American Airlines has had to cancel hundreds of flights this weekend due to staffing shortages triggered by weather-related disruptions, according to FlightAware data on Saturday. The website, which tracks delays and cancellations in the US skies, showed that American Airlines cancelled more than 800 flights on Friday and Saturday and expects more than 400 cancellations on Sunday. American Airlines CEO David Seymour said in a memo to staff on Saturday that the difficulties began on […]