Distance From Simpson Field to Tribhuvan International Airport

The distance from Simpson Field () to Tribhuvan International Airport (KTM) is 8394 miles or 13509 kilometers or 7290 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 Picayune ( United States ) to Kathmandu ( Nepal )?

A one-way nonstop (direct) flight between Picayune and Kathmandu takes around 19 hours 17 minutes.

Estimated flight time from Simpson Field, Picayune, United States to Tribhuvan International Airport, Kathmandu, Nepal is 19 hours 17 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		13509 km
Statute Miles		8394 miles
Nautical Miles		7290 nm
Avg. Time of Flight		19 hours 17 minutes

Simpson Field to Tribhuvan International Airport Flight Route Map - to KTM Flight Path

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

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

Nonstop flight route between Picayune, United States and Kathmandu, Nepal.

Time Difference Between the Airports • - KTM

Time difference between Picayune (United States) and Kathmandu (Nepal) is 10 Hours 45 Minutes.
Kathmandu time is 10 Hours 45 Minutes ahead of Picayune.

Location	Local Time
Picayune (United States)	2025-12-14, 00:36:07 EST
Kathmandu (Nepal)	2025-12-14, 11:21:07 +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

Simpson Field ( / MS61) Picayune, United States

Destination

Tribhuvan International Airport (KTM / VNKT) Kathmandu, Nepal