According to information at 00:07 Moscow time, three flights were delayed in Vnukovo, six canceled, one flight at Domodedovo was delayed, and 13 were canceled.
At Sheremetyevo, four flights are delayed and canceled 11.
Forecasters have previously announced in the metropolitan area a "yellow" level of weather hazard due to fog.
The warning is valid until 09:00 Moscow time on November 2.