Distance From UN Aviation Heliport to Don Mueang International Airport

The distance from UN Aviation Heliport () to Don Mueang International Airport (DMK) is 7648 miles or 12309 kilometers or 6642 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 ( Sierra Leone ) to Bangkok ( Thailand )?

A one-way nonstop (direct) flight between and Bangkok takes around 17 hours 35 minutes.

Estimated flight time from UN Aviation Heliport, , Sierra Leone to Don Mueang International Airport, Bangkok, Thailand is 17 hours 35 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 • - DMK

Kilometers		12309 km
Statute Miles		7648 miles
Nautical Miles		6642 nm
Avg. Time of Flight		17 hours 35 minutes

UN Aviation Heliport to Don Mueang International Airport Flight Route Map - to DMK Flight Path

Location of UN Aviation Heliport & Don Mueang International Airport is given below.
Click the map to view to Bangkok nonstop flight path and travel direction.

Click to see flight route on Google Map between , Sierra Leone and Bangkok, Thailand. .

Nonstop flight route between , Sierra Leone and Bangkok, Thailand.

Time Difference Between the Airports • - DMK

Time difference between (Sierra Leone) and Bangkok (Thailand) is 7 Hours.
Bangkok time is 7 Hours ahead of .

Location	Local Time
(Sierra Leone)	2026-06-13, 22:39:40 GMT
Bangkok (Thailand)	2026-06-14, 05:39:40 +07

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

UN Aviation Heliport ( / ) , Sierra Leone

Destination

Don Mueang International Airport (DMK / VTBD) Bangkok, Thailand