What is the flight distance between LHR and THR?

Distance between London Heathrow Airport (LHR) and Mehrabad Airport (THR) is 4415 kilometers or 2743 miles.

Distance From London Heathrow Airport to Mehrabad Airport (LHR - THR Distance)

Q: How long is the flight from LHR to THR?

Flight time from London Heathrow Airport, London, United Kingdom to Mehrabad Airport, Tehran, Iran is 5 hours 29 minutes under avarage conditions.

Q: What is the time difference between London, United Kingdom and Tehran, Iran?

Time difference between London (United Kingdom) and Tehran (Iran) is 3 Hours 30 Minutes. Tehran time is 3 Hours 30 Minutes ahead of London. It is currently 05:00 in London Heathrow Airport (LHR) and 08:30 in Mehrabad Airport (THR).

The flight distance from London Heathrow Airport (LHR) to Mehrabad Airport (THR) is 2743 miles. This is equivalent to 4415 kilometers or 2382 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

4415 kilometers is the distance from London Heathrow Airport, United Kingdom to Mehrabad Airport, Iran.

Flight Duration between London, United Kingdom and Tehran, Iran

Estimated flight time from London Heathrow Airport, London, United Kingdom to Mehrabad Airport, Tehran, Iran is 5 hours 29 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • LHR - THR

Time difference between London (United Kingdom) and Tehran (Iran) is 3 Hours 30 Minutes.
Current local time in London is 2025-12-20, 05:00:23 GMT and time in Tehran is 2025-12-20, 08:30:23 +0330.
Tehran time is 3 Hours 30 Minutes ahead of London.

London Heathrow Airport to Mehrabad Airport Flight Route Map - LHR to THR Flight Path

Location of London Heathrow Airport & Mehrabad 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.

London Heathrow Airport
City:	London
Country:	United Kingdom
IATA Code:	LHR
ICAO Code:	EGLL
GPS Coordinates:	Latitude: N 51° 28' 14.2'' Longitude: W 0° 27' 43''
Current time:	2025-12-20, 05:00:23 GMT
Current weather:	London Heathrow Airport 15 day weather forecast

Mehrabad Airport
City:	Tehran
Country:	Iran
IATA Code:	THR
ICAO Code:	OIII
GPS Coordinates:	Latitude: N 35° 41' 21.1'' Longitude: E 51° 18' 48.2''
Current time:	2025-12-20, 08:30:23 +0330
Current weather:	Mehrabad Airport 15 day weather forecast
Flights: