Passengers are in the wrong places, therefore for example, the munich flight from heathrow on lufthansa is not going because it did not get in last night. that is repeated in many locations. by cancelling these flights, yes it is disruptive to 20,000 people, but it also means the airlines can restore their schedules so that hopefully, the next few days, bear in mind they will be extremely busy with friday, saturday and sunday looking tricky as people get back for the end of the school holiday in england and wales. things will start calming down. i have asked the airlines. i do not have respons...