I used the app 'get your guide' and it was quite a long day! 19 hours in total. So probably about 7 hours driving one way. But it was worth it I'd say!
@@chefnme3301 hey! Sorry for the late reply. But I chose this one from NYC! www.getyourguide.co.uk/new-york-city-l59/niagara-falls-in-one-day-tour-from-new-york-city-t134328/?