Distance From Harry Reid International Airport to Mehrabad International Airport, LAS - THR Distance

The distance from Harry Reid International Airport (LAS) to Mehrabad International Airport (THR) is 7402 miles or 11912 kilometers or 6428 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 Las Vegas ( United States ) to Tehran ( Iran )?

A one-way nonstop (direct) flight between Las Vegas and Tehran takes around 17 hours 1 minutes.

Estimated flight time from Harry Reid International Airport, Las Vegas, United States to Mehrabad International Airport, Tehran, Iran is 17 hours 1 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 • LAS - THR

Kilometers		11912 km
Statute Miles		7402 miles
Nautical Miles		6428 nm
Avg. Time of Flight		17 hours 1 minutes

Harry Reid International Airport to Mehrabad International Airport Flight Route Map - LAS to THR Flight Path

Location of Harry Reid International Airport & Mehrabad International Airport is given below.
Click the map to view Las Vegas to Tehran nonstop flight path and travel direction.

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

Nonstop flight route between Las Vegas, United States and Tehran, Iran.

Time Difference Between the Airports • LAS - THR

Time difference between Las Vegas (United States) and Tehran (Iran) is 11 Hours 30 Minutes.
Tehran time is 11 Hours 30 Minutes ahead of Las Vegas.

Location	Local Time
Las Vegas (United States)	2025-12-16, 23:21:38 PST
Tehran (Iran)	2025-12-17, 10:51:38 +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

Harry Reid International Airport (LAS / KLAS) Las Vegas, United States

Destination

Mehrabad International Airport (THR / OIII) Tehran, Iran