"Skywest is technically an international flight company as they do fly internationally. However, they only have a few international destinations they fly to."
Austrian Airlines flies to 86 destinations in 50 countries. Six of these flights are domestic and 80 are international destinations. We Fly For Your Smile is their slogan.
Cincinnati is a large hub for Delta Airlines, and they serve much of the east and mid west, and some international destinations. Though other airlines such as US Airways, United, Continental, etc fly there.
Delta airlines is an extremely well known airline that is trusted and reliable. It flies to 247 destinations such as Nigeria, Mexico, Ghana and Jordan.
A sizable airport in the United States is Washington Dulles International (IAD). In the scheduled passenger traffic, 38 airlines offer flights to 143 destinations. For more details related to airlines you can contact to airlines buddy.
Spirit Airlines
Spirit Airlines operates flights to various destinations across the United States, the Caribbean, Mexico, and Latin America.
Frontier Airlines is the only airline to fly out of Wilmington-Philadelphia Regional Airport.
Emirates Airlines flies to over 150 destinations in more than 80 countries across six continents, including popular destinations in Europe, Asia, Africa, the Americas, and Australia.
Aerovist airline fly domestically and internationally to a larger variety of different locations. They fly to destinations such as USA, Canada, Russia an India.
southwest flies into about 200 destinations... modify your question.
Southwest Airlines Flies out / into Terminal 3