When was the last time an aircraft flew from Moscow to Washington DC? How many such flights have their been since the beginning of the war in Ukraine?

Is this the first and only flight of its kind, or is this a regular occurrence?

When was the last time an aircraft flew from Moscow to Washington DC? How many such flights have their been since the beginning of the war in Ukraine?

Is this the first an only flight of its kind, or is this a regular occurrence?