Nonstop flight route between Lethem, Guyana and Portsmouth, New Hampshire, United States:
Departure Airport:
(3°22'21"N by 59°47'21"W)
Arrival Airport:
(43°4'41"N by 70°49'23"W)
Distance from LTM to PSM:
2,825.89 miles (4,547.82 km)
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- About this route
- LTM Airport Information
- PSM Airport Information
- Facts about LTM
- Facts about PSM
- Map of Nearest Airports to LTM
- List of Nearest Airports to LTM
- Map of Furthest Airports from LTM
- List of Furthest Airports from LTM
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
About this route:
A direct, nonstop flight between Lethem Airport (LTM), Lethem, Guyana and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 2,826 miles (or 4,548 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 large distance between Lethem Airport and Portsmouth International Airport at Pease, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Lethem Airport and Portsmouth International Airport at Pease. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | LTM / SYLT |
| Airport Name: | Lethem Airport |
| Location: | Lethem, Guyana |
| GPS Coordinates: | 3°22'21"N by 59°47'21"W |
| Area Served: | Lethem, Guyana, Upper Takutu-Upper Essequibo, Guyana |
| Operator/Owner: | Government |
| Airport Type: | Public |
| Elevation: | 351 feet (107 meters) |
| View all routes: | Routes from LTM |
| More Information: | LTM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PSM / KPSM |
| Airport Name: | Portsmouth International Airport at Pease |
| Location: | Portsmouth, New Hampshire, United States |
| GPS Coordinates: | 43°4'41"N by 70°49'23"W |
| Area Served: | Portsmouth, New Hampshire |
| Operator/Owner: | Pease Development Authority |
| Airport Type: | Public / Military |
| Elevation: | 100 feet (30 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PSM |
| More Information: | PSM Maps & Info |
Facts about Lethem Airport (LTM):
- Because of Lethem Airport's relatively low elevation of 351 feet, planes can take off or land at Lethem 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 Lethem Airport (LTM) is Boa Vista-Atlas Brasil Cantanhede International Airport (BVB), which is located 72 miles (116 kilometers) WSW of LTM.
- The furthest airport from Lethem Airport (LTM) is Andi Jemma Airport (MXB), which is nearly antipodal to Lethem Airport (meaning Lethem Airport is almost on the exact opposite side of the Earth from Andi Jemma Airport), and is located 12,380 miles (19,924 kilometers) away in Masamba, Indonesia.
Facts about Portsmouth International Airport at Pease (PSM):
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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 | 72.31 miles (116.37 km) WSW | Boa Vista-Atlas Brasil Cantanhede International Airport (BVB) | Boa Vista, Roraima, Brazil |     |
| 2 | 222.03 miles (357.32 km) NE | Washabo Airstrip (WSO) | Washabo, Suriname | |
| 3 | 240.44 miles (386.95 km) NNE | Cheddi Jagan International Airport (GEO) | Georgetown, Guyana | |
| 4 | 260.20 miles (418.75 km) NE | Majoor Henry Fernandes Airport (ICK) | Nieuw-Nickerie, Suriname | |
| 5 | 263.07 miles (423.36 km) NNW | El Dorado Airport (EOR) | El Dorado, Venezuela | |
| 6 | 264.08 miles (424.99 km) NNE | Ogle Airport (OGL) | Georgetown, Guyana | |
| 7 | 273.13 miles (439.56 km) NE | Wageningen Airstrip (AGI) | Wageningen, Suriname | |
| 8 | 281.32 miles (452.75 km) E | Tepoe Airstrip (KCB) | Kasikasima, Suriname | |
| 9 | 289.06 miles (465.20 km) NW | Canaima Airport (CAJ) | Canaima, Venezuela | |
| 10 | 292.66 miles (470.99 km) E | Cayana Airstrip (AAJ) | Awaradam, Suriname | |
| 11 | 294.12 miles (473.33 km) NE | Totness Airstrip (TOT) | Totness, Coronie, Suriname | |
| 12 | 299.87 miles (482.60 km) E | Vincent Fayks Airport (OEM) | Paloemeu, Suriname | |
| 13 | 300.21 miles (483.14 km) E | Djoemoe Airstrip (DOE) | Djumu (Djoemoe), Suriname | |
| 14 | 304.78 miles (490.50 km) E | Botopasi Airstrip (BTO) | Botopasi, Suriname | |
| 15 | 309.89 miles (498.73 km) ENE | Laduani Airstrip (LDO) | Ladouanie, Suriname | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,380.04 miles (19,923.69 km) S | Andi Jemma Airport (MXB) | Masamba, Indonesia | |
| 2 | 12,338.84 miles (19,857.39 km) ESE | Tampa Padang Airport (MJU) | Mamuju, West Sulawesi, Indonesia | |
| 3 | 12,338.61 miles (19,857.02 km) SW | Soroako Airport (SQR) | Soroako, Indonesia | |
| 4 | 12,311.62 miles (19,813.59 km) SSE | Sultan Hasanuddin International Airport (SHIAM) (UPG) | Makassar, Indonesia | |
| 5 | 12,276.91 miles (19,757.73 km) WSW | Haluoleo Airport (WMA) (KDI) | Kendari, Indonesia | |
| 6 | 12,224.67 miles (19,673.65 km) SW | Bolaang Airport (BJG) | Bolaang, Indonesia | |
| 7 | 12,218.32 miles (19,663.44 km) SW | Betoambari Airport (BUW) | Bau-Bau, Buton, Indonesia | |
| 8 | 12,197.54 miles (19,629.99 km) SW | Syukuran Aminuddin Amir Airport (LUW) | Luwuk, Central Sulawesi, Indonesia | |
| 9 | 12,165.60 miles (19,578.58 km) ESE | Sultan Aji Muhamad Sulaiman Airport (BPN) | Balikpapan, East Kalimantan | |
| 10 | 12,157.62 miles (19,565.75 km) E | Gusti Syamsir Alam Airport (KBU) | Kotabaru, Kalimantan, Indonesia | |
| 11 | 12,146.32 miles (19,547.57 km) E | Batu Licin Airport (BTW) | Batu Licin, Kalimantan, Indonesia | |
| 12 | 12,130.31 miles (19,521.79 km) SE | Bontang Airport (BXT) | Bontang, Indonesia | |
| 13 | 12,116.71 miles (19,499.90 km) SSW | Pogogul Airport (UOL) | Buol, Indonesia | |
| 14 | 12,105.18 miles (19,481.35 km) SSW | Jalaluddin Airport (GTO) | Gorontalo, Indonesia | |
| 15 | 12,082.75 miles (19,445.26 km) S | Komodo Airport (LBJ) | Labuan Bajo, Flores Island, Indonesia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.58 miles (36.34 km) NNE | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 2 | 29.19 miles (46.98 km) SSW | Lawrence Municipal Airport (LWM) | Lawrence, Massachusetts, United States | |
| 3 | 32.53 miles (52.35 km) WSW | Manchester–Boston Regional Airport (MHT) | Manchester, New Hampshire, United States | |
| 4 | 34.45 miles (55.44 km) S | Beverly Municipal Airport (BVY) | Beverly, Massachusetts, United States | |
| 5 | 35.29 miles (56.80 km) WNW | Concord Municipal Airport (CON) | Concord, New Hampshire, United States | |
| 6 | 40.53 miles (65.23 km) WSW | Nashua Airport (ASH) | Nashua, New Hampshire, United States | |
| 7 | 45.44 miles (73.12 km) NW | Laconia Municipal Airport (LCI) | Laconia, New Hampshire, United States | |
| 8 | 46.98 miles (75.61 km) NNE | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 9 | 48.19 miles (77.56 km) SSW | Laurence G. Hanscom Field (BED) | Bedford, Massachusetts, United States | |
| 10 | 50.27 miles (80.90 km) S | Boston Logan International Airport (BOS) | Boston, Massachusetts, United States | |
| 11 | 52.79 miles (84.95 km) SW | Moore Army Airfield (AYE) | Leominster, Massachusetts, United States | |
| 12 | 62.58 miles (100.71 km) WSW | Jaffrey Airport - Silver Ranch Airpark (AFN) | Jaffrey, New Hampshire, United States | |
| 13 | 63.39 miles (102.02 km) N | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 14 | 63.85 miles (102.75 km) SSW | Norwood Memorial Airport (OWD) | Norwood, Massachusetts, United States | |
| 15 | 70.61 miles (113.64 km) WSW | Gardner Municipal Airport (GDM) | Gardner, Massachusetts, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,728.69 miles (18,875.45 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,721.96 miles (18,864.62 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,709.16 miles (18,844.03 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 11,706.15 miles (18,839.18 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,680.00 miles (18,797.09 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,643.56 miles (18,738.45 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,596.81 miles (18,663.21 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,594.69 miles (18,659.81 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,582.73 miles (18,640.55 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,496.62 miles (18,501.97 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,495.19 miles (18,499.67 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 11,405.66 miles (18,355.59 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,403.27 miles (18,351.74 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 11,373.84 miles (18,304.37 km) SW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,370.22 miles (18,298.56 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |