Does JFK airport (in NYC) have A LOT more international flights than Buffalo airport or Niagara Falls airport in the state of New York?

I know all 3 are international airports, but does JFK (in New York City) have A LOT MORE flights to foreign countries than the one in Buffalo or Niagara Falls?
a) yes
b) no

When you answer, can you give me an explanation?

Popular: Top 5 places to visit in Oslo Top 5 the Most Visited Art Museums in the World Top 4 the Most Famous Sights in Paris Things That Make Toronto Great! 5 Tips for Travelling with Pets