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Houston Airport Informational Guide to George Bush Intercontinental Airport (IAH) - NON OFFICIAL

Our Review of Houston Airport (IAH)

Our Review of Houston Airport (IAH)

At Plan Your Trips, we have analyzed hundreds of airports around the world, gaining a clear understanding of what users expect when visiting an airport. With this know-how, we have created this guide, placing passengers at the forefront of everything, aiming to simplify and enhance the airport experience.

In this Guide,our goal is to present information in a manner that is both quick and reliable. Recognizing that passengers often have limited time and may be in a hurry, we strive to ensure that they do not waste time unnecessarily.

Another key focus of our guide is to highlight the strengths of the airport and also the weaknesses, and in some cases, offer recommendations to travelers. In alignment with this approach, we provide users with aggregated information on delays and on-time performance, analyzing both airlines and individual flights.

Pros and Cons of Houston Airport (IAH)


Prizes and Awards: Houston Airport has received some international awards, such as the Skytrax World Airport Awards in 2020 in the following categories: Top 100 Airports, Best Airport Dining, Best Airport Staff, World’s Best Website and Digital Services. It is rated 4 stars.

Destinations: Passengers will find routes to domestic and international destinations. It covers 5 continents.
 Services and entertainment offer: Houston IAH is the perfect airport where to spend some time while waiting for your flight. Its restaurants, gastronomic offer and shops are on the top of the list.


 Location: The Airport is located 23 miles (37 km) from Downtown Houston. With the traffic existing in the area, it takes some time to get to downtown.

Public Transport Connectivity: Although various transport services are available, the frequency and convenience of public transport to and from the airport might not meet the expectations. We recommend private transportation or taxi and transfer.

Mini-Guide of the Airport (2' Guide)

- There are five terminals: Terminal A, B, C, D and E. It is not possible to walk between terminals, and sometimes the connection between them is not optimum. Be aware of which terminal your flight departs from.

- Transport to and from Houston: Houston Airport offers a wide range of transportation options. However, public transportation is usually slow. Best options to move around are taxis and transfers.

- Check-in Areas: Check-in areas in Houston IAH Airport are located just inside the main buildings at the terminals.

Terminal A: Level 2

This is the check-in and departures area.

Terminal B:  Level 2

Departures and check-in level.

Terminal C: Level 2

This is the ticketing and departures area.

Terminal D: Level 1

It has ticketing and check-in as well as Arrivals area in that level.

Terminal E: Level 2

This is the departures and check-in level. It has gates from E1 to E24.

Connection between terminals: All five terminals at Houston Airport are connected by an underground train (Subway) and the Skyway (elevated train).Skyway connects all five temrinals airside. Landside passengers can use the subway.
Passengers will also find hotels, retails shops and a huge offer of restaurants.
- You can choose your preferred lounge from the more of 14 different options located throughout the airport. Expect to find food, refreshments, and a nice seating area while waiting for your flight.

How we calculate On Time Performance

On various pages of our website, you will encounter a metric widely utilized in aviation and other forms of transportation known as OTP (On Time Performance). We believe that providing this metric assists passengers in planning their trips and exploring alternatives before purchasing their flight tickets.

We calculate the On Time Performance for all flights and airlines, when we have enough data to do so. In certain instances, it may not be feasible to accurately compute the On-Time Performance for a specific flight or airline due to inadequate or non-representative data, which could result in misleading conclusions.

Our calculation of On Time Performance and delay information solely relies on arrival times. This approach is chosen over calculating departure delays, as we consider arrival punctuality to be of primary concern to passengers.

The On Time Performance displayed on our website is calculated as follows:

  • On Time: Flights that arrive within 15 minutes of their scheduled arrival time, or earlier. In the absence of data for a specific flight, we assume the flight arrives on time, to avoid penalizing airlines for data unavailability.
  • Moderate Delay: Flights that arrive with a delay of 15 to 30 minutes.
  • Significant Delay: Flights that arrive with a delay of 30 to 60 minutes.
  • Major Delay: Flights that arrive with a delay exceeding 60 minutes.
  • Average Delay: The average delay is calculated by considering flights that arrive early as having a delay of 0 minutes. Early arrivals do not contribute to reducing the average delay calculation

Some Stats

Annual Passengers Evolution

Airlines with more flight operations (last 3 months)

United Airlines

69% (Total flights analyzed: 32767)


5% (Total flights analyzed: 2395)

American Airlines

5% (Total flights analyzed: 2362)

Delta Air Lines

4% (Total flights analyzed: 2049)

Southwest Airlines

3% (Total flights analyzed: 1211)

Airlines with best on-time performance at Houston Airport (last 3 months)

Considering all airlines:

Volaris El Salvador

98% (Total flights analyzed: 48)


92% (Total flights analyzed: 224)

Viva Aerobus

92% (Total flights analyzed: 410)


92% (Total flights analyzed: 272)


86% (Total flights analyzed: 90)

All Nippon Airways - ANA

84% (Total flights analyzed: 90)

Considering only airlines with more than 10 flights/week:

Viva Aerobus

92% (Total flights analyzed: 410)


92% (Total flights analyzed: 224)


92% (Total flights analyzed: 272)

Turkish Airlines

81% (Total flights analyzed: 183)

United Airlines

79% (Total flights analyzed: 32767)

Delta Air Lines

77% (Total flights analyzed: 2049)

Qatar Airways

75% (Total flights analyzed: 124)

Alaska Airlines

74% (Total flights analyzed: 210)

Southwest Airlines

72% (Total flights analyzed: 1211)

Routes with more flights from Houston Airport (last month)

Dallas - DFW (United States of America): 653
Chicago - ORD (United States of America): 475
Los Angeles - LAX (United States of America): 455
Denver - DEN (United States of America): 452
Atlanta - ATL (United States of America): 447
Las Vegas - LAS (United States of America): 374
New York - LGA (United States of America): 373
Newark - EWR (United States of America): 310
Orlando - MCO (United States of America): 305
Miami - MIA (United States of America): 288