Also. . .

* Delta Air Lines Inc. ended its alliance with Swissair, Sabena and Austrian Airlines to concentrate on building its new partnership with Air France and AeroMexico. Atlanta-based Delta said the four carriers agreed to honor existing travel agency and corporate sales agreements through Dec. 31. Flights ticketed jointly by the carriers will end Aug. 5, 2000. The companies haven’t released details about dismantling their frequent-flier agreements.