Nonstop flight route between St. Louis, Missouri, United States and Ottawa, Ontario, Canada:
Departure Airport:

Arrival Airport:

Distance from STL to YOW:
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- About this route
- STL Airport Information
- YOW Airport Information
- Facts about STL
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- Map of Nearest Airports to STL
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- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- Map of Nearest Airports to YOW
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- List of Furthest Airports from YOW
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Ottawa Macdonald–Cartier International Airport (YOW), Ottawa, Ontario, Canada would travel a Great Circle distance of 878 miles (or 1,414 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Lambert–St. Louis International Airport and Ottawa Macdonald–Cartier International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | YOW / CYOW |
Airport Name: | Ottawa Macdonald–Cartier International Airport |
Location: | Ottawa, Ontario, Canada |
GPS Coordinates: | 45°19'20"N by 75°40'1"W |
Area Served: | Ottawa, Ontario |
Operator/Owner: | Transport Canada |
Airport Type: | Public |
Elevation: | 374 feet (114 meters) |
# of Runways: | 3 |
View all routes: | Routes from YOW |
More Information: | YOW Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- In September 2009, American Airlines announced that, as a part of the airline's restructuring, it would eliminate its St.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- To handle the increasing passenger traffic, Minoru Yamasaki was commissioned to design a new terminal at Lambert.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Ottawa Macdonald–Cartier International Airport (YOW):
- Because of Ottawa Macdonald–Cartier International Airport's relatively low elevation of 374 feet, planes can take off or land at Ottawa Macdonald–Cartier International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The airport actually consists of two distinct airfields connected by a taxiway.
- In February 2010, Ottawa Macdonald–Cartier International Airport was recognized by customers for its excellent customer service in the results of Airports Council International's Airport Service Quality program.
- The north field is still popular for general aviation, although only one of its runways, 04/22, is still in use.
- On May 19, 1967, an Air Canada Douglas DC-8 on a training flight from Montreal crashed on approach to the Ottawa airport, killing all three crew members.
- The furthest airport from Ottawa Macdonald–Cartier International Airport (YOW) is Margaret River Airport (MGV), which is located 11,465 miles (18,451 kilometers) away in Margaret River, Western Australia, Australia.
- Ottawa Macdonald–Cartier International Airport (YOW) has 3 runways.
- The closest airport to Ottawa Macdonald–Cartier International Airport (YOW) is Ottawa/Rockcliffe Airport (YRO), which is located only 10 miles (15 kilometers) N of YOW.
- On September 15, 1988, a Bradley Air Services BAe 748 crashed on approach to runway 25, killing both crew members.
- Ottawa/Macdonald–Cartier International Airport or Macdonald–Cartier International Airport, in Ottawa, Ontario, Canada is named after Sir John A.