List of the busiest airports in the Balkans
The following list is for all of the countries to occupy Balkan territory with the exception of and , the information contained is for all airports on those territories.
Sometimes the European part of is considered part of the Balkan Peninsula. The Istanbul Atatürk Airport is located there. It had 67,981,446 passengers in 2018, placing it on the top spot in the list. The ( ) Romanian airports that are considered to be on the Balkan Peninsula are Mihail Kogălniceanu International Airport in Constanța and Tulcea Airport in Tulcea. They have respectively 129,235 and 158 passenger traffic.
Eurosphere
According to Mark Leonard, the Eurosphere includes 109 countries. In Europe, this includes the 28 member states of the EU, applicant countries wishing to join the EU, the Western Balkans, and European Commonwealth of Independent States countries (including Armenia, Belarus, Georgia, Moldova, Ukraine, and transcontinental Kazakhstan). Curiously he does not mention Western European countries such as Norway who are already integrated into the EU's single market. Outside Europe, he lists every African country and every Middle Eastern country, as well as the countries forming the eastern border of the Eurosphere such as Iran, Azerbaijan, Russia, and Central Asia.