Distance From Rainbow Ranch Airport to Tribhuvan International Airport

The distance from Rainbow Ranch Airport () to Tribhuvan International Airport (KTM) is 7403 miles or 11913 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 Idaho Falls ( United States ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Idaho Falls and Kathmandu takes around 17 hours 1 minutes.

Estimated flight time from Rainbow Ranch Airport, Idaho Falls, United States to Tribhuvan International Airport, Kathmandu, Nepal 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 • - KTM

Kilometers		11913 km
Statute Miles		7403 miles
Nautical Miles		6428 nm
Avg. Time of Flight		17 hours 1 minutes

Rainbow Ranch Airport to Tribhuvan International Airport Flight Route Map - to KTM Flight Path

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

Click to see flight route on Google Map between Idaho Falls, United States and Kathmandu, Nepal. .

Nonstop flight route between Idaho Falls, United States and Kathmandu, Nepal.

Time Difference Between the Airports • - KTM

Time difference between Idaho Falls (United States) and Kathmandu (Nepal) is 11 Hours 45 Minutes.
Kathmandu time is 11 Hours 45 Minutes ahead of Idaho Falls.

Location	Local Time
Idaho Falls (United States)	2026-06-21, 12:06:02 MDT
Kathmandu (Nepal)	2026-06-21, 23:51:02 +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

Rainbow Ranch Airport ( / ID87) Idaho Falls, United States

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal