Leeds beat West Ham on penalties to book their spot at Wembley in the final four, with the semifinals set to take place across the weekend of April 25, when Daniel Farke's side was due to be heading to the south coast.
Now, their visit to the Vitality Stadium has been brought forward, and it will now take place on Wednesday, April 22, kick off at 8pm and it will be shown on Sky Sports.
Leeds will face Chelsea at Wembley the weekend after their game against Bournemouth.
Earlier this season, the sides drew 2-2 at Elland Road, with Junior Kroupi scoring his first goal for the club to snatch a point at the death.
Last time the Cherries hosted Leeds, they won 4-1 back in 2023.