United Airlines' largest hub. United Airlines operates various routes to airports around the world. Until 2010, it was beloved as the hub of Continental Airlines, and when United and Continental merged in 2010 to become the unified United Airlines, it naturally acquired the Houston hub. At the same time, it established itself as United Airlines' largest hub, surpassing its headquarters in Chicago.


Continental Airlines made Newark its hub, concentrating flights to and from the New York area at Newark. Therefore, while there were flights from other airlines at JFK and LaGuardia airports, there were no Continental flights. And United, which succeeded Continental, reduced its presence at JFK and LaGuardia, concentrating more flights at Newark.

Due to the large number of passengers, long lines can often form at the airport. In such cases, if you pass through the security checkpoint at the adjacent terminal and then return to your original terminal, you can save a lot of time. There is a tram on the basement level of each terminal that connects to other terminals. You can board the tram to move to the adjacent terminal, pass through the security checkpoint, and then take the Skytrain back to your original terminal. The tram and Skytrain stop every 1 to 3 minutes.

Location
Located about 37 km (approximately 23 miles) north of downtown Houston
Accessible to the city via taxi, rental car, or shuttle bus

Consists of 5 terminals (A~E), with a train (TRAIN) system connecting the terminals for convenient transfers

A terminal is the terminal with the longest history, having started operations with the opening of the airport. It is used by American airlines other than United Airlines (Delta Airlines, American Airlines, etc.) and Air Canada.

B terminal is exclusively for United Express, a subsidiary of United Airlines that operates connecting flights to Texas cities and neighboring states.

C terminal is used for United Airlines' domestic flights and is large with good facilities. A statue of former President George Herbert Walker Bush is located in the middle of this terminal.

D terminal is where international flights from all foreign airlines, except Air Canada, such as Air France and Turkish Airlines, take off and land.

E terminal is the most recent terminal, opened in 2002, where United Airlines' international flights take off and land.
Exceptionally, United Express exclusively uses B terminal, while all other terminals (A/C/D/E) are also used.