The 1998 Advanta Championships of Philadelphia was a tennis tournament played on indoor carpet courts at the Philadelphia Civic Center in Philadelphia, Pennsylvania in the United States that was part of Tier II of the 1998 WTA Tour.

The tournament was held from November 9 through November 15, 1998.

Steffi Graf won the singles title and earned $79,000 first-prize money.

[1][2] Steffi Graf defeated Lindsay Davenport 4–6, 6–3, 6–4 Elena Likhovtseva / Ai Sugiyama defeated Monica Seles / Natasha Zvereva 7–5, 4–6, 6–2