Hawaiian, Alaska, Delta post best airline on-time ratings, Spirit arrives last

Here are the government's rankings of the leading airlines and their on-time performance for May. The federal government counts a flight as on time if it arrives within 14 minutes of schedule.

1. Hawaiian Airlines, 90.9 percent

2. Alaska Airlines, 88.0 percent

3. Delta Air Lines, 87.2 percent

4. US Airways, 84.5 percent

5. JetBlue Airways, 84.3 percent

6. SkyWest, 82.1 percent

7. Southwest Airlines, 78.6 percent

8. American Airlines, 78.3 percent

9. ExpressJet, 77.6 percent

10. Envoy Air, 77.1 percent

11. United Airlines, 76.6 percent

12. Virgin America, 76.0 percent

13. Frontier Airlines, 73.1 percent

14. Spirit Airlines, 61.2 percent

Total for all reporting airlines: 80.5 percent

Source: U.S. Department of Transportation

The department also reported American and US Airways together as 80.9 percent. Both airlines and Envoy Air are owned by American Airlines Group Inc. The report does not cover smaller airlines including Allegiant Air and many regional carriers.