• In June, Amazon had leased 12 Boeing 767-300 converted cargo aircraft from Air Transport Services Group;
• The company said in October its heightened spending on delivery infrastructure would likely continue over years.

Amazon said on Tuesday it bought 11 Boeing 767-300 aircraft, as it looks to boost its delivery capabilities to cater to a surge in online orders.

The aircraft, including seven from Delta Air Lines and four from WestJet Airlines, will join Amazon’s air cargo network by 2022, the online retailer said in a statement.

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In June, Amazon had leased 12 Boeing 767-300 converted cargo aircraft from Air Transport Services Group, bringing its total fleet to more than 80.

“Having a mix of both leased and owned aircraft in our growing fleet allows us to better manage our operations,” said Sarah Rhoads, vice president of Amazon Global Air.

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The company said in October its heightened spending on delivery infrastructure would likely continue over years.