Istanbul Airport ranks first for international connectivity for the first time, toppling the long-held assumption that the Middle East is the world's foremost connecting region, according to OAG's Megahubs report covering September 2025 to August 2026.

The finding is the headline of the annual index, which ranks the Top 50 international airports using a connectivity measure built from multiple factors, including each airport's activity on its busiest day in the period. CAPA – Centre for Aviation adds commentary in an analysis focused on the Top 20.

Dubai, long the poster child of hub-and-spoke dominance, misses the Top 20 entirely, ranking 31st. OAG's data implies that connectivity leadership cannot be reduced to a single powerful airline operating a concentrated network. Other structural factors feed the index, and Dubai's position reflects that arithmetic rather than a collapse in its operations.

What does the new ranking show?

Asia Pacific leads the table overall. China has recovered from the effects of the COVID-19 pandemic, and Kuala Lumpur posts a notably strong performance within the region.

Europe's legacy hubs, described by CAPA as "old stagers," still hold positions in the upper tier. In North America, Chicago O'Hare has the third-widest connectivity reach of any airport in the index.

Among the biggest movers:

• Guangzhou records the largest gain and re-enters the table six years after its "annus mirabilis" in 2020, when it briefly topped global connectivity as other markets shut down.
• Bogotá El Dorado continues to rise, overshadowing the two best-known Latin American airports.
• Frankfurt falls furthest, dragged down by what CAPA calls an "unholy trilogy" of location costs, Lufthansa capacity cuts and operational bottlenecks.

Why does the low-cost share matter?

The report highlights that at a growing number of airports, low-cost flights and the connections they add to total connectivity can no longer be overlooked. Airports that have integrated budget carriers into their connecting traffic, rather than treating them as point-to-point outliers, gain measurable index ground.

That dynamic helps explain part of the rebalancing toward Asia Pacific, where low-cost penetration is deepest and where Chinese capacity has rebuilt fastest since the pandemic.

What are the consequences for hubs and airlines?

For Istanbul, the number-one position marks a structural milestone: a hub outside the traditional Gulf triangle now defines the global connectivity benchmark. For Dubai, a 31st place is less a verdict on Emirates than evidence that the index rewards breadth of connections across carriers and days, not just the scale of one operator's banked waves.

Frankfurt's decline carries the clearest cost signal in the report. High location charges, network retrenchment by its dominant carrier and throughput constraints compound into lost connectivity, a combination that airport operators elsewhere will read as a cautionary case.

Guangzhou's return after six years confirms that the Chinese hub system has moved past post-pandemic recovery and is again competitive on international connection volume.

Whether Istanbul can defend the top spot in the next index cycle will depend on sustaining the densest-day activity levels that drove this result, as Asia Pacific airports — led by recovering Chinese capacity and Kuala Lumpur — continue to climb.