Austrian Airlines begins nonstop flights between Kennedy International Airport and Vienna on March 26 and is offering an introductory round-trip fare of $449 for a limited number of economy-class seats.

There is no requirement of advance purchase or minimum stay, but travel must be completed before April 30.LYONS, FRANCE, will be getting improved air service from New York. American Airlines will begin daily nonstop service out of Kennedy International on May 1.

Air France will begin flights twice weekly between New York and Lyons on April 1 that stop in Paris but do not require changing to a smaller plane there, as is now necessary.