Kristine Lilly scored the 99th goal of her career in the second half to complete the scoring.
The match drew only 6,386 fans at Heinz Field.
USA-ICELAND SUMMARY:
Sept. 29 in Pittsburgh
USA 3 Iceland 0. Goals: Parlow 2, Wambach 18, Lilly 61.
USA -- Scurry (Luckenbill, 46), Rampone, Reddick, Chastain, Markgraf (Mitts, 46), Wagner (Hucles, 46), Boxx, Foudy (Roberts, 65), Lilly, Parlow, Wambach (MacMillan, 72).
Iceland -- Helgadottir (Agustsdottir, 87), Faerseth, Gardarsdottir, Olafsdottir (Stefansdottir, 55; Einarsdottir, 85), Larusdottir (Magnusdottir, 58), Hendriksdottir, Vidarsdottir (Kristinsdottir, 76), Andresdottir (Sigurdardottir, 56), Jonsdottir, Arnarsdottir, Arnadottir.
Referee: Riabel Trujillo (Peru).
Att.: 6,386.