What was average speed of Cassini spacecraft from launch to Saturn orbit?

The Cassini spacecraft, launched in October 1997, traveled approximately 3.5 billion kilometers (2.2 billion miles) to reach Saturn. Its average speed varied throughout the journey due to gravitational assists and orbital maneuvers, but it generally averaged around 21,000 kilometers per hour (about 13,000 miles per hour). The spacecraft entered Saturn's orbit in July 2004 after a nearly seven-year journey.