Flights to two out of three airports in Moscow - Sheremetevo in the north and Vnukovo in the west - were redirected early Friday morning to reserve airports in Nizhny Novgorod and St. Petersburg in northwestern Russia due to bad weather, an official at Nizhny Novgorod airport said.
However, Vnukovo has now reopened.
"The airport was closed in the morning due to thick fog, but now the weather has improved and Vnukovo has resumed normal operations. Visibility is 1,600 meters [5,250 feet]," the spokeswoman said.
As one of the bitterest winters in recent history fades into memory, fog and poor visibility have replaced Arctic temperatures, which forced authorities earlier to close Sheremetevo, Russia's main international hub, and Vnukovo for arrivals and departures until 1p.m. Domodedovo in the south of the capital was the only airport in the city operating normally, an official in Moscow's air traffic control center said.
So far, 15 planes bound for Sheremetyevo landed in Nizhny Novgorod and Pulkovo in St. Petersburg, an official at Nizhny Novgorod airport said.
"Another two flights heading for Vnukovo also had to make emergency landings at the reserve airports," the official said.