Fly into Narita Intl. Airport (NRT), the closest airport, located 37.2 mi (59.9 km) from the city center. If you can't find a flight that's convenient for your trip, you might consider flying into Haneda Airport (HND), which is 6 mi (9.6 km) away.
If you prefer train travel, the main station is JR Takanawa Gateway Station.