While Boeing is one of the most well-known aircraft manufacturers in the world, several airlines operate without any Boeing planes in their fleet. If you're curious about What Airlines Don't Use Boeing the list includes carriers like Wizz Air, easyJet, airBaltic, TAP Air Portugal, and JetBlue. These airlines often choose to fly only Airbus or Embraer aircraft to simplify operations and reduce maintenance and training costs. By maintaining a single-manufacturer fleet, they improve efficiency, streamline logistics, and provide consistent service across their networks—all without relying on Boeing aircraft.