The Swansea Chairman Huw Jenkins has been told that the policing costs will cost an estimated £30,000 for the game that kicks off at 11:15am on Sunday week. Some £9,000 more than the Carling Cup tie in September.
Jenkins wanted to to raise adult tickets by £7.00 to £30.00 but reduce kids tickets from £4.00 to £2.00.
A letter sent from Swansea City to the Football League said: "We feel our only available option is to reluctantly raise admission prices for this fixture.
"Our normal price is £23 for adults and £4 for children, and our proposal for this fixture is to raise the adult price to £30 but reduce the child price to £2 - for both sets of fans.
"This way, an adult who ordinarily brings two children with him would only face an increase of £3.
"Unfortunately, Cardiff City has rejected our request on the basis that the majority of their travelling support will be single, or groups of, adults."
An e-mail back from a Football League official confirmed they could not raise the price for away fans.
It read: "Cardiff City have made clear that they wish the prices to remain as published at the start of the season, which they have a right to do.
"The league, therefore, would not be able to sanction an increase to the matchday price for both sets of supporters."
A Cardiff City spokesman confirmed the club had rejected the proposals.
He said: "We can confirm that Swansea City Football Club has approached the club to increase the ticket cost for the game on Sunday, November 30.
"We have rejected this offer."Cardiff City supporters already have to face an early start to get to Ninian Park to travel on organised coaches down to the Liberty Stadium.
The match is live on Sky TV. Tickets are now on sale to Ambassadors who have been to at least three selected away games.