Winter?

United Airlines Boeing 777, Honolulu, Hawaii, USA

While much of the nation is in the cold of winter, it is usually warm in Hawaii during December and every other month.

At most airports, you can only see the planes through thick panes of glass.  At Honolulu International Airport (HNL), you can enjoy a stroll outside and see and hear the planes while you await your flight.  They even have lovely gardens to enjoy.