Distance From Great Falls International Airport to Juanda International Airport, GTF - SUB Distance

The distance from Great Falls International Airport (GTF) to Juanda International Airport (SUB) is 8646 miles or 13914 kilometers or 7508 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 Great Falls ( United States ) to Surabaya ( Indonesia )?

A one-way nonstop (direct) flight between Great Falls and Surabaya takes around 19 hours 52 minutes.

Estimated flight time from Great Falls International Airport, Great Falls, United States to Juanda International Airport, Surabaya, Indonesia is 19 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 • GTF - SUB

Kilometers		13914 km
Statute Miles		8646 miles
Nautical Miles		7508 nm
Avg. Time of Flight		19 hours 52 minutes

Great Falls International Airport to Juanda International Airport Flight Route Map - GTF to SUB Flight Path

Location of Great Falls International Airport & Juanda International Airport is given below.
Click the map to view Great Falls to Surabaya nonstop flight path and travel direction.

Click to see flight route on Google Map between Great Falls, United States and Surabaya, Indonesia. .

Nonstop flight route between Great Falls, United States and Surabaya, Indonesia.

Time Difference Between the Airports • GTF - SUB

Time difference between Great Falls (United States) and Surabaya (Indonesia) is 13 Hours.
Surabaya time is 13 Hours ahead of Great Falls.

Location	Local Time
Great Falls (United States)	2026-08-08, 10:17:08 MDT
Surabaya (Indonesia)	2026-08-08, 23:17:08 WIB

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

Great Falls International Airport (GTF / KGTF) Great Falls, United States

Destination

Juanda International Airport (SUB / WARR) Surabaya, Indonesia