Under the direction of Nancy Strelau, HYSO made its first performance tour in 2001, traveling and performing in Vienna, Graz, Innsbruck and Salzburg, Austria.
The orchestra made its Carnegie Hall debut in New York City in April, 2002 and was a featured performer at the New York State Music Educators Convention in November, 2003 and 2008.
HYSO toured northern France in 2004, performing in Normandy and Paris.
In April, 2006 the orchestra traveled to Germany and the Czech Republic, performing in Berlin, Dresden, Leipzig and Novy Bor. In April, 2009 the group presented concerts in Rome, Florence, Cremona, Italy and in Weggis, Switzerland.
In 2011, the group toured southern Ireland performing benefit concerts in Dublin, Galway, Kilkenny and Bray.
In April 2014, under the direction of Casey Springstead, HYSO toured Normandy and Paris, France with performances commemorating the 70th Anniversary of the D-Day Invasion and the Liberation of France.
The HYSO toured Austria and Germany in the spring of 2016.
Options for individual fundraising are available. Students are not required to participate on a trip to be a member of HYSO.