Nonstop flight route between Portsmouth, New Hampshire, United States and Monrovia, Liberia:
Departure Airport:
(43°4'41"N by 70°49'23"W)
Arrival Airport:
(6°14'2"N by 10°21'43"W)
Distance from PSM to ROB:
4,449.35 miles (7,160.52 km)
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Jump to:
- About this route
- PSM Airport Information
- ROB Airport Information
- Facts about PSM
- Facts about ROB
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to ROB
- List of Nearest Airports to ROB
- Map of Furthest Airports from ROB
- List of Furthest Airports from ROB
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Roberts International Airport Roberts Field (ROB), Monrovia, Liberia would travel a Great Circle distance of 4,449 miles (or 7,161 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 Portsmouth International Airport at Pease and Roberts International Airport Roberts Field, 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 Portsmouth International Airport at Pease and Roberts International Airport Roberts Field. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | ROB / GLRB |
| Airport Name: | Roberts International Airport Roberts Field |
| Location: | Monrovia, Liberia |
| GPS Coordinates: | 6°14'2"N by 10°21'43"W |
| Area Served: | Monrovia, Liberia |
| Airport Type: | Public |
| Elevation: | 31 feet (9 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ROB |
| More Information: | ROB Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
- Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
- 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.
- 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.
- 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.
Facts about Roberts International Airport Roberts Field (ROB):
- Roberts International Airport Roberts Field handled 133,656 passengers last year.
- Because of Roberts International Airport Roberts Field's relatively low elevation of 31 feet, planes can take off or land at Roberts International Airport Roberts Field 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 Roberts International Airport Roberts Field (ROB) is Spriggs Payne Airport (MLW), which is located 27 miles (44 kilometers) W of ROB.
- In October 2012, start-up airline Gambia Bird commenced twice-weekly non-stop services between Banjul and Robertsfield with an A319.
- Roberts is the principal international airport in Liberia, and one of only two with paved runways in the nation.
- From 1943 to the end of WW2 in 1945, Roberts Field Airport, as it was then known, served as an alternative base for a contingent of 26 Squadron SAAF which flew Vickers Wellington Bombers on anti submarine and convoy escort patrols over the Atlantic.
- The furthest airport from Roberts International Airport Roberts Field (ROB) is Nauru International Airport (INU), which is nearly antipodal to Roberts International Airport Roberts Field (meaning Roberts International Airport Roberts Field is almost on the exact opposite side of the Earth from Nauru International Airport), and is located 12,001 miles (19,314 kilometers) away in Yaren, Nauru.
- Roberts International Airport Roberts Field (ROB) currently has only 1 runway.
- At one point in the past, Roberts Airport was listed as an alternative landing site for NASA's Space Shuttle.
- Presently, daily commercial traffic consists of only one or two arrivals.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 27.49 miles (44.24 km) W | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| 2 | 30.90 miles (49.73 km) SE | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 3 | 121.67 miles (195.81 km) SE | Greenville/Sinoe Airport (SNI) | Greenville, Liberia | |
| 4 | 127.68 miles (205.48 km) NNW | Kenema Airport (KEN) | Kenema, Sierra Leone | |
| 5 | 146.66 miles (236.02 km) N | Foya Airport (FOY) | Foya, Liberia | |
| 6 | 149.81 miles (241.09 km) NE | Nimba Airport (NIA) | Nimba, Liberia | |
| 7 | 150.29 miles (241.88 km) NNE | Voinjama Airport (VOI) | Voinjama, Liberia | |
| 8 | 152.20 miles (244.95 km) NW | Bo Airport (KBS) | Bo, Sierra Leone | |
| 9 | 153.26 miles (246.65 km) E | Tchien Airport (THC) | Tchien, Liberia | |
| 10 | 157.67 miles (253.74 km) NE | Nzérékoré Airport (NZE) | N'zerekore, Guinea | |
| 11 | 170.28 miles (274.04 km) NNE | Macenta Airport (MCA) | Macenta, Guinea | |
| 12 | 171.10 miles (275.36 km) NNW | Yengema Airport (WYE) | Yengema, Kono District, Sierra Leone | |
| 13 | 171.25 miles (275.60 km) SE | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 14 | 172.96 miles (278.36 km) WNW | Sherbro International Airport (BTE) | Bonthe, Sierra Leone | |
| 15 | 176.07 miles (283.35 km) NW | Gbangbatok Airport (GBK) | Gbangbatok, Sierra Leone | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,001.48 miles (19,314.47 km) SSE | Nauru International Airport (INU) | Yaren, Nauru | |
| 2 | 11,914.55 miles (19,174.55 km) SSW | Aranuka Airport (AAK) | Aranuka, Kiribati | |
| 3 | 11,906.85 miles (19,162.17 km) SSE | Mota Lava Airport (MTV) | Mota Lava, Vanuatu | |
| 4 | 11,891.43 miles (19,137.35 km) SSE | Vanua Lava Airport (SLH) | Sola, Vanua Lava, Torba Province, Vanuatu | |
| 5 | 11,889.60 miles (19,134.42 km) SSW | Abemama Atoll Airport (AEA) | Abemama Atoll, Kiribati | |
| 6 | 11,883.66 miles (19,124.84 km) WSW | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 7 | 11,883.30 miles (19,124.28 km) SW | Beru Island Airport (BEZ) | Beru, Kiribati | |
| 8 | 11,867.83 miles (19,099.37 km) SSE | Gaua Airport (ZGU) | Gaua, Torba, Vanuatu | |
| 9 | 11,857.61 miles (19,082.92 km) SSW | Bonriki International Airport (TRW) | Tarawa, Kiribati | |
| 10 | 11,856.27 miles (19,080.78 km) ESE | Ulawa Airport (RNA) | Arona, Ulawa Island, Solomon Islands | |
| 11 | 11,834.35 miles (19,045.50 km) SSW | Abaiang Atoll Airport (ABF) | Abaiang, Kiribati | |
| 12 | 11,832.96 miles (19,043.25 km) ESE | Kirakira Airport (IRA) | Kirakira, Makira Island, Solomon Islands | |
| 13 | 11,822.17 miles (19,025.89 km) S | Maewo-Naone Airport (MWF) | Maewo, Vanuatu | |
| 14 | 11,818.50 miles (19,019.99 km) ESE | Uru Harbour Airport (ATD) | Atoifi, Malaita, Solomon Islands | |
| 15 | 11,812.06 miles (19,009.63 km) SSW | Marakei Airport (MZK) | Marakei, Kiribati | |