So far, one airline, Garuda, Indonesia's national carrier, has canceled an order for 50 737 Max 8 jets. Other airlines are weighing the fallout from the crisis as they warn flight cancellations due to the global grounding of the 737 Max fleet could drag on for weeks. American Airlines, which owns 24 Boeing 737 Max aircraft, is cancelling about 90 flights a day. Southwest Airlines, which has 34 737 Max planes as part of its 750-large fleet of 737 aircraft, has been cancelling an average of 130 of its 4,000 daily flights. United Airlines said it does not expect any further fight cancellations.