Distance From Qazvin Airport to George Bush Intercontinental Houston Airport, GZW - IAH Distance

The distance from Qazvin Airport (GZW) to George Bush Intercontinental Houston Airport (IAH) is 7340 miles or 11812 kilometers or 6374 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 Qazvin ( Iran ) to Houston ( United States )?

A one-way nonstop (direct) flight between Qazvin and Houston takes around 16 hours 52 minutes.

Estimated flight time from Qazvin Airport, Qazvin, Iran to George Bush Intercontinental Houston Airport, Houston, United States is 16 hours 52 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 • GZW - IAH

Kilometers		11812 km
Statute Miles		7340 miles
Nautical Miles		6374 nm
Avg. Time of Flight		16 hours 52 minutes

Qazvin Airport to George Bush Intercontinental Houston Airport Flight Route Map - GZW to IAH Flight Path

Location of Qazvin Airport & George Bush Intercontinental Houston Airport is given below.
Click the map to view Qazvin to Houston nonstop flight path and travel direction.

Click to see flight route on Google Map between Qazvin, Iran and Houston, United States. .

Nonstop flight route between Qazvin, Iran and Houston, United States.

Time Difference Between the Airports • GZW - IAH

Time difference between Qazvin (Iran) and Houston (United States) is 9 Hours 30 Minutes.
Houston time is 9 Hours 30 Minutes behind Qazvin.

Location	Local Time
Qazvin (Iran)	2025-12-16, 15:45:20 +0330
Houston (United States)	2025-12-16, 06:15:20 CST

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

Qazvin Airport (GZW / OIIK) Qazvin, Iran

Destination

George Bush Intercontinental Houston Airport (IAH / KIAH) Houston, United States