Distance From Denis Island Airport to St Louis Lambert International Airport, DEI - STL Distance

The distance from Denis Island Airport (DEI) to St Louis Lambert International Airport (STL) is 9216 miles or 14832 kilometers or 8003 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 Denis Island ( Seychelles ) to St Louis ( United States )?

A one-way nonstop (direct) flight between Denis Island and St Louis takes around 21 hours 11 minutes.

Estimated flight time from Denis Island Airport, Denis Island, Seychelles to St Louis Lambert International Airport, St Louis, United States is 21 hours 11 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 • DEI - STL

Kilometers		14832 km
Statute Miles		9216 miles
Nautical Miles		8003 nm
Avg. Time of Flight		21 hours 11 minutes

Denis Island Airport to St Louis Lambert International Airport Flight Route Map - DEI to STL Flight Path

Location of Denis Island Airport & St Louis Lambert International Airport is given below.
Click the map to view Denis Island to St Louis nonstop flight path and travel direction.

Click to see flight route on Google Map between Denis Island, Seychelles and St Louis, United States. .

Nonstop flight route between Denis Island, Seychelles and St Louis, United States.

Time Difference Between the Airports • DEI - STL

Time difference between Denis Island (Seychelles) and St Louis (United States) is 9 Hours.
St Louis time is 9 Hours behind Denis Island.

Location	Local Time
Denis Island (Seychelles)	2026-01-29, 09:53:44 +04
St Louis (United States)	2026-01-29, 00:53:44 EST

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

Denis Island Airport (DEI / FSSD) Denis Island, Seychelles

Destination

St Louis Lambert International Airport (STL / KSTL) St Louis, United States