Houston, United States
| IATA Code | IAH |
|---|---|
| ICAO Code | KIAH |
| City | Houston |
| Country | United States |
| Time Zone | America/Chicago |
| Coordinates | 29.9902, -95.3368 |
| Elevation | 97 ft / 30 m above sea level |
| State/Region | Texas |
The same availability check looks different depending on the GDS in front of you. Here's the pattern for a generic search into IAH, using IAH as the destination:
Amadeus: AN15JULLHRIAH Sabre: A15JUNLHRIAH Galileo: A/15JUNLHRIAH
Swap in the actual origin code and date for a live search — the structure (date, then city pair) stays the same across systems.
Real, calculated straight-line distances (great-circle) and a rough nonstop flight-time estimate:
| Hub | Distance | Est. Flight Time |
|---|---|---|
LHR (London) | 7,763 km / 4,824 mi | ≈ 9.1h nonstop |
JFK (New York) | 2,277 km / 1,415 mi | ≈ 2.7h nonstop |
DXB (Dubai) | 13,124 km / 8,155 mi | ≈ 15.4h nonstop |
SIN (Singapore) | 15,970 km / 9,924 mi | ≈ 18.8h nonstop |
SYD (Sydney) | 13,836 km / 8,598 mi | ≈ 16.3h nonstop |
Flight time is a rough estimate based on typical long-haul cruise speed — actual routing, wind, and aircraft type will change the real duration.
New York is the closest of the listed hubs to IAH, at roughly 2.7 hours nonstop, while Singapore is the furthest, at roughly 18.8 hours. When an itinerary routes a client through IAH as a connection point rather than a final destination, it's worth confirming minimum connection time directly with the airport or airline — this varies by terminal and by whether the connection involves a change of airline alliance.
The main IATA airport code for Houston is IAH — George Bush Intercontinental Airport.
George Bush Intercontinental Airport operates on America/Chicago time.
In a flight segment line, IAH appears as the three-letter origin or destination code, e.g. a route shown as ...IAH... in Amadeus, Sabre, Galileo, or Worldspan.
Of the reference hubs listed on this page, New York is the closest to IAH, at an estimated 2.7 hours nonstop flight time.
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