Islamabad, Pakistan
| IATA Code | ISB |
|---|---|
| ICAO Code | OPIS |
| City | Islamabad |
| Country | Pakistan |
| Time Zone | Asia/Karachi |
| Coordinates | 33.5492, 72.8254 |
| Elevation | 1,761 ft / 537 m above sea level |
| State/Region | Punjab |
The same availability check looks different depending on the GDS in front of you. Here's the pattern for a generic search into ISB, using ISB as the destination:
Amadeus: AN15JULLHRISB Sabre: A15JUNLHRISB Galileo: A/15JUNLHRISB
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) | 6,052 km / 3,761 mi | ≈ 7.1h nonstop |
JFK (New York) | 11,083 km / 6,887 mi | ≈ 13.0h nonstop |
DXB (Dubai) | 1,923 km / 1,195 mi | ≈ 2.3h nonstop |
SIN (Singapore) | 4,830 km / 3,001 mi | ≈ 5.7h nonstop |
SYD (Sydney) | 11,089 km / 6,890 mi | ≈ 13.0h 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.
Dubai is the closest of the listed hubs to ISB, at roughly 2.3 hours nonstop, while Sydney is the furthest, at roughly 13.0 hours. When an itinerary routes a client through ISB 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 Islamabad is ISB — Islamabad International Airport.
Islamabad International Airport operates on Asia/Karachi time.
In a flight segment line, ISB appears as the three-letter origin or destination code, e.g. a route shown as ...ISB... in Amadeus, Sabre, Galileo, or Worldspan.
Of the reference hubs listed on this page, Dubai is the closest to ISB, at an estimated 2.3 hours nonstop flight time.
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