These are the 10 most punctual airlines in the world, and only one American company managed to stand out.

Cirium analyzes flight data from more than 600 sources, including airlines, airports, global distribution systems and civil aviation authorities. A flight is considered on time if it lands within 15 minutes of the scheduled arrival time at the boarding gate.

Aeromexico ranked first among global airlines for the second year in a row with 90.02% of its flights arriving on time, an improvement of more than 3% from the previous year. Victory comes after the airline made his debut to $2.8 billion on the NYSE last year and raised $222.8 million.

“Maintaining consistent on-time performance requires sophisticated network planning, operational coordination and the ability to recover quickly when irregularities occur,” Cirium CEO Jeremy Bowen said in a statement. “These results reflect the operational discipline that defines aviation’s top performers.”

Saudia comes in second with 85.63% on-time performance, and Scandinavian airline SAS is third with 86.09%.

Delta is the only U.S. airline to make the top 10 and has the highest rating of any U.S. airline. “Delta’s fifth consecutive victory in North America reflects a sustained operational focus that distinguishes industry leaders from competitors,” Bowen said.

The airline – which flies more than three times as many flights as any other airline in the top 10 – fell in the rankings after placing third last year.

Improved lead times from Azul Brazil Airlines, Spain’s Iberia and Qatar Airways helped improve their ratings and beat the Atlanta-based airline.

Here is the ranking of the most punctual airlines, according to Cirium analysis.

Top 10 most punctual global airlines

1. Aeromexico: 90.02% on-time arrivals
2. Saudi: 86.53%
3. Scandinavian airlines: 86.09%
4. Azul Brazil Airlines: 85.18%
5. Qatar Airways: 84.42%
6. Iberia: 83.52%
7. LATAM Airlines: 82.40%
8. Aviança: 81.73%
9. Turkish airlines: 81.41%
10. Delta Air Lines: 80.90%