Kevin Love added a season-high 25 for the hosts, while LeBron James scored 19, helping the Cavaliers to a 15-point lead by half time.
The Hawks had to play the entire second half without coach Mike Budenholzer after he was ejected for making contact with an official in the second quarter.
The Indiana Pacers picked up their fifth win in six outings by crushing the Milwaukee Bucks at Bankers Life Fieldhouse, moving them to 8-5 this season.
The sides were close throughout the first half, with the home side taking a four-point lead into the interval, but CJ Miles added 13 of his 21 points in the third quarter to ensure that the Pacers opened up a lead.
Jordan Hill kept the second-half pressure up for Indiana, adding 20 points off the bench, while Paul George and Monta Ellis were also heavily involved after the break.
A strong finish from the Miami Heat denied the Philadelphia 76ers their first win of the season, while handing the hosts an eighth win in 12 games so far.
The Sixers, who are now on a 24-game losing streak stretching back to last season, led by 17 points in the first half, and were still 11 up midway through the fourth quarter thanks to Nerlens Noel.
However, Hassan Whiteside led the comeback for the Heat, before Gerald Green put them ahead with just over a minute remaining, condemning Philadelphia to a 14-0 start to the campaign.
The visitors' starters struggled to find their shooting form, but the Wizards added 51 points off the bench, with Nene and Ramon Sessions combining for 32 to keep the side ahead late on.
Results in full: Sacramento Kings 97-91 Orlando Magic, Milwaukee Bucks 86-123 Indiana Pacers, Atlanta Hawks 97-109 Cleveland Cavaliers, Washington Wizards 97-95 Detroit Pistons, Philadelphia 76ers 91-96 Miami Heat, New York Knicks 107-102 Houston Rockets, Memphis Grizzlies 82-92 San Antonio Spurs