Nonstop flight route between Washington, D.C. / Virginia, United States and Ottawa, Ontario, Canada:
Departure Airport:
 
    Arrival Airport:
 
    Distance from IAD to YOW:
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- About this route
- IAD Airport Information
- YOW Airport Information
- Facts about IAD
- Facts about YOW
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
- Map of Nearest Airports to YOW
- List of Nearest Airports to YOW
- Map of Furthest Airports from YOW
- List of Furthest Airports from YOW
About this route:
A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Ottawa Macdonald–Cartier International Airport (YOW), Ottawa, Ontario, Canada would travel a Great Circle distance of 450 miles (or 724 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 Washington Dulles 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: | IAD / KIAD | 
| Airport Name: | Washington Dulles International Airport | 
| Location: | Washington, D.C. / Virginia, United States | 
| GPS Coordinates: | 38°56'39"N by 77°27'20"W | 
| Area Served: | Washington metropolitan area | 
| Airport Type: | Public | 
| Elevation: | 313 feet (95 meters) | 
| # of Runways: | 5 | 
| View all routes: | Routes from IAD | 
| More Information: | IAD 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 Washington Dulles International Airport (IAD):
- Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles 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.
- Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.
- The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
- The Metropolitan Washington Airports Authority has begun to gradually phase out the mobile lounge system for inter-terminal passenger movements in favor of the AeroTrain, an underground people mover which currently operates to Concourses A, B and C, and a pedestrian walkway system.
- Washington Dulles International Airport (IAD) has 5 runways.
- Since many major domestic and international airlines have a large presence at Washington Dulles, there are several airline lounges in active operation there.
- The C and D concourses, completed in 1983 and designed by Hellmuth, Obata and Kassabaum, were originally designed as a temporary base for United Airlines, which began hub operations at the airport in 1985.
Facts about Ottawa Macdonald–Cartier International Airport (YOW):
- On July 1, 1990, a P-51 Mustang crashed on the Hylands Golf Course during the National Capital Airshow, killing the pilot, Harry Tope.
- In August 1959, a U.S.
- Ottawa Macdonald–Cartier International Airport (YOW) has 3 runways.
- At the turn of the millennium, the Ottawa Airport Authority announced plans to build a second, adjacent terminal to meet the demands of increased traffic.
- 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.
- Non-stop and same-plane freighter flights
- The airport was originally opened at Uplands on a high plateau south of Ottawa by the Ottawa Flying Club, which still operates from the field.
- 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 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.




