UFC 307: Pereira vs. Rountree Jr. was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on October 5, 2024, at the Delta Center in Salt Lake City, Utah, United States.

[2] The event marked the promotion's fourth visit to Salt Lake City and first since UFC 291 in July 2023.

[12] However, Landwehr withdrew from the bout for unknown reasons and was replaced by Alexander Hernandez on short notice.

[13] A featherweight bout between former UFC Bantamweight Champion Aljamain Sterling and Movsar Evloev was scheduled for this event.

[17] Mauricio Ruffy was expected to participate in a lightweight bout at the event, but the promotion wasn't able to find an opponent and he was pulled from the card.