Djokovic, 31 years old, overwhelmed Juan Martín del Potro, 29, in an entertaining-and sometimes intense-U.S.
Djokovic, whose progress among the pantheon of tennis' best ever players stalled suddenly following his 12th major title at the 2016 French Open, is now back at the very top of his game courtesy of his impressive 6-3 7-6 (7-4) 6-3 win over the third-seeded Argentine.
"When I had the surgery on my elbow I could truly understand what Juan Martin was going through", Djokovic said. He finished with a flourish, taking the last three games.
In the immediate aftermath of Djokovic's victory, he embraced del Potro at the net in a heartwarming show of class and respect between the friends and foes.
Novak Djokovic has been known as one of the best players in the history of tennis and he has been especially good on his beloved hard courts, winning 52 titles and losing additional 17 finals, including five at the US Open.
"I'm so happy to be playing the final against this magnificent idol".
In their first meeting in a Grand Slam final it was Del Potro, back at this stage for the first time since 2009, who won the coin toss and elected to receive under the Arthur Ashe Stadium roof with heavy rain falling in NY.
With the crowd firmly behind him, del Potro battled to the bitter end, levelling both sets two and three after dropping an early break in both, but ultimately the Serb was too solid.
For Djokovic, it was an illustration of him growing into the championships as he took his run of consecutive sets won to 14, stretching back to the second round against Tennys Sandgren.