Spirit Airlines is at it again with another topical and cheeky advertisement, this time playing off the Justin Bieber paternity allegations.

The airline’s new “Who’s Your Daddy?” campaign advertises low fares “Justin time for the holidays.”

Unlike Bieber’s alleged blink-and-it’s-over tryst in a Staples Center bathroom, this promotion will last a bit longer.

“This sale is sure to last longer than 30 seconds but don’t take any chances, book your flight today!” the ad states.

Bieber has denied he fathered 19-year-old Mariah Yeater’s child and said he has never met Yeater.

“Every rumor and lie about me possible has been coming out,” Biener tweeted today. “Just need to ignore.”

The 17-year-old singer will take a DNA test when he returns to the United States from Europe, where he is on business, and then he will likely file suit against the woman, according to his representative.

 ABC News’ Dead Schabner and Sheila Marikar contributed to this report.