In November, Radjabov participated in the Skilling Open rapid chess tournament which was the first tournament as part of Champions Chess Tour 2021. Radjabov qualified to the quarterfinals by earning 8 points in 15 games, and was eliminated by Wesley So. In December, Radjabov joined Airthings Masters, second tournament of the Champions Chess Tour. Radjabov placed 5th among 12 players in the preliminary round by performing +1-0=10, and qualified to the play-offs. In the quarter-finals, he defeated Ian Nepomniachtchi on Armageddon round after drawing all of their games. In the semifinals, Radjabov defeated Russian grandmaster Daniil Dubov, who had upset the current world chess champion and tournament favorite Magnus Carlsen in the quarter-finals. In the finals he defeated Levon Aronian in two sets, and was declared the winner of the Airthings Masters.