Distance From Elstree Airfield to Mehrabad International Airport

The distance from Elstree Airfield () to Mehrabad International Airport (THR) is 2738 miles or 4406 kilometers or 2378 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 Watford ( United Kingdom ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between Watford and Tehran takes around 6 hours 17 minutes.

Estimated flight time from Elstree Airfield, Watford, United Kingdom to Mehrabad International Airport, Tehran, Iran is 6 hours 17 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 • - THR

Kilometers		4406 km
Statute Miles		2738 miles
Nautical Miles		2378 nm
Avg. Time of Flight		6 hours 17 minutes

Elstree Airfield to Mehrabad International Airport Flight Route Map - to THR Flight Path

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

Click to see flight route on Google Map between Watford, United Kingdom and Tehran, Iran. .

Nonstop flight route between Watford, United Kingdom and Tehran, Iran.

Time Difference Between the Airports • - THR

Time difference between Watford (United Kingdom) and Tehran (Iran) is 3 Hours 30 Minutes.
Tehran time is 3 Hours 30 Minutes ahead of Watford.

Location	Local Time
Watford (United Kingdom)	2025-01-16, 11:08:24 GMT
Tehran (Iran)	2025-01-16, 14:38:24 +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

Elstree Airfield ( / EGTR) Watford, United Kingdom

Destination

Mehrabad International Airport (THR / OIII) Tehran, Iran