Distance From Hermiston Municipal Airport to Mehrabad International Airport, HES - THR Distance

The distance from Hermiston Municipal Airport (HES) to Mehrabad International Airport (THR) is 6774 miles or 10902 kilometers or 5883 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 Hermiston ( United States ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between Hermiston and Tehran takes around 15 hours 34 minutes.

Estimated flight time from Hermiston Municipal Airport, Hermiston, United States to Mehrabad International Airport, Tehran, Iran is 15 hours 34 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 • HES - THR

Kilometers		10902 km
Statute Miles		6774 miles
Nautical Miles		5883 nm
Avg. Time of Flight		15 hours 34 minutes

Hermiston Municipal Airport to Mehrabad International Airport Flight Route Map - HES to THR Flight Path

Location of Hermiston Municipal Airport & Mehrabad International Airport is given below.
Click the map to view Hermiston to Tehran nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • HES - THR

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

Location	Local Time
Hermiston (United States)	2025-12-13, 18:26:37 MST
Tehran (Iran)	2025-12-14, 04:56:37 +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

Hermiston Municipal Airport (HES / KHRI) Hermiston, United States

Destination

Mehrabad International Airport (THR / OIII) Tehran, Iran