In 1982, Winbergh made his Chicago debut as Ferrando, and his Covent Garden debut in the title role of "La Clemenza di Tito". The following year he sang the title role of "Mitridate, re di Ponto" at the Schwetzingen Festival, and made his Metropolitan debut as Don Ottavio. In 1984, he sang Tamino in Salzburg and Ferrando at Drottningholm, as well as Admetus in Gluck's "Alceste" in Geneva. In 1985, he performed as a soloist in Mozart's "Coronation Mass" at the Vatican for the Pope. He made his debut at La Scala in 1985 as well, singing Tamino, and returned there in 1990 for the title role of Idomeneo, repeating the role at Madrid the following year.