Distance From Fort Smith Regional Airport to Imam Khomeini International Airport, FSM - IKA Distance

The distance from Fort Smith Regional Airport (FSM) to Imam Khomeini International Airport (IKA) is 7068 miles or 11374 kilometers or 6138 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 Fort Smith ( United States ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between Fort Smith and Tehran takes around 16 hours 14 minutes.

Estimated flight time from Fort Smith Regional Airport, Fort Smith, United States to Imam Khomeini International Airport, Tehran, Iran is 16 hours 14 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 • FSM - IKA

Kilometers		11374 km
Statute Miles		7068 miles
Nautical Miles		6138 nm
Avg. Time of Flight		16 hours 14 minutes

Fort Smith Regional Airport to Imam Khomeini International Airport Flight Route Map - FSM to IKA Flight Path

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

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

Nonstop flight route between Fort Smith, United States and Tehran, Iran.

Time Difference Between the Airports • FSM - IKA

Time difference between Fort Smith (United States) and Tehran (Iran) is 7 Hours 30 Minutes.
Tehran time is 7 Hours 30 Minutes ahead of Fort Smith.

Location	Local Time
Fort Smith (United States)	2026-09-23, 19:18:05 EDT
Tehran (Iran)	2026-09-24, 02:48:05 +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

Fort Smith Regional Airport (FSM / KFSM) Fort Smith, United States

Destination

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