The nearest airport is in Sheremetyevo Airport (SVO), located 18 mi (29 km) from the city centre. If you're unable to find a flight that fits your schedule, you could also fly into Moscow (VKO-Vnukovo Intl.), which is 10.8 mi (17.5 km) away.
If you'd rather travel by train, make your way to Moscow Kuntsevo-2 Station or Moscow Rabochiy Poselok Station to see more of the city. Catch a ride on the metro at Molodyozhnaya Station for ease of access to the rest of the city.