SkyTeam had the best on-time performance among top airlines in 2025

Delta was the MVP in Cirium’s on-time performance rankings released yesterday. Here are the top 10 on-time airlines:

  • Aeromexico – 90%
  • Saudia – 87%
  • SAS – 86%
  • Azul – 85%
  • Qatar – 84%
  • Iberia – 84%
  • LATAM – 82%
  • Avianca – 82%
  • Turkish – 81%
  • Delta – 81%

What makes Delta impressive is the volume: the airline ran 1.8 million flights and still made it into the top 10. The other nine airlines averaged roughly 300k flights each.

The report lists the top 10 on-time airlines by region and their total completed flights, making it possible to calculate the on-time performance of each alliance among top airlines:

  • SkyTeam – 82% of 2.7m flights
  • Star Alliance – 79% of 3.7m flights
  • No alliance – 79% of 5.5m flights
  • oneworld – 78% of 4.0m flights

The major factor, as always, is the US airlines, where American was the biggest player but also the slowest. On-time performance among major US airlines:

  • Delta – 81% of 1.8m flights
  • United – 79% of 1.7m flights
  • American – 76% of 2.2m flights

(Alaska was on-time for 79% of their 453k flights, and credit to Spirit, which had the same on-time performance for their 218k flights.)