Distance From St Marys Municipal Airport to Singapore Changi Airport, STQ - SIN Distance

The distance from St Marys Municipal Airport (STQ) to Singapore Changi Airport (SIN) is 9478 miles or 15253 kilometers or 8231 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 St Marys ( United States ) to Singapore ( Singapore )?

A one-way nonstop (direct) flight between St Marys and Singapore takes around 21 hours 47 minutes.

Estimated flight time from St Marys Municipal Airport, St Marys, United States to Singapore Changi Airport, Singapore, Singapore is 21 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 • STQ - SIN

Kilometers		15253 km
Statute Miles		9478 miles
Nautical Miles		8231 nm
Avg. Time of Flight		21 hours 47 minutes

St Marys Municipal Airport to Singapore Changi Airport Flight Route Map - STQ to SIN Flight Path

Location of St Marys Municipal Airport & Singapore Changi Airport is given below.
Click the map to view St Marys to Singapore nonstop flight path and travel direction.

Click to see flight route on Google Map between St Marys, United States and Singapore, Singapore. .

Nonstop flight route between St Marys, United States and Singapore, Singapore.

Time Difference Between the Airports • STQ - SIN

Time difference between St Marys (United States) and Singapore (Singapore) is 13 Hours.
Singapore time is 13 Hours ahead of St Marys.

Location	Local Time
St Marys (United States)	2025-12-05, 02:36:36 EST
Singapore (Singapore)	2025-12-05, 15:36:36 +08

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

St Marys Municipal Airport (STQ / KOYM) St Marys, United States

Destination

Singapore Changi Airport (SIN / WSSS) Singapore, Singapore