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American Airlines has appointed industry veteran Nat Pieper as its new commercial chief, as its profits trail Delta and United. Pieper, 56, previously led the Oneworld alliance and has held senior roles at Northwest, Delta and Alaska, spanning network, alliances, fleet strategy and finance. He starts Nov. 3, overseeing commercial strategy, the loyalty program, network planning, and revenue and sales. CEO Robert Isom called him a collaborative, results-driven leader. Pieper has urged better technology across partners to make travel more seamless.

Prepared by Christopher Adams and reviewed by editorial team.