Flightstats just released their report about the most and least punctual airlines from 2017. The OPS ( On-time Performance Service) awards categories are grouped into three areas: International (Mainline and Network), Major (by region for Mainline and Network), and Low-Cost Carriers.

An airline must meet specific requirements before being considered within an awards category. These conditions include the total annual scheduled passenger flights, the geographical nature of their route network and the degree to which Flightstats can acquire flight status data. The methodology is a fair, objective, and reasonable approach that allows to optimally account for an airline’s size, breadth of network and route characteristics.

Overall most punctual airlines:
1. airBaltic – 90.01%
2. Hong Kong Airlines – 88.83%
3. Hawaiian Airlines – 87.24%
4. Copa Airlines – 86.39%
5. Qantas Airways – 86.18%
6. Japan Airlines – 85.27%
7. Vueling Airlines – 85.25%
8. Jetstar Asia – 85.08%
9. Skymark Airlines – 85.00%
10. Aer Lingus – 84.46%
11. Transavia – 84.25%
12. Azul – 84.14%
13. Singapore Airlines – 84.07%
14. All Nippon Airways – 83.81%
15. Qatar Airways – 82.95%
16. Delta Air Lines – 82.76%
17. Alitalia – 82.40%
18. Aegean Airlines – 82.38%
19. Austrian Airlines – 82.15%
20. Volaris – 82.13%

Most punctual among “mega airlines” only:
1. Japan Airlines – 85.27%
2. All Nippon Airways – 83.81%
3. Delta Air Lines – 82.76%
4. IndiGo – 81.22%
5. Alaska Airlines – 81.06%
6. SAS – 80.90%
7. United Airlines – 79.86%
8. LATAM Airlines Group – 79.39%
9. American Airlines – 78.97%
10. Southwest – 78.55%
11. British Airways – 78.55%
12. Lufthansa – 76.90%
13. Air France – 76.44%
14. Turkish Airlines – 76.35%
15. easyJet – 74.82%
16. JetBlue – 71.74%
17. Air Canada – 67.32%
18. China Southern Airlines – 64.19%
19. China Eastern Airlines – 61.80%
20. Air China – 60.14%

Overall least punctual airlines:
1. Xiamen Airlines Company – 58.3%
2. Philippines AirAsia Inc. – 58.0%
3. Sunwing Airlines Inc. – 57.9%
4. Cebu Pacific Air – 57.6%
5. SATA International-Azores Airlines S.A. – 57.1%
6. Indonesia AirAsia X – 56.8%
7. LACSA-Lineas Aereas Costarricenses -54.2%
8. Shenzhen Airlines – 53.5%
9. AVIOR Airlines – 53.1%
10. Air Inuit – 44.6%

Most punctual “Mega” airports:
1. Tokyo Haneda – 86.75%
2. Madrid – 83.63%
3. Atlanta – 82.38%
4. Denver – 82.24%
5. Dallas/Fort Worth – 81.36%

Most punctual major airports:
1. Minneapolis St Paul – 85.72%
2. Doha – 85.41%
3. Moscow Sheremetyevo – 83.55%
4. Detroit – 83.30%
5. Phoenix – 83.22%

Most punctual large airports:
1. Osaka – 88.45%
2. Salt Lake City – 86.01%
3. Sapporo – 84.73%
4. Brasilia – 84.58%
5. Rio de Janeiro – 84.25%

Most punctual medium airports:
1. Birmingham – 89.52%
2. Panama City – 88.26%
3. Cologne Bonn – 86.66%
4. Belo Horizonte – 84.96%
5. Stuttgart – 84.71%

Source: Flightstats