Nonstop flight route between between Baltimore, Maryland and Washington, D.C., United States and Sumter, South Carolina, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from BWI to SUM:
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- About this route
- BWI Airport Information
- SUM Airport Information
- Facts about BWI
- Facts about SUM
- Map of Nearest Airports to BWI
- List of Nearest Airports to BWI
- Map of Furthest Airports from BWI
- List of Furthest Airports from BWI
- Map of Nearest Airports to SUM
- List of Nearest Airports to SUM
- Map of Furthest Airports from SUM
- List of Furthest Airports from SUM
About this route:
A direct, nonstop flight between Baltimore/Washington International Thurgood Marshall Airport (BWI), between Baltimore, Maryland and Washington, D.C., United States and Sumter Airport (SUM), Sumter, South Carolina, United States would travel a Great Circle distance of 412 miles (or 664 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 Baltimore/Washington International Thurgood Marshall Airport and Sumter Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | BWI / KBWI | 
| Airport Name: | Baltimore/Washington International Thurgood Marshall Airport | 
| Location: | between Baltimore, Maryland and Washington, D.C., United States | 
| GPS Coordinates: | 39°10'31"N by 76°40'5"W | 
| Area Served: | Baltimore–Washington Metropolitan Area | 
| Operator/Owner: | Maryland Aviation Administration | 
| Airport Type: | Public | 
| Elevation: | 146 feet (45 meters) | 
| # of Runways: | 4 | 
| View all routes: | Routes from BWI | 
| More Information: | BWI Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | SUM / KSMS | 
| Airport Names: | 
 | 
| Location: | Sumter, South Carolina, United States | 
| GPS Coordinates: | 33°59'41"N by 80°21'41"W | 
| Area Served: | Sumter, South Carolina | 
| Operator/Owner: | City & County of Sumter | 
| Airport Type: | Public | 
| Elevation: | 182 feet (55 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from SUM | 
| More Information: | SUM Maps & Info | 
Facts about Baltimore/Washington International Thurgood Marshall Airport (BWI):
- As of January 2014, Southwest Airlines, including its subsidiary AirTran Airways, represents approximately 71% of passengers followed by Delta Air Lines at 8%.
- Baltimore/Washington International Thurgood Marshall Airport handled 22,391,785 passengers last year.
- Baltimore/Washington International Thurgood Marshall Airport (BWI) has 4 runways.
- The furthest airport from Baltimore/Washington International Thurgood Marshall Airport (BWI) is Margaret River Airport (MGV), which is located 11,691 miles (18,814 kilometers) away in Margaret River, Western Australia, Australia.
- The Federal Aviation Administration is currently in the process of designing a new air traffic control tower that will replace the current tower.
- To accommodate Southwest's extensive presence at the airport, in 2005 Concourses A and B were expanded, renovated, and integrated with one another to house all of that airline's operations there.
- Planning for a new airport on 3,200 acres to serve the Baltimore/Washington area began just after the end of World War II.
- The State of Maryland, through the Maryland Department of Transportation, purchased Friendship International Airport from the City of Baltimore for $36 million in 1972.
- The closest airport to Baltimore/Washington International Thurgood Marshall Airport (BWI) is Tipton Airport (FME), which is located only 8 miles (13 kilometers) SW of BWI.
- The airport has been a backdrop in numerous films, including The Silence of the Lambs, Goldfinger, Broadcast News, and Twelve Monkeys.
- The BWI Rail Station opened in 1980, providing a rail connection to passengers on the busy Northeast Corridor through Amtrak.
- Because of Baltimore/Washington International Thurgood Marshall Airport's relatively low elevation of 146 feet, planes can take off or land at Baltimore/Washington International Thurgood Marshall 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 Sumter Airport (SUM):
- Sumter Airport (SUM) has 2 runways.
- The furthest airport from Sumter Airport (SUM) is Margaret River Airport (MGV), which is located 11,552 miles (18,590 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Sumter Airport (SUM) is Shaw Air Force Base (SSC), which is located only 7 miles (11 kilometers) WSW of SUM.
- Because of Sumter Airport's relatively low elevation of 182 feet, planes can take off or land at Sumter 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.
- Sumter Airport covers an area of 429 acres at an elevation of 182 feet above mean sea level.
- In addition to being known as "Sumter Airport", another name for SUM is "SMS".




