Flying Tiger Airlines, post Vietnam, was also a CIA front outfit, that also did "normal" air freight operations around the world, to keep it's "cover" intact.
Even the AVG (American Volunteer Group) could have been considered a CIA outfit, had the CIA been in existence then. They were basically a mercenary unit fighting for the Chinese, while gathering intelligence for the US military. "Flying Tiger Airlines" got their name from them, just as it sounds.