It is the first Bengals home game in seven seasons to be blacked out, a string of 57 regular-season and playoff games that extends back to Nov. 9, 2003.
"Sales have been slow this week and not a lot of progress has been made. The pace has slowed considerably," ticket manager Andrew Brown told the Cincinnati Enquirer. "There's not a lot of momentum right now to move tickets in bulk."
Brown said the only remaining realistic sell-out is the Dec. 5 game against the defending champion New Orleans Saints. The Bengals also play host to the Cleveland Browns on Dec. 19, a matchup that has sold out every year since Paul Brown Stadium opened in 2000, and the San Diego Chargers on Dec. 26.
Meanwhile, the Jacksonville Jaguars have been granted a 24-hour extension to the NFL blackout deadline.
Jacksonville, which blacked out nine of 10 home games last season, sold enough tickets to its first five home games to avoid any blackouts.
Leaguewide, there have been 25 percent more blackouts than a season ago. Through 10 weeks, 15 games have been blacked out. A year ago there were 12 blackouts at this point.
The Associated Press contributed to this report.