Nonstop flight route between Leonardtown, Maryland, United States and West Chicago, Illinois, United States:
Departure Airport:
(38°18'55"N by 76°32'59"W)
Arrival Airport:
(41°54'24"N by 88°14'53"W)
Distance from LTW to DPA:
665.41 miles (1,070.87 km)
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Jump to:
- About this route
- LTW Airport Information
- DPA Airport Information
- Facts about LTW
- Facts about DPA
- Map of Nearest Airports to LTW
- List of Nearest Airports to LTW
- Map of Furthest Airports from LTW
- List of Furthest Airports from LTW
- Map of Nearest Airports to DPA
- List of Nearest Airports to DPA
- Map of Furthest Airports from DPA
- List of Furthest Airports from DPA
About this route:
A direct, nonstop flight between St. Mary's County Regional Airport (LTW), Leonardtown, Maryland, United States and DuPage Airport (DPA), West Chicago, Illinois, United States would travel a Great Circle distance of 665 miles (or 1,071 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 St. Mary's County Regional Airport and DuPage Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | LTW / |
| Airport Names: |
|
| Location: | Leonardtown, Maryland, United States |
| GPS Coordinates: | 38°18'55"N by 76°32'59"W |
| Airport Type: | Public |
| Elevation: | 142 feet (43 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LTW |
| More Information: | LTW Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | DPA / KDPA |
| Airport Name: | DuPage Airport |
| Location: | West Chicago, Illinois, United States |
| GPS Coordinates: | 41°54'24"N by 88°14'53"W |
| Airport Type: | Public |
| Elevation: | 759 feet (231 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from DPA |
| More Information: | DPA Maps & Info |
Facts about St. Mary's County Regional Airport (LTW):
- In addition to being known as "St. Mary's County Regional Airport", other names for LTW include "Capt. Walter Francis Duke Regional Airport", "none" and "2W6".
- Because of St. Mary's County Regional Airport's relatively low elevation of 142 feet, planes can take off or land at St. Mary's County Regional 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.
- St. Mary's County Regional Airport (LTW) currently has only 1 runway.
- The closest airport to St. Mary's County Regional Airport (LTW) is Naval Air Station Patuxent River (NHK), which is located only 8 miles (12 kilometers) ESE of LTW.
- The furthest airport from St. Mary's County Regional Airport (LTW) is Margaret River Airport (MGV), which is located 11,720 miles (18,862 kilometers) away in Margaret River, Western Australia, Australia.
Facts about DuPage Airport (DPA):
- DuPage Airport (DPA) has 4 runways.
- In the late 1970s, DuPage Airport was designated a reliever airport for general aviation aircraft, and in the early 1980s, the airport authority began an expansion project to accommodate the increased traffic.
- The furthest airport from DuPage Airport (DPA) is Margaret River Airport (MGV), which is located 11,056 miles (17,792 kilometers) away in Margaret River, Western Australia, Australia.
- However, planners learned a lesson from the plight of the beleaguered, land-locked Midway Airport.
- The closest airport to DuPage Airport (DPA) is Chicago/Aurora Municipal Airport (AUZ), which is located only 15 miles (24 kilometers) SW of DPA.
- During the summer of 2012, runway 2R/20L was extended 1,343 feet to a total length of 6,443 feet.
- Because of DuPage Airport's relatively low elevation of 759 feet, planes can take off or land at DuPage 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 7.77 miles (12.50 km) ESE | Naval Air Station Patuxent River (NHK) | Patuxent River, Maryland, United States |     |
| 2 | 32.11 miles (51.68 km) ENE | Cambridge–Dorchester Airport (CGE) | Cambridge, Maryland, United States | |
| 3 | 38.28 miles (61.61 km) NNW | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 4 | 42.62 miles (68.59 km) NE | Easton Airport (ESN) | Easton, Maryland, United States | |
| 5 | 43.37 miles (69.79 km) N | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 6 | 43.90 miles (70.64 km) NW | Davison Army Airfield (DAA) | Fort Belvoir, Virginia, United States | |
| 7 | 44.30 miles (71.29 km) NW | Bolling Air Force Base (BOF) | Washington, D.C., United States | |
| 8 | 45.06 miles (72.52 km) WSW | A.P. Hill Army Airfield (APH) | Fort A.P. Hill, Virginia, United States | |
| 9 | 45.50 miles (73.23 km) NW | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 10 | 50.17 miles (80.73 km) NNW | College Park Airport (CGS) | College Park, Maryland, United States | |
| 11 | 54.39 miles (87.53 km) NNW | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 12 | 56.43 miles (90.81 km) E | Salisbury-Ocean City: Wicomico Regional Airport (SBY) | Salisbury, Maryland, United States | |
| 13 | 59.26 miles (95.37 km) WNW | Manassas Regional Airport (HEF) | Manassas, Virginia, United States | |
| 14 | 59.26 miles (95.37 km) WNW | Manassas Regional Airport (MNZ) | Manassas, Virginia, United States | |
| 15 | 59.76 miles (96.18 km) N | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,720.20 miles (18,861.79 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,697.03 miles (18,824.49 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,677.51 miles (18,793.08 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,672.64 miles (18,785.24 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,627.72 miles (18,712.96 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,615.07 miles (18,692.60 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,608.24 miles (18,681.61 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 11,604.71 miles (18,675.92 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,582.36 miles (18,639.95 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,574.88 miles (18,627.91 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,514.80 miles (18,531.23 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,480.32 miles (18,475.74 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,473.35 miles (18,464.52 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,465.36 miles (18,451.67 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,395.33 miles (18,338.97 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.96 miles (24.08 km) SW | Chicago/Aurora Municipal Airport (AUZ) | Aurora, Illinois, United States | |
| 2 | 18.34 miles (29.52 km) ENE | Chicago O'Hare International Airport (ORD) | Chicago, Illinois, United States | |
| 3 | 22.15 miles (35.64 km) SSE | Lewis University Airport (LOT) | Chicago / Romeoville, Illinois, United States | |
| 4 | 22.84 miles (36.76 km) NE | Chicago Executive Airport (PWK) | Chicago/Prospect Heights/Wheeling, Illinois, United States | |
| 5 | 26.85 miles (43.21 km) ESE | Chicago Midway International Airport (MDW) | Chicago, Illinois, United States | |
| 6 | 27.15 miles (43.69 km) S | Joliet Regional Airport (JOT) | Joliet, Illinois, United States | |
| 7 | 40.59 miles (65.32 km) NNE | Waukegan National Airport (UGN) | Chicago / Waukegan, Illinois, United States | |
| 8 | 47.51 miles (76.46 km) ESE | Gary/Chicago International Airport (GYY) | Gary, Indiana (near Chicago), United States | |
| 9 | 47.89 miles (77.08 km) WNW | Chicago Rockford International Airport (RFD) | Rockford, Illinois, United States | |
| 10 | 50.32 miles (80.99 km) NNE | Kenosha Regional Airport (ENW) | Kenosha, Wisconsin, United States | |
| 11 | 60.44 miles (97.28 km) SW | Illinois Valley Regional Airport (VYS) | Peru, Illinois, United States | |
| 12 | 61.36 miles (98.76 km) SSE | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| 13 | 62.99 miles (101.37 km) NNE | John H. Batten Airport (RAC) | Racine, Wisconsin, United States | |
| 14 | 63.83 miles (102.73 km) NW | Southern Wisconsin Regional Airport (JVL) | Janesville, Wisconsin, United States | |
| 15 | 71.28 miles (114.72 km) ESE | Porter County Regional Airport (VPZ) | Valparaiso, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,055.69 miles (17,792.37 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,032.32 miles (17,754.75 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,015.45 miles (17,727.60 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,007.65 miles (17,715.06 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,962.95 miles (17,643.11 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,953.42 miles (17,627.77 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,949.94 miles (17,622.17 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,939.68 miles (17,605.67 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,920.63 miles (17,575.01 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,916.35 miles (17,568.11 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,865.76 miles (17,486.71 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,834.29 miles (17,436.06 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,823.41 miles (17,418.55 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,814.14 miles (17,403.63 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,775.27 miles (17,341.08 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |