One of United Airlines IAH Terminal biggest hubs is George Bush Intercontinental Airport (IAH), specifically Terminals B, C, and E. These terminals provide smooth connections for both domestic and international flights and are built with efficiency and convenience in mind. Numerous facilities are available to travelers, such as dining options, retail stores, and cozy seating places. The check-in desks and kiosks for United Airlines are positioned thoughtfully across these terminals to ensure a seamless and trouble-free beginning to your trip. To guarantee a stress-free travel experience, passengers are advised to arrive at least two hours before to domestic flights and three hours prior to international flights.