Distance From Kansai International Airport to St Louis Lambert International Airport, KIX - STL Distance

The distance from Kansai International Airport (KIX) to St Louis Lambert International Airport (STL) is 6600 miles or 10621 kilometers or 5731 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 Osaka ( Japan ) to St Louis ( United States )?

A one-way nonstop (direct) flight between Osaka and St Louis takes around 15 hours 10 minutes.

Estimated flight time from Kansai International Airport, Osaka, Japan to St Louis Lambert International Airport, St Louis, United States is 15 hours 10 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 • KIX - STL

Kilometers		10621 km
Statute Miles		6600 miles
Nautical Miles		5731 nm
Avg. Time of Flight		15 hours 10 minutes

Kansai International Airport to St Louis Lambert International Airport Flight Route Map - KIX to STL Flight Path

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

Click to see flight route on Google Map between Osaka, Japan and St Louis, United States. .

Nonstop flight route between Osaka, Japan and St Louis, United States.

Time Difference Between the Airports • KIX - STL

Time difference between Osaka (Japan) and St Louis (United States) is 13 Hours.
St Louis time is 13 Hours behind Osaka.

Location	Local Time
Osaka (Japan)	2026-09-19, 07:58:25 JST
St Louis (United States)	2026-09-18, 18:58:25 EDT

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

Kansai International Airport (KIX / RJBB) Osaka, Japan

Destination

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