United Airlines considers space weather as the number one operational concern associated with polar flying. During solar activity, it is United Airlines' policy to restrict flights from certain routes and altitudes. If advised of threatening activity prior to the flight, United will not hesitate to fly at lower altitudes and latitudes or even incur a fuel stop. This presentation will review the impact of these intense space weather outbreaks on our polar operations and discuss the processes in place to help mitigate the impact of hazardous space weather.