Distance From Thompson Falls Airport to Belfast International Airport, THM - BFS Distance

The distance from Thompson Falls Airport (THM) to Belfast International Airport (BFS) is 4261 miles or 6857 kilometers or 3700 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 Thompson Falls ( United States ) to Belfast ( United Kingdom )?

A one-way nonstop (direct) flight between Thompson Falls and Belfast takes around 9 hours 47 minutes.

Estimated flight time from Thompson Falls Airport, Thompson Falls, United States to Belfast International Airport, Belfast, United Kingdom is 9 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 • THM - BFS

Kilometers		6857 km
Statute Miles		4261 miles
Nautical Miles		3700 nm
Avg. Time of Flight		9 hours 47 minutes

Thompson Falls Airport to Belfast International Airport Flight Route Map - THM to BFS Flight Path

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

Click to see flight route on Google Map between Thompson Falls, United States and Belfast, United Kingdom. .

Nonstop flight route between Thompson Falls, United States and Belfast, United Kingdom.

Time Difference Between the Airports • THM - BFS

Time difference between Thompson Falls (United States) and Belfast (United Kingdom) is 6 Hours.
Belfast time is 6 Hours ahead of Thompson Falls.

Location	Local Time
Thompson Falls (United States)	2026-03-20, 10:46:12 MDT
Belfast (United Kingdom)	2026-03-20, 16:46:12 GMT

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

Thompson Falls Airport (THM / KTHM) Thompson Falls, United States

Destination

Belfast International Airport (BFS / EGAA) Belfast, United Kingdom