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IAH to ISB: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Islamabad (New Islamabad International Airport)
7,979 mi
12,841 km · 6,934 nm
16h 7m
estimated nonstop flight time
—
time difference · heading north
See live IAH→ISB fares Phone-only fares on this route — call free
Flight time details
7,979 miles nonstop takes roughly 16h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- ISB — New Islamabad International Airport · Islamabad, Pakistan
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Near ISB
- ATG · Minhas Air Base34 mi away
- XJM · Mangla Airport58 mi away
- RAZ · Rawalakot Airport58 mi away
- MFG · Muzaffarabad Airport66 mi away
Frequently asked questions
How far is IAH from ISB?
The flight distance from Houston (IAH) to Islamabad (ISB) is 7,979 miles (12,841 km, 6,934 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to ISB?
A nonstop flight takes about 16h 7m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from IAH to ISB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–ISB that never appear on search engines, with no booking fees.