Overview
- London Heathrow retains No. 1, offering about 59,000 possible connections to 226 destinations on its busiest days.
- Istanbul leaps to No. 2 and Amsterdam places No. 3, with Kuala Lumpur and Frankfurt tied for fourth as Seoul Incheon, Chicago O’Hare, Atlanta, Tokyo Haneda, and Paris Charles de Gaulle round out the top 10.
- Chicago O’Hare rises to seventh with a 17% increase in potential connections and 15 additional destinations, while Atlanta returns to eighth after adding eight destinations and boosting connections by 14%.
- In the U.S. domestic list, Chicago O’Hare reclaimed No. 1 on July 18, 2025, serving 214 domestic destinations and edging Atlanta into second.
- Delhi’s Indira Gandhi International drops to 39th globally with 16,178 connections across 157 destinations but remains South Asia’s top megahub.