The ship departed Norfolk on 31 August and arrived at Montauk Point, New York on 5 September. She departed New York Harbor on 14 October for the Philippine Islands, arriving at Manila on 18 March 1899. She acted as a general utility ship for the Asiatic Squadron in the Philippines during the occupation of the islands and during the subsequent insurrection. Crewmembers serving on "Iris" during any of the periods 18 March to 16 November 1899; 14 December 1899 to 16 January 1900; 31 May to 21 June 1900; 1 August 1900 to 27 April 1901 or 18 July 1901 to 4 July 1902 qualified for award of the Philippine Campaign Medal.