Air Miles Calculator

Distance between St Louis, MO (STL) and Ottawa (YOW)

Flight distance from St Louis to Ottawa (St. Louis Lambert International Airport – Ottawa Macdonald–Cartier International Airport) is 880 miles / 1416 kilometers / 765 nautical miles. Estimated flight time is 2 hours 9 minutes.

Driving distance from St Louis (STL) to Ottawa (YOW) is 1023 miles / 1646 kilometers and travel time by car is about 18 hours 59 minutes.

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

Shortest flight path between St. Louis Lambert International Airport (STL) and Ottawa Macdonald–Cartier International Airport (YOW).

How far is Ottawa from St Louis?

There are several ways to calculate distances between St Louis and Ottawa. Here are two common 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 earth.

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).

Airport information


A 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

B 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

Time difference and current local times

The time difference between St Louis and Ottawa is 1 hour. Ottawa is 1 hour ahead of St Louis.

Time Difference

St Louis, MO

 CDT

Ottawa

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 142 kg (313 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Ottawa (YOW).

Distance:
880
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
880

Round trip?