2007 – NASA’s New Horizons spacecraft made a gravitational slingshot against Jupiter to change the planned trajectory towards Pluto.

The spacecraft flew by the solar system’s largest planet, Jupiter, for a gravity assist maneuver Feb. 28, 2007, with the closest approach at 05:43:40 UT. The encounter increased the spacecraft’s velocity by about 9,000 miles per hour (14,000 kilometers per hour), shortening its trip to Pluto by three years.

Source: for the complete article solarsystem.nasa.gov