Kirk along with United States Steelworkers president Leo Gerard will tour economic development sites surrounding the airport.
Ambassador Kirk serves on President Obama's cabinet as a principal trade advisor and negotiatior. He will speak briefly at the airport following the tour.
It is unclear if the tour will take the group to sites in Moon or Robinson. Allegheny County spokeswoman Amie Downs said she was unable to disclose the specific locations of the tour, though it will take place in the airport region.
U.S. Steel Corp. is rumored to be scouting new locations for its corporate headquarters, now located in downtown Pittsburgh.
Correction: This article has been corrected from its previous version. Leo Gerard is the president of United Steelworkers, not U.S. Steel, as previously reported.