Yunah Lee has thrilled audiences with her "handsomely colored full lyric sound" (Opera News).  She has performed Cio-Cio-San with The Dallas Opera, Minnesota Opera, Washington National Opera, Glimmerglass Festival, Boston Lyric Opera, Opera Carolina, Central City Opera, Opera Memphis, Kentucky Opera, New York City Opera, Utah Opera, Opera Austin, Boheme Opera, Dayton Opera, Opera Roanoke, Virginia Opera, Lyric Opera of San Antonio, Kentucky Opera, Opera de Quebec and the Pacific Symphony.  Elsewhere, she ahs performed this role in Europe with De Vlaamse Opera in Belgium, Theater St. Gallen in Switzerland, Stadttheater Bern in Switzerland, in Braunschweig, Germany, and Opera Ireland.

Other notable roles include Mimi in La Boheme (New York City Opera, Aspen Music Festival, Sao Paolo, Brazil and Korea National Opera), Micaela in Carmen (New York City Opera, Fort Worth Opera, and Tokyo, Japan), Liu in Turandot (Minnesota Opera), Marguerite in Faust (Minnesota Opera, Toledo Opera), Adina in L'Elisir d'Amore (Virginia Opera), and Elvira in Don Giovanni (Palm Beach Opera), Countess in Le Nozze di Figaro (Kentucky Opera), Leonora in Il Trovatore and Donna Anna in Don Giovanni in Korea.