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ISB to ONT: distance & flight time
Islamabad (New Islamabad International Airport) → Ontario (Ontario International Airport)
7,716 mi
12,418 km · 6,705 nm
15h 36m
estimated nonstop flight time
—
time difference · heading north
See live ISB→ONT fares Phone-only fares on this route — call free
Flight time details
7,716 miles nonstop takes roughly 15h 36m 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
- ISB — New Islamabad International Airport · Islamabad, Pakistan
- ONT — Ontario International Airport · Ontario, United States
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 ISB
- ATG · Minhas Air Base34 mi away
- XJM · Mangla Airport58 mi away
- RAZ · Rawalakot Airport58 mi away
- MFG · Muzaffarabad Airport66 mi away
Near ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is ISB from ONT?
The flight distance from Islamabad (ISB) to Ontario (ONT) is 7,716 miles (12,418 km, 6,705 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISB to ONT?
A nonstop flight takes about 15h 36m 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 ISB to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISB–ONT that never appear on search engines, with no booking fees.