Washington, United States
| IATA Code | IAD |
|---|---|
| ICAO Code | KIAD |
| City | Washington |
| Country | United States |
| Time Zone | America/New_York |
| Coordinates | 38.9531, -77.4565 |
| Elevation | 312 ft / 95 m above sea level |
| State/Region | Virginia |
The same availability check looks different depending on the GDS in front of you. Here's the pattern for a generic search into IAD, using IAD as the destination:
Amadeus: AN15JULLHRIAD Sabre: A15JUNLHRIAD Galileo: A/15JUNLHRIAD
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) | 5,902 km / 3,667 mi | ≈ 6.9h nonstop |
JFK (New York) | 366 km / 227 mi | ≈ 0.4h nonstop |
DXB (Dubai) | 11,355 km / 7,055 mi | ≈ 13.4h nonstop |
SIN (Singapore) | 15,530 km / 9,650 mi | ≈ 18.3h nonstop |
SYD (Sydney) | 15,681 km / 9,744 mi | ≈ 18.4h 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 IAD, at roughly 0.4 hours nonstop, while Sydney is the furthest, at roughly 18.4 hours. When an itinerary routes a client through IAD 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 Washington is IAD — Washington Dulles International Airport.
Washington Dulles International Airport operates on America/New_York time.
In a flight segment line, IAD appears as the three-letter origin or destination code, e.g. a route shown as ...IAD... in Amadeus, Sabre, Galileo, or Worldspan.
Of the reference hubs listed on this page, New York is the closest to IAD, at an estimated 0.4 hours nonstop flight time.
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