Distance From London Gatwick Airport to Mehrabad International Airport, LGW - THR Distance

The distance from London Gatwick Airport (LGW) to Mehrabad International Airport (THR) is 2731 miles or 4394 kilometers or 2371 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 London ( United Kingdom ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between London and Tehran takes around 6 hours 16 minutes.

Estimated flight time from London Gatwick Airport, London, United Kingdom to Mehrabad International Airport, Tehran, Iran is 6 hours 16 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 • LGW - THR

Kilometers		4394 km
Statute Miles		2731 miles
Nautical Miles		2371 nm
Avg. Time of Flight		6 hours 16 minutes

London Gatwick Airport to Mehrabad International Airport Flight Route Map - LGW to THR Flight Path

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

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

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

Time Difference Between the Airports • LGW - THR

Time difference between London (United Kingdom) and Tehran (Iran) is 2 Hours 30 Minutes.
Tehran time is 2 Hours 30 Minutes ahead of London.

Location	Local Time
London (United Kingdom)	2026-06-21, 18:44:09 BST
Tehran (Iran)	2026-06-21, 21:14:09 +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

London Gatwick Airport (LGW / EGKK) London, United Kingdom

Destination

Mehrabad International Airport (THR / OIII) Tehran, Iran