If you go up 96 you will have to put up with The Grassroots festival in Trumansburg but it should not be bad, We went thru it both saturday and sunday last year. Into Ithaca on 79 west will be one way in the city . use the center lane when you get to 13 , turn right on 13 and go to the far lane. next light turn left, This would be 96 north, Center lane is 96 ,right lane is 89(turn left at the next light).