Distance From Stephenville Clark Regional Airport to Imam Khomeini International Airport, SEP - IKA Distance

The distance from Stephenville Clark Regional Airport (SEP) to Imam Khomeini International Airport (IKA) is 7359 miles or 11843 kilometers or 6391 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Stephenville ( United States ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between Stephenville and Tehran takes around 16 hours 55 minutes.

Estimated flight time from Stephenville Clark Regional Airport, Stephenville, United States to Imam Khomeini International Airport, Tehran, Iran is 16 hours 55 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • SEP - IKA

Kilometers		11843 km
Statute Miles		7359 miles
Nautical Miles		6391 nm
Avg. Time of Flight		16 hours 55 minutes

Stephenville Clark Regional Airport to Imam Khomeini International Airport Flight Route Map - SEP to IKA Flight Path

Location of Stephenville Clark Regional Airport & Imam Khomeini International Airport is given below.
Click the map to view Stephenville to Tehran nonstop flight path and travel direction.

Click to see flight route on Google Map between Stephenville, United States and Tehran, Iran. .

Nonstop flight route between Stephenville, United States and Tehran, Iran.

Time Difference Between the Airports • SEP - IKA

Time difference between Stephenville (United States) and Tehran (Iran) is 10 Hours 30 Minutes.
Tehran time is 10 Hours 30 Minutes ahead of Stephenville.

Location	Local Time
Stephenville (United States)	2025-12-17, 23:11:20 MST
Tehran (Iran)	2025-12-18, 09:41:20 +0330

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Stephenville Clark Regional Airport (SEP / KSEP) Stephenville, United States

Destination

Imam Khomeini International Airport (IKA / OIIE) Tehran, Iran