The chances of a flight being cancelled can vary depending on various factors such as weather conditions, operational issues, or unforeseen circumstances. While American Airlines strives to operate their scheduled flights with minimal disruptions, there is always a possibility of cancellations due to uncontrollable situations. However, airlines typically have procedures in place to notify passengers in advance about any cancellations or changes to their flights. It's recommended for travelers to stay updated through official channels such as the airline's website or customer service helpline for the most accurate information regarding their specific flight.