George Bush Intercontinental Airport (IAH) July 2025 Operational Report

Flight Activity Overview

Total Departing Flights: 19,060

Year-over-Year Change in Departing Flights: 7.11%

In July 2025, George Bush Intercontinental Airport (IAH) handled 19,060 departures, a 7.11% year-over-year change as airlines optimized summer capacity in Houston. The hub’s schedule reflected steady demand across North America and Latin America. This growth supports IAH’s role as a key connector for the region.

On-Time Performance and Cancellations

Departure On-Time Performance: 64.97%

Year-over-Year Change in OTP: 23.14%

Cancelled Flights: 185

Year-over-Year Change in Cancellations: −86.33%

OTP at IAH improved to 64.97%, aided by schedule refinements and better day‑of‑operations recovery, though afternoon thunderstorms can still slow turns. Notably, cancellations fell to 185 (−86.33% YoY), reducing severe disruption for travelers. Ground handling and ATC coordination remain focus areas during peak banks.

Airlines Serving IAH

United Airlines (UA) anchors the hub with an extensive domestic and long‑haul network. Complementary service from carriers such as Air Canada (AC) and Lufthansa (LH) connects Houston to key Canadian and European gateways. The network offers broad coverage across North America, Latin America, and transatlantic markets.

Outlook

Over the next 4–8 weeks, the hub expects generally stable schedules with departure OTP near current levels; afternoon convection and weekend peaks may still cause pockets of delay. Passengers should favor morning departures and allow 60–90 minutes of buffer for security and tight connections, while monitoring real‑time gate and weather alerts.