The world's best airports have been named at the annual Skytrax World Airport Awards, with South Korea's Incheon Airport taking out the honour for the second time after its first win in 2009.

The awards, announced at a gala ceremony in Vienna last month, are based on surveys conducted by Skytrax with 12 million passengers participating at 385 airports over a 10 month period.

Asian airports dominated the top 10, with Singapore's Changi Airport in second place and Hong Kong International Airport in third.

London's Heathrow narrowly missed the top 10, placing at number 11, while Sydney Airport placed at number 20 - up 20 spots from the previous year's results.

The top 20 airports are:
1. Incheon International Airport, Seoul
2. Singapore Changi Airport
3. Hong Kong International Airport
4. Amsterdam Schiphol Airport
5. Beijing Capital International Airport
6. Munich Airport
7. Zurich Airport
8. Kuala Lumpur International Airport
9. Vancouver International Airport
10. Central Japan International Airport
11. London Heathrow Airport
12. Copenhagen Airport
13. Auckland International Airport
14. Tokyo International Airport Haneda
15. Frankfurt Main Airport
16. Shanghai Hongqiao International Airport
17. Narita International Airport
18. Abu Dhabi International Airport
19. Kansai International Airport
20. Sydney Airport