Bloomberg Singapore Airlines Ltd. reported first-quarter profit almost tripled as lower oil prices reduced costs and the company benefited from the sale of a stake by its subsidiary. Net income rose to S$256.6 million ($190 million) in the three months ended in June from S$91.2 million a year earlier, the carrier said in a Singapore stock exchange statement Thursday. …

  Bloomberg Allegiant Airlines will buy new aircraft for the first time, in a purchase valued at $1.2 billion, as the discount carrier speeds its shift to a fleet of all Airbus Group SE planes by mid-2019. Buying the 12 A320 jets with currently available engines allows the airline to add planes “opportunistically” as Airbus switches its focus to pricier …

  Bloomberg British Airways parent IAG SA will cut capacity and put spending under review in the wake of the U.K.’s decision last month to quit the European Union, with the uncertainty depressing profit growth this year. Operating profit excluding one-time items is now expected to grow by a low double-digit percentage, the London-based IAG said Friday. Prior to the …