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

Arrival Airport:

Distance from YOW to STL:
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- About this route
- YOW Airport Information
- STL Airport Information
- Facts about YOW
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- List of Furthest Airports from YOW
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- List of Furthest Airports from STL
About this route:
A direct, nonstop flight between Ottawa Macdonald–Cartier International Airport (YOW), Ottawa, Ontario, Canada and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States 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 Ottawa Macdonald–Cartier International Airport and Lambert–St. Louis International Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival 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 |
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 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.
- 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.
- On September 15, 1988, a Bradley Air Services BAe 748 crashed on approach to runway 25, killing both crew members.
- The south field consists of the two longer runways, 07/25 and 14/32, designed for jet airliners.
- Ottawa Macdonald–Cartier International Airport (YOW) has 3 runways.
- The 2011 it won Best Airport in North America of the Airport Service Quality Awards by Airports Council International, as well as 2nd Best Airport by Size in the 2 to 5 million passenger category.
- 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.
Facts about Lambert–St. Louis International Airport (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.
- The September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
- However, TWA faced increasing problems as overall airline demand softened in response to a softening overall economy.
- Lambert again grew in importance for TWA after the airline declared bankruptcy in 1993 and moved its headquarters to St.
- In September 2009, American Airlines announced that, as a part of the airline's restructuring, it would eliminate its St.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- 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.
- 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.