The Chiefs had been among at least three teams that were a possible destination for Foles.
The Cowboysalso had discussions with the quarterback's agent as a possible replacement for the injured Kellen Moore.
The Minnesota Vikingswere also thought to be interested in Foles.
For his career, Foles has a 19-16 record with 53 touchdown passes and 27 interceptions. The Rams released him before training camp after being unable to swing a trade.
Information from ESPN's Todd Archer was used in this report.