SAS Scandinavian Airlines is the number four airline in the world, followed by Qantas, LATAM Airlines, WestJet, Luxair, Austrian Airlines, and Emirates.

The study looked at the quality of service, claims-processing, and on-time performance of 72 airlines across the globe.

The 15 Best Airlines of 2019

1. Qatar Airways, Qatar

2. American Airlines, USA

3. Aeromexico, Mexico

4. SAS Scandinavian Airlines, Scandinavia (Denmark, Norway, and Sweden)

5. Qantas, Australia

6. LATAM Airlines, Chile

7. WestJet, Canada

8. Luxair, Luxembourg

9. Austrian Airlines, Austria

10. Emirates, United Arab Emirates

11. Flybe, Great-Britain

12. KLM Royal Dutch Airlines, Holland

13. Singapore Airlines, Singapore

14. Garuda Indonesia, Indonesia

15. Virgin Atlantic, Great-Britain

The 15 Worst Airlines of 2019

1. Thomas Cook Airlines, Great-Britain (ranked 72nd)

2. easyJet, Great-Britain

3. Kuwait Airways, Kuwait

4. Korean Air, South Korea

5. Ryanair, Ireland

6. Norwegian Air Shuttle, Norway

7. Laudamotion, Austria

8. Transavia, Holland

9. Aerolineas Argentinas, Argentina

10. Adria Airways, Slovenia

11. Vueling Airlines, Spain

12. TAP Air Portugal, Portugal

13. Air Mauritius, Mauritius

14. Czech Airlines, Czech Republic

15. Gol Intelligent Airlines, Brazil (ranked 58th)

Read more: Air Mauritius among Worst 10 airlines of 2018