In a move to boost its next-day shipping business, Amazon.com Inc. /zigman2/quotes/210331248/composite AMZN +2.49% has hired budget-carrier Sun Country Airlines to fly 10 cargo jets, The Wall Street Journal reported late Tuesday . The Minneapolis-based company will add to the e-commerce giant's already existing U.S. cargo partners such as Air Transport Services Group Inc. /zigman2/quotes/202631986/composite ATSG -1.48% and Atlas Air Worldwide Holdings Inc. /zigman2/quotes/200338181/composite AAWW -0.50% . As part of the deal, Amazon will receive warrants to acquire a minority stake in the airline, the Journal reported. Apollo Global Management Inc. acquired Sun Country two years ago. Amazon stock fell less than 0.1% in the after-hours session and closed up 1.2% Tuesday during regular trading. The S&P 500 index /zigman2/quotes/210599714/realtime SPX +1.60% closed up less than 0.1%.