We are arriving at Niagara International, IAG, around 1:30 am. What are our best options to get to our hotel in Niagara Falls, ONT?
The airport in Niagara Falls NY is small and is used primarily for air freight. It has a very limited number of airlines that use it for passenger service.
I would suggest pre-arranging a taxi for that time of the morning. Be sure to tell them that your destination is NF Canada so that the driver has his/her passport.
The airport's website has information on ground transportation, including info on taxis, uber, etc.
As noted, you should probably book in advance as the driver will need a passport to cross the border.