Need help booking?
Unpublished phone-only deals available
ONT to IKA: distance & flight time
Ontario (Ontario International Airport) → Tehran (Imam Khomeini International Airport)
7,582 mi
12,202 km · 6,589 nm
15h 20m
estimated nonstop flight time
+10.5h
time difference · heading north
See live ONT→IKA fares Phone-only fares on this route — call free
Flight time details
7,582 miles nonstop takes roughly 15h 20m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- IKA — Imam Khomeini International Airport · Tehran, Iran
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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near IKA
- THR · Mehrabad International Airport21 mi away
- PYK · Payam International Airport31 mi away
- GZW · Qazvin Airport84 mi away
- NSH · Noshahr Airport88 mi away
Frequently asked questions
How far is ONT from IKA?
The flight distance from Ontario (ONT) to Tehran (IKA) is 7,582 miles (12,202 km, 6,589 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to IKA?
A nonstop flight takes about 15h 20m 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 time difference between Ontario and Tehran?
Tehran is 10.5 hours ahead of Ontario.
What is the cheapest way to fly from ONT to IKA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–IKA that never appear on search engines, with no booking fees.