Cincinnati has a huge international airport, good real estate values, culture, sports venues, —and it’s share of race problems.
http://www.americanthinker.com/articles/2015/08/cincinnatis_race_problem.html
Really hard to find a city that is large enough to support and international airport and free of racial tensions.
The international airport can be on the edge of the city, and a neighboring area can benefit from it. Port Elizabeth in NJ is in this position; a large port, and closer to Newark airport than much of Newark is.