While U.S. airports often have chapels, many of them no longer display crosses or other symbols that would make them specific to a particular faith.
The chapel at Hartsfield-Jackson Atlanta International Airport features a silhouette of a person kneeling and a generic stained-glass window.
Atlanta's airport chaplain is a United Methodist, but has become a jack of all faiths. He says rosaries, yarmulkes, prayer shawls, and a Catholic Mass kit are tucked away for use as needed.