The PGA of America will provide the resources for Woods' caddie, Steve Williams, Stewart Cink's caddie, Frank Williams, and Rickie Fowler's caddie, Joe Skovron, to fly business class to Europe for the biennial match play showdown.
"The original plane we had for Team USA was not able to fly," PGA of America spokesperson Julius Mason said. "We had to obtain an alternative plane, and the configuration of seats on the new plane did not allow to accommodate everyone in superior class seats."
US Ryder Cup captain Corey Pavin scotched suggestions the change in plan could dent the Americans' team unity.
"It's funny what people make of it," Pavin said. "When we play in the United States, everyone comes in separately. Just because we're going overseas doesn't mean we all have to go together."
The three caddies who were bumped were selected because their players are not competing this week in the US PGA Tour Championship in Atlanta, where the charter will depart on Sunday.
The Ryder Cup will be contested October 1-3 at Celtic Manor.
"It has actually worked out quite well," Pavin said. "The three caddies are spread throughout the land, and they can come over on a more direct flight and fly business class. It's easier for them to fly straight to Cardiff and get in that way, than fly to Atlanta and hang around. I spoke to all the guys, and they're fine. They understood.
"One of the neat things is that all 12 players are on the charter," he said. "That's the first time that's happened for some time."