The latest award follows a recognition in July at the Farnborough Air Show where Qatar Airways received a similar award from Skytrax.
At the Business Traveller Awards, the airline was also named finalist in several other categories: best airline, best long-haul airline, best economy class, best middle eastern airline and best cabin staff.
In May, Qatar Airways launched the first all-business class service operating between Doha Airport and London’s Heathrow with an A319 aircraft offering 40 seats.
The daily service has proven increasingly popular with the UK business market and offers an additional private jet-like option to complement the existing five frequencies between the two cities.
“The recent commencement of our first A380 plane on the London-Doha route will allow us to continue to redefine air travel,” said Qatar Airways group chief executive Akbar Al Baker.
Qatar Airways took delivery of its first A380 aircraft on Sept 17 this year.