Airlines continue to upgrade business class at travelers demand more luxury at the front of the jet. Korean Air and Turkish Airlines are bringing their planes up to standard with sliding doors. Qatar's new QSuite NextGen builds upon what is already considered the world's best business class.

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You can opt-out at any time by visiting our Preferences page or by clicking "unsubscribe" at the bottom of the email. Advertisement New business-class seats seemingly pop up every few months. Air India introduced new suite-like seats in January, Cathay Pacific Airways unveiled an upgraded "Aria" business class in March, and Lufthansa welcomed its versatile Allegris product in April.

Big players Korean Air, Qatar Airways, and Turkish Airlines are also following the trend to strengthen their position in the premium long-haul market. All three unveiled new business-class seats at the Farnborough International Airshow in July. This story is available exclusively to Business Insider subscribers.

Become an Insider and start reading now. Have an account? Log in . These global airlines are responding to the g.