Traveler’s Notes . . .

Telephone ticket sales opened this month for one of the world’s major performing arts events, Scotland’s 50th annual Edinburgh International Festival, Aug. 10 to 30. For tickets, contact Edwards and Edwards agency; tel. (800) 223-6108. For general festival information, call 011-44-131-473-2001, fax 011-131-473-2002. . . . Singapore’s Changi and Britain’s Manchester are the world’s top two airports, according to a survey of about 55,000 passengers by the International Air Transport Assn. The survey rated 54 airports on efficiency, staff friendliness and other factors. . . . Swissair is marking the 50th anniversary of its first North Atlantic flight by twice recreating the trip, on May 10 and June 12. A 44-passenger vintage DC-4 will fly from New York to Zurich, Switzerland; passengers will return on modern aircraft. From Los Angeles, the weeklong package starts at $7,707, double occupancy, with air, hotels, meals and land tours. Reservations: (800) 688-7947. . . . About 34% of Americans would be interested in taking a 14-day vacation aboard the space shuttle if such a trip becomes available, according to a poll by Yesawich, Pepperdine & Brown and Yankeklovich Partners.