The Kansas City Chiefs have the second-most amount of salary cap space in the NFL, according to Mike Florio at ProFootballTalk.
Florio's entire list can be found here. His calculation was made as such:
...based on the top 51 cap numbers for all players under contract. The calculation converts to entire 53-man roster plus all players on injured reserve and other reserve lists at the launch of the regular season.
The Chiefs have $26.6 million available under the salary cap, which only the Jaguars have topped at $28.7 million.
The number can be seen as a relative competitive advantage moving forward; the Chiefs have money to absorb in trades or free agency that, say, AFC West rival San Diego doesn't have at just $4.1 million under the cap. The Denver Broncos are $11.1 million under the cap, and the Oakland Raiders are $6 million under.
The Chiefs open their season Sunday at home against the Atlanta Falcons. The game kicks off at noon CT on Fox.