More than 5,000 flights have been hit with delays and 175 canceled in or out of the US as of Saturday afternoon, according to ...

Travelers flying to or from the U.K. faced further disruptions Saturday as thick fog and low visibility restricted air ...

Russian President Vladimir Putin apologised on Saturday over the crash of an Azerbaijani Airlines plane, though he stopped short of accepting that it might have been hit by Russian fire.

On Saturday, thick patches of fog could reduce visibility to just 100 metres in some places, the Met Office has said.