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How far is Ottawa from St Louis, MO?

The distance between St Louis (St. Louis Lambert International Airport) and Ottawa (Ottawa Macdonald–Cartier International Airport) is 880 miles / 1416 kilometers / 765 nautical miles.

The driving distance from St Louis (STL) to Ottawa (YOW) is 1023 miles / 1646 kilometers, and travel time by car is about 20 hours 10 minutes.

St. Louis Lambert International Airport – Ottawa Macdonald–Cartier International Airport

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880
Miles
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1416
Kilometers
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765
Nautical miles

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Distance from St Louis to Ottawa

There are several ways to calculate the distance from St Louis to Ottawa. Here are two standard methods:

Vincenty's formula (applied above)
  • 880.005 miles
  • 1416.231 kilometers
  • 764.703 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 878.572 miles
  • 1413.924 kilometers
  • 763.458 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from St Louis to Ottawa?

The estimated flight time from St. Louis Lambert International Airport to Ottawa Macdonald–Cartier International Airport is 2 hours and 9 minutes.

Flight carbon footprint between St. Louis Lambert International Airport (STL) and Ottawa Macdonald–Cartier International Airport (YOW)

On average, flying from St Louis to Ottawa generates about 142 kg of CO2 per passenger, and 142 kilograms equals 313 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from St Louis to Ottawa

See the map of the shortest flight path between St. Louis Lambert International Airport (STL) and Ottawa Macdonald–Cartier International Airport (YOW).

Airport information

Origin St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W
Destination Ottawa Macdonald–Cartier International Airport
City: Ottawa
Country: Canada Flag of Canada
IATA Code: YOW
ICAO Code: CYOW
Coordinates: 45°19′20″N, 75°40′9″W