The comedian said Wednesday that after just 45 hours, his tour has sold 100,000 tickets and taken in $4.5 million in sales. He's bypassing ticketing services like Ticketmaster to sell tickets only on his website.
On Monday, he began selling tickets for $45 without fees. His 39-city stand-up tour kicks off in October.
After announcing the results, he tweeted: "I guess it was a good idea."
Louis C.K. previously sold downloads to his special "Live at the Beacon" for $5, a move that was widely hailed and has since been imitated by other comics. It made more than $1 million in 12 days.
His FX show "Louie" debuts its third season Thursday.