Cheap Bus tickets to Augusta, ME, US

What are the most popular routes to Augusta?

Boston - AugustaAverage priceHK$299Average duration3h 15mDaily departures3
Portland - AugustaAverage priceHK$202Average duration1h 35mDaily departures2
Bangor - AugustaAverage priceHK$198Average duration1h 15mDaily departures3
New York City - AugustaAverage priceHK$584Average duration10hDaily departures10
Washington - AugustaAverage priceHK$732Average duration17h 20mDaily departures9