An Airbus A220-300 aircraft flies during its unveiling in Colomiers near Toulouse, France, July 10, 2018.

JetBlue Airways has ordered at least 60 regional jets from Airbus, the U.S. airline said Tuesday, a decision that tightens its tie to the European airplane manufacturer, Boeing's chief rival.

The 60 planes are worth close to $5.4 billion at the plane’s list price provided by Airbus, but airlines often receive discounts on jets.

JetBlue will start to retire its fleet of Embraer E-190 planes starting in 2020, to replace them with the A220-300 jets from Airbus, the New York-based airline said. Boeing last week announced its plan to buy control of Embraer's commercial jet business.