Mike Cordelli wrote:

LaGuardia is not closest, White Plains (HPN) is closest, it's within the
city limits.. LaGuardia and the others are probably less expensive, it's
expensive to fly into White Plains for some reason.

Airlines can extract a premium from customers who want to fly directly
to HPN rather than an NYC airport. Price-sensitive leisure pax will go
wherever, but IBM and other Westchester businesses will pay whatever.

Besides White Plains, LaGuardia is 30 miles away, Kennedy 36, Newark 47,
Bradley 103, Islip 67, and McArthur is 50 miles away.
Islip is McArthur - which was the other one in the pair supposed to be, SWF?