One way rental rates from LGA to Newburgh, NY?

[kichan]

Hoping that someone can help me with this challenge. I need to rent a car one-way from LaGuardia to Stewart Airport in Newburgh, NY in August. The lowest rate that I have found is $95. Does anyone know of any lower rates?? My rental dates are picking up on 8/26 around 8pm, and returning on 8/27 around 8 am (just need to get home!!).

Any help would be greatly appreciated.