Distance From Gachsaran Airport to Tribhuvan International Airport, GCH - KTM Distance

The distance from Gachsaran Airport (GCH) to Tribhuvan International Airport (KTM) is 2086 miles or 3358 kilometers or 1812 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 Gachsaran ( Iran ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Gachsaran and Kathmandu takes around 4 hours 47 minutes.

Estimated flight time from Gachsaran Airport, Gachsaran, Iran to Tribhuvan International Airport, Kathmandu, Nepal is 4 hours 47 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 • GCH - KTM

Kilometers		3358 km
Statute Miles		2086 miles
Nautical Miles		1812 nm
Avg. Time of Flight		4 hours 47 minutes

Gachsaran Airport to Tribhuvan International Airport Flight Route Map - GCH to KTM Flight Path

Location of Gachsaran Airport & Tribhuvan International Airport is given below.
Click the map to view Gachsaran to Kathmandu nonstop flight path and travel direction.

Click to see flight route on Google Map between Gachsaran, Iran and Kathmandu, Nepal. .

Nonstop flight route between Gachsaran, Iran and Kathmandu, Nepal.

Time Difference Between the Airports • GCH - KTM

Time difference between Gachsaran (Iran) and Kathmandu (Nepal) is 2 Hours 15 Minutes.
Kathmandu time is 2 Hours 15 Minutes ahead of Gachsaran.

Location	Local Time
Gachsaran (Iran)	2026-10-31, 11:20:34 +0330
Kathmandu (Nepal)	2026-10-31, 13:35:34 +0545

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

Gachsaran Airport (GCH / OIAH) Gachsaran, Iran

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal