Top 10 airlines in the world (2016) by airlines companies revenue.
1. American Airlines Group (US)
2. Delta Airlines (US)
3. United Continental Holdings (US)
4. Lufthansa Group (Germany)
5. Air France-KLM (France)
6. International Airlines Group (UK and Spain)
7. Southwest Airlines (US)
8. China Southern Airlines (China)
9. China Eastern Airlines (China)
10. All Nippon Airways (Japan)