Their fleet was withdrawn from service in 1975 .
Swissair bought eight 990As beginning in 1962 , operating them on long - distance routes to South America , West Africa , the Middle and Far East , as well as on European routes with heavy traffic .
Swissair 's fleet was withdrawn from service in 1975 .
Swissair bought eight 990As beginning in 1962 , operating them on long - distance routes to South America , West Africa , the Middle and Far East , as well as on European routes with heavy traffic .