The teams were charged by the Football Association following an incident during their 1-1 draw at the Liberty Stadium on 9 December.
A fracas occurred in the 80th-minute involving Hull's Tom Huddlestone and Yannick Sagbo, and Swansea's Ashley Williams.
Sagbo and Williams were both booked after the incident following an altercation, and Swansea midfielder Jonjo Shelvey was also shown a yellow card by referee Martin Atkinson.
Both clubs admitted a charge of failing to ensure that their players conducted themselves in an orderly fashion.
The game had been the first Premier League match between the two sides.