Just received an email from British Airways that our flight from LHR to SEA on 10/16 was cancelled. No reason given, no re-booking options offered. Jumped on the BA website and after a lengthy wait for info to appear, was able to re-book same class of service for different flights on the same day. Everyone should continuously check their itineraries to make sure you did not miss any communication from air carriers for flights booked out into the future. Airlines are constantly changing schedules and equipment and you need to jump on it to ensure you get a seat on a favorable flight time. Not sure if they will refund our purchased seat option for the original flight, ($169 each seat for business class), but will check the credit card statement over the next few days. We had to re-purchase the seat option for the new flight.
Also be aware that calling airlines in Europe right now is very difficult. They are having weather related cancellations and changes and phone centers are jammed. With BA, they don't even give you the option to wait, they just hang up on you.