Distance From Great Falls International Airport to Henri Coandă International Airport, GTF - OTP Distance

The distance from Great Falls International Airport (GTF) to Henri Coandă International Airport (OTP) is 5572 miles or 8967 kilometers or 4839 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.

---

How long does it take to travel from Great Falls ( United States ) to Bucharest ( Romania )?

A one-way nonstop (direct) flight between Great Falls and Bucharest takes around 12 hours 48 minutes.

Estimated flight time from Great Falls International Airport, Great Falls, United States to Henri Coandă International Airport, Bucharest, Romania is 12 hours 48 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 - OTP

Kilometers		8967 km
Statute Miles		5572 miles
Nautical Miles		4839 nm
Avg. Time of Flight		12 hours 48 minutes

Great Falls International Airport to Henri Coandă International Airport Flight Route Map - GTF to OTP Flight Path

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

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

Nonstop flight route between Great Falls, United States and Bucharest, Romania.

Time Difference Between the Airports • GTF - OTP

Time difference between Great Falls (United States) and Bucharest (Romania) is 9 Hours.
Bucharest time is 9 Hours ahead of Great Falls.

Location	Local Time
Great Falls (United States)	2025-12-16, 02:41:51 MST
Bucharest (Romania)	2025-12-16, 11:41:51 EET

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

Henri Coandă International Airport (OTP / LROP) Bucharest, Romania