Freezing weather cancels flights

Airlines have cancelled flights in the Midwest of the USA this week due to the freezing weather, which is causing significant travel disruption. The most impacted airports are Chicago O’Hare Intl (ORD) and Chicago Midway Intl (MDW) – each with almost 60% of flights cancelled today, reports FlightAware. Sub-zero temperatures are the biggest factor impacting travel to/from Chicago and other hubs in the Midwest. Crews cannot safely stay outside very long, constraining their ability to perform services like loading bags and performing mechanical work on aircraft. In the Northeast, temperatures are warmer and less flights have been cancelled. However, wind