What are the local airports? What is the closest International Airport?
Local: West Yellowstone airport is open from June 1 to Oct 1. The Gallatin Field Airport in Bozeman Montana is 100 miles to the north it is open all year. Idaho Falls is located 100 miles to the south and it is also open all year. International : There are hub airports in Newark, NJ; (Most major carriers) Salt Lake City,Utah; (Most major carriers) Denver, Colorado; Minneapolis St-Paul, Minnesota; Atlanta, Ga (Most major carriers) that have connecting flights to the Gallatin Field and Idaho Falls airports.