Hundreds more flights were cancelled at Germany's busiest airport in Frankfurt due to heavy snow on Monday after traffic had come to a complete standstill for several hours a day earlier. So far, a total 203 flights have been cancelled for the whole day, following 445 cancellations on Sunday, a spokeswoman for airport operator Fraport told AFP. All flights had been cancelled for several hours late Sunday afternoon, with many inbound services diverted to other airports, as freezing rain lashed the runways and created ice problems for aircraft. De-icing operations restarted later on Sunday and traffic slowly resumed on a case-by-case basis.