Question : Is there another local airport that can get you to Niigata?
Answer : Lucky for you, there is another airport near Tokyo. Narita International Airport (NRT) is 37 miles away, and over the upcoming two months, flights are being booked 19% cheaper than flights from Haneda Airport.
Question : How long do most people stay in Niigata?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.