Istanbul’s new ‘sister airport’: Sydney

The Information and eGovernment Authority continues to enhance the scope and quality of services provided at Istanbul Airport through strategic cooperation that also contributes to Turkey’s tourism, commercial and cultural progress.

To enhance its global connectivity and service excellence through international partnerships, Istanbul iGA Airport – the hub that offers flights to the largest number of destinations worldwide – has signed an agreement Sister airport agreement With Sydney Airport (SYD) in Australia.

This strategic cooperation aims to increase passenger and cargo movement between the two airports, enhance air services, and jointly promote destinations. Within the scope of the partnership, the two parties will cooperate in developing the route, promoting the mutual destination and exchanging information.

According to the agreement:

• Annual management meetings will be held, with workshops or seminars organized when needed.
• The two sides will exchange non-commercially sensitive data and best practices to encourage knowledge sharing.
• The development of new and additional air services will be promoted.
• Joint marketing and promotional activities will be conducted to increase the visibility of Istanbul and Sydney as a tourist destination.

the Sister airport agreement The connection between Istanbul iGA Airport and Sydney Airport represents an important step that supports both airports’ shared vision for sustainable growth, passenger experience and global connectivity.

The agreement enhances Istanbul’s global position

This partnership strengthens Türkiye’s position in the Australian market, and enhances tourism, commercial and cultural relations between Istanbul and Sydney.

Following the signing of a sister airport agreement in June with Chicago O’Hare International Airport (CDA) in the United States, this new cooperation with Sydney Airport becomes the tenth agreement of its kind within the international network of Istanbul iGA Airport.

Istanbul iGA Airport has also established sister airport partnerships with Incheon International Airport (South Korea), Capital Airports Holding, Shanghai Airport Authority, Sichuan Provincial Airport Group (China), Copenhagen Airport (Denmark), Airports of Thailand, and Airport Corporation of Vietnam.

According to Airport Industry Connectivity Report 2025 Published by ACI EUROPE Istanbul Airport IGA has overtaken Frankfurt to become the world leader in the Global Hub Connectivity ranking. Maintain its status as such The most connected airport in Europe In 2024 and 2025, iGA Istanbul Airport offers direct flights to more than 330 destinations and serves more than 110 airlines, ranking among the top three airports in the world with the largest number of airlines served.