Nonstop flight route between Unalaska, Alaska, United States and Portsmouth, Ohio, United States:
Departure Airport:
(53°53'56"N by 166°32'41"W)
Arrival Airport:
(38°50'26"N by 82°50'49"W)
Distance from DUT to PMH:
3,879.18 miles (6,242.92 km)
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Jump to:
- About this route
- DUT Airport Information
- PMH Airport Information
- Facts about DUT
- Facts about PMH
- Map of Nearest Airports to DUT
- List of Nearest Airports to DUT
- Map of Furthest Airports from DUT
- List of Furthest Airports from DUT
- Map of Nearest Airports to PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
About this route:
A direct, nonstop flight between Unalaska Airport (DUT), Unalaska, Alaska, United States and Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States would travel a Great Circle distance of 3,879 miles (or 6,243 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 Unalaska Airport and Greater Portsmouth Regional Airport, 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 Unalaska Airport and Greater Portsmouth Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | DUT / PADU |
| Airport Names: |
|
| Location: | Unalaska, Alaska, United States |
| GPS Coordinates: | 53°53'56"N by 166°32'41"W |
| Area Served: | Unalaska, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 22 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DUT |
| More Information: | DUT Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PMH / KPMH |
| Airport Name: | Greater Portsmouth Regional Airport |
| Location: | Portsmouth, Ohio, United States |
| GPS Coordinates: | 38°50'26"N by 82°50'49"W |
| Area Served: | Portsmouth, Ohio |
| Operator/Owner: | Scioto County Airport Authority |
| Airport Type: | Public |
| Elevation: | 663 feet (202 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PMH |
| More Information: | PMH Maps & Info |
Facts about Unalaska Airport (DUT):
- Because of Unalaska Airport's relatively low elevation of 22 feet, planes can take off or land at Unalaska 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 Unalaska Airport (DUT) is Akutan Seaplane Base (KQA), which is located 35 miles (56 kilometers) ENE of DUT.
- The furthest airport from Unalaska Airport (DUT) is Cape Town International Airport (CPT), which is located 11,037 miles (17,763 kilometers) away in Cape Town, South Africa.
- Unalaska Airport (DUT) currently has only 1 runway.
- In addition to being known as "Unalaska Airport", other names for DUT include "Dutch Harbor Airport" and "Tom Madsen Airport".
- Unalaska Airport is the base for the "Dutch Harbor Approach" mission supplied with Microsoft Flight Simulator X.
Facts about Greater Portsmouth Regional Airport (PMH):
- The airport was constructed in the 1957 to replace another airport located in West Portsmouth, Ohio which was situated near the Ohio River.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- The airport offers fuel services along with a small snack bar, a couple of hangars, mechanics, and pilot snooze room.
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth 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.
- The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- The furthest airport from Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
- Greater Portsmouth Regional Airport is a public use airport located 10 nautical miles northeast of the central business district of Portsmouth, a city in Scioto County, Ohio, United States.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.10 miles (56.49 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States |     |
| 2 | 115.63 miles (186.09 km) SW | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 3 | 142.15 miles (228.78 km) ENE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 4 | 160.46 miles (258.23 km) ENE | Pauloff Harbor Seaplane Base (KPH) | Sanak Island, Alaska, United States | |
| 5 | 177.69 miles (285.96 km) ENE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 6 | 191.11 miles (307.56 km) ENE | King Cove Airport (KVC) | King Cove, Alaska, United States | |
| 7 | 222.07 miles (357.39 km) NNW | St. George Airport (STG) | St. George, Alaska, United States | |
| 8 | 258.48 miles (415.98 km) NE | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 9 | 260.01 miles (418.45 km) ENE | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 10 | 267.59 miles (430.64 km) NNW | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 11 | 278.38 miles (448.00 km) NE | Port Moller Airport (PML) | Cold Bay, Alaska, United States | |
| 12 | 324.27 miles (521.87 km) ENE | Perryville Airport (KPV) | Perryville, Alaska, United States | |
| 13 | 338.39 miles (544.58 km) WSW | Atka Airport (AKB) | Atka, Alaska, United States | |
| 14 | 347.50 miles (559.25 km) ENE | Chignik Lake Airport (KCQ) | Chignik Lake, Alaska, United States | |
| 15 | 355.74 miles (572.51 km) ENE | Chignik Fisheries Airport (KCG) | Chignik, Alaska, United States. | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,037.14 miles (17,762.52 km) SSW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,995.13 miles (17,694.91 km) SSW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,938.74 miles (17,604.15 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,885.53 miles (17,518.51 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,832.30 miles (17,432.85 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,753.73 miles (17,306.41 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 7 | 10,718.30 miles (17,249.39 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 10,714.69 miles (17,243.58 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 9 | 10,714.69 miles (17,243.58 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 10 | 10,680.07 miles (17,187.86 km) S | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 11 | 10,637.02 miles (17,118.58 km) SW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 12 | 10,634.24 miles (17,114.11 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 13 | 10,631.42 miles (17,109.57 km) SSW | Upington Airport (UTN) | Upington, South Africa | |
| 14 | 10,629.75 miles (17,106.88 km) S | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 15 | 10,620.66 miles (17,092.25 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.79 miles (55.99 km) SSE | Lawrence County Airpark (HTW) | Chesapeake, Ohio / Huntington, West Virginia, United States | |
| 2 | 36.25 miles (58.33 km) SSE | Tri-State Airport (HTS) | Huntington, West Virginia, United States | |
| 3 | 41.94 miles (67.50 km) NE | Ohio University Airport Gordon K. Bush Airport (ATO) | Athens/Albany, Ohio, United States | |
| 4 | 64.90 miles (104.45 km) NW | Wilmington Air Park (ILN) | Wilmington, Ohio, United States | |
| 5 | 67.39 miles (108.45 km) N | Rickenbacker International Airport (LCK) | Columbus, Ohio, United States | |
| 6 | 74.94 miles (120.61 km) ESE | Yeager Airport (CRW) | Charleston, West Virginia, United States | |
| 7 | 80.01 miles (128.77 km) N | Port Columbus International Airport (CMH) | Columbus, Ohio, United States | |
| 8 | 83.15 miles (133.81 km) ENE | Mid-Ohio Valley Regional Airport (PKB) | Parkersburg, West Virginia, United States | |
| 9 | 86.34 miles (138.95 km) WNW | Cincinnati Municipal Airport (LUK) | Cincinnati, Ohio, United States | |
| 10 | 86.46 miles (139.15 km) N | Ohio State University Airport (OSU) | Columbus, Ohio, United States | |
| 11 | 87.10 miles (140.18 km) NW | Springfield–Beckley Municipal Airport (SGH) | Springfield, Ohio, United States | |
| 12 | 90.07 miles (144.96 km) NW | Dayton–Wright Brothers Airport (MGY) | Dayton, Ohio, United States | |
| 13 | 91.75 miles (147.65 km) NNE | Zanesville Municipal Airport (ZZV) | Zanesville, Ohio, United States | |
| 14 | 93.47 miles (150.42 km) NW | Wright-Patterson Air Force Base (FFO) | Dayton, Ohio, United States | |
| 15 | 95.72 miles (154.05 km) WNW | Middletown Regional Airport (MWO) | Middletown, Ohio, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,384.56 miles (18,321.63 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,361.95 miles (18,285.24 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,338.90 miles (18,248.15 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,338.49 miles (18,247.48 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,301.73 miles (18,188.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,287.40 miles (18,165.26 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,277.69 miles (18,149.64 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,266.80 miles (18,132.11 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 11,262.96 miles (18,125.94 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 11,243.76 miles (18,095.02 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,216.76 miles (18,051.58 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,187.46 miles (18,004.43 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,171.36 miles (17,978.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,164.59 miles (17,967.62 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,129.72 miles (17,911.50 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |