Nonstop flight route between St. Mary's, Alaska, United States and Portland, Oregon, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(45°35'18"N by 122°35'50"W)
Distance from KSM to PDX:
1,962.34 miles (3,158.08 km)
Share this route:
Jump to:
- About this route
- KSM Airport Information
- PDX Airport Information
- Facts about KSM
- Facts about PDX
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to PDX
- List of Nearest Airports to PDX
- Map of Furthest Airports from PDX
- List of Furthest Airports from PDX
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Portland International Airport (PDX), Portland, Oregon, United States would travel a Great Circle distance of 1,962 miles (or 3,158 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 Airport and Portland International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PDX / KPDX |
| Airport Name: | Portland International Airport |
| Location: | Portland, Oregon, United States |
| GPS Coordinates: | 45°35'18"N by 122°35'50"W |
| Area Served: | Portland metropolitan area |
| Airport Type: | Public |
| Elevation: | 30 feet (9 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from PDX |
| More Information: | PDX Maps & Info |
Facts about St. Mary's Airport (KSM):
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 Airport (KSM) has 2 runways.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
Facts about Portland International Airport (PDX):
- Portland International Airport handled 1,502,956 passengers last year.
- Portland International Airport (PDX) has 3 runways.
- In the 1980s Air California had nonstop flights to Seattle, Reno and the Bay Area.
- Portland Airport has five concourses as well as a business aviation terminal.
- The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
- During World War II the airfield was used by the United States Army Air Forces.
- Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland International 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.
- An expanded parking garage, new control tower, and canopy over the curbside were finished in the late 1990s.
- The "super airport" had a terminal on the north side, off Marine Drive, and five runways.
- The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.88 miles (15.90 km) ESE | Portland-Troutdale Airport (TTD) | Portland, Oregon, United States | |
| 2 | 17.37 miles (27.95 km) W | Portland-Hillsboro Airport (HIO) | Hillsboro / Portland, Oregon, United States | |
| 3 | 35.25 miles (56.73 km) E | Cascade Locks State Airport (CZK) | Cascade Locks, Oregon, United States | |
| 4 | 39.34 miles (63.31 km) NNW | Southwest Washington Regional Airport (KLS) | Kelso, Washington, United States | |
| 5 | 50.89 miles (81.91 km) SSW | McNary Field (SLE) | Salem, Oregon, United States | |
| 6 | 62.21 miles (100.12 km) N | South Lewis County Airport (TDO) | Toledo, Washington, United States | |
| 7 | 69.17 miles (111.32 km) E | Columbia Gorge Regional Airport (DLS) | The Dalles, Oregon, United States | |
| 8 | 71.46 miles (115.00 km) WSW | Pacific City State Airport (PFC) | Pacific City, Oregon, United States | |
| 9 | 73.12 miles (117.67 km) WNW | Astoria Regional Airport (AST) | Astoria, Oregon, United States | |
| 10 | 82.63 miles (132.98 km) SSW | Corvallis Municipal Airport (CVO) | Corvallis, Oregon, United States | |
| 11 | 94.71 miles (152.42 km) SE | Madras Municipal AirportMadras Army Airfield (MDJ) | Madras, Oregon, United States | |
| 12 | 96.51 miles (155.32 km) N | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 13 | 99.64 miles (160.35 km) SW | Newport Municipal Airport (ONP) | Newport, Oregon, United States | |
| 14 | 102.99 miles (165.75 km) N | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 15 | 105.73 miles (170.16 km) SSW | Eugene Airport (EUG) | Eugene, Oregon, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,902.74 miles (17,546.22 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,830.39 miles (17,429.78 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,756.38 miles (17,310.67 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,726.94 miles (17,263.29 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,698.44 miles (17,217.42 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,675.67 miles (17,180.79 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,669.74 miles (17,171.24 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 8 | 10,663.86 miles (17,161.78 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,647.89 miles (17,136.07 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 10 | 10,637.26 miles (17,118.96 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 11 | 10,634.80 miles (17,115.00 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,629.58 miles (17,106.60 km) SSE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 13 | 10,626.10 miles (17,101.01 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 14 | 10,621.67 miles (17,093.87 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 15 | 10,619.98 miles (17,091.16 km) SSW | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |