 logoFrontier AirlinesF9 · United States · 1,055,550 flights79.5%
  2. 2B6 logoJetBlue AirwaysB6 · United States · 1,464,246 flights80.8%
  3. 3G4 logoAllegiant AirG4 · United States · 746,355 flights83.0%
  4. 4WN logoSouthwest AirlinesWN · United States · 8,148,377 flights83.4%
  5. 5HA logoHawaiian AirlinesHA · United States · 419,604 flights83.6%
  6. 6AA logoAmerican AirlinesAA · United States · 11,246,280 flights84.3%
  7. 7NK logoSpirit AirlinesNK · United States · 1,325,554 flights86.5%
  8. 8UA logoUnited AirlinesUA · United States · 8,050,955 flights87.1%
  9. 9AS logoAlaska AirlinesAS · ALASKA · 2,439,709 flights87.5%
  10. 10DL logoDelta Air LinesDL · United States · 9,198,747 flights88.1%

How this list is built. US airlines with 50,000+ flights, ranked by airline-attributed on-time rate (worst first) from US DOT (BTS) data. Display-only context — advisory, not a guarantee for any one flight.

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