Nonstop flight route between Leonardtown, Maryland, United States and San Diego, California, United States:
Departure Airport:
(38°18'55"N by 76°32'59"W)
Arrival Airport:
(32°34'19"N by 116°58'49"W)
Distance from LTW to SDM:
2,291.60 miles (3,687.96 km)
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Jump to:
- About this route
- LTW Airport Information
- SDM Airport Information
- Facts about LTW
- Facts about SDM
- 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 SDM
- List of Nearest Airports to SDM
- Map of Furthest Airports from SDM
- List of Furthest Airports from SDM
About this route:
A direct, nonstop flight between St. Mary's County Regional Airport (LTW), Leonardtown, Maryland, United States and Brown Field Municipal Airport (SDM), San Diego, California, United States would travel a Great Circle distance of 2,292 miles (or 3,688 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 Brown Field Municipal 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: | SDM / KSDM |
| Airport Name: | Brown Field Municipal Airport |
| Location: | San Diego, California, United States |
| GPS Coordinates: | 32°34'19"N by 116°58'49"W |
| Area Served: | San Diego, California |
| Operator/Owner: | City of San Diego |
| Airport Type: | Public |
| Elevation: | 526 feet (160 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SDM |
| More Information: | SDM Maps & Info |
Facts about St. Mary's County Regional Airport (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.
- 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.
- 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.
- 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".
Facts about Brown Field Municipal Airport (SDM):
- A precision approach is not possible to either runway end due to rising terrain less than six miles east of the airport.
- Brown Field is 1.5 miles north of the US/Mexico border in the Otay Mesa Community of the City of San Diego.
- The furthest airport from Brown Field Municipal Airport (SDM) is Sir Gaëtan Duval Airport (RRG), which is located 11,551 miles (18,590 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Brown Field Municipal Airport (SDM) is Tijuana International Airport (TIJ), which is located only 2 miles (4 kilometers) SSE of SDM.
- Brown Field Municipal Airport (SDM) has 2 runways.
- Because of Brown Field Municipal Airport's relatively low elevation of 526 feet, planes can take off or land at Brown Field Municipal 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.
- In 1951 the Navy reopened Brown Field due to increased military activity from the Korean War.
| 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 | 2.25 miles (3.62 km) SSE | Tijuana International Airport (TIJ) | Tijuana, Baja California, Mexico | |
| 2 | 7.68 miles (12.35 km) W | Naval Outlying Landing Field Imperial Beach (NRS) | Imperial Beach, California, United States | |
| 3 | 16.24 miles (26.14 km) WNW | NAS North Island (NZY) | San Diego, California, United States | |
| 4 | 16.52 miles (26.58 km) NW | San Diego International Airport (SAN) | San Diego, California, United States | |
| 5 | 17.55 miles (28.24 km) N | Gillespie Field (SEE) | San Diego / El Cajon, California, United States | |
| 6 | 19.21 miles (30.91 km) NNW | Montgomery Field (MYF) | San Diego, California, United States | |
| 7 | 22.47 miles (36.17 km) NNW | MCAS Miramar, (NKX) | San Diego, California, United States | |
| 8 | 42.18 miles (67.88 km) NNW | McClellan–Palomar Airport (CLD) | Carlsbad, California, United States | |
| 9 | 49.55 miles (79.74 km) NNW | Bob Maxwell Field (Oceanside Municipal Airport) (OCN) | Oceanside, California, United States | |
| 10 | 58.05 miles (93.42 km) SSE | Ensenada Airport (ESE) | Ensenada, Baja California, Mexico | |
| 11 | 60.93 miles (98.06 km) NE | Borrego Valley Airport (BXS) | Borrego Springs, California, United States | |
| 12 | 75.43 miles (121.40 km) NE | Salton Sea Airport (SAS) | Salton City, California, United States | |
| 13 | 78.13 miles (125.74 km) ENE | Naval Air Facility El Centro (NJK) | El Centro, California, United States | |
| 14 | 80.30 miles (129.23 km) N | Hemet-Ryan AirportRyan Field (HMT) | Hemet, California, United States | |
| 15 | 83.48 miles (134.35 km) ENE | Imperial County Airport (IPL) | Imperial, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,551.14 miles (18,589.71 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 11,535.69 miles (18,564.85 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 11,530.31 miles (18,556.19 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 11,507.00 miles (18,518.67 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 11,335.51 miles (18,242.70 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 11,241.88 miles (18,092.00 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 11,204.11 miles (18,031.23 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 11,194.32 miles (18,015.46 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,127.00 miles (17,907.12 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 11,087.06 miles (17,842.84 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 11,082.72 miles (17,835.87 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 11,054.76 miles (17,790.86 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 11,029.27 miles (17,749.85 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 11,027.42 miles (17,746.88 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 11,020.39 miles (17,735.56 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |