Nonstop flight route between Fort Sill, Oklahoma, United States and Friday Harbor, Washington, United States:
Departure Airport:
(34°38'58"N by 98°24'7"W)
Arrival Airport:
(48°31'18"N by 123°1'27"W)
Distance from FSI to FRD:
1,581.16 miles (2,544.63 km)
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Jump to:
- About this route
- FSI Airport Information
- FRD Airport Information
- Facts about FSI
- Facts about FRD
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to FRD
- List of Nearest Airports to FRD
- Map of Furthest Airports from FRD
- List of Furthest Airports from FRD
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Friday Harbor Airport (FRD), Friday Harbor, Washington, United States would travel a Great Circle distance of 1,581 miles (or 2,545 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 Henry Post Army Airfield and Friday Harbor Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | FSI / KFSI |
| Airport Name: | Henry Post Army Airfield |
| Location: | Fort Sill, Oklahoma, United States |
| GPS Coordinates: | 34°38'58"N by 98°24'7"W |
| Operator/Owner: | U.S. Army ATCA-ASO |
| Airport Type: | Military |
| Elevation: | 1189 feet (362 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from FSI |
| More Information: | FSI Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | FRD / KFHR |
| Airport Names: |
|
| Location: | Friday Harbor, Washington, United States |
| GPS Coordinates: | 48°31'18"N by 123°1'27"W |
| Area Served: | Friday Harbor, Washington |
| Operator/Owner: | Port of Friday Harbor |
| Airport Type: | Public |
| Elevation: | 113 feet (34 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from FRD |
| More Information: | FRD Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
Facts about Friday Harbor Airport (FRD):
- The closest airport to Friday Harbor Airport (FRD) is Friday Harbor Seaplane Base (FBS), which is located only 1 miles (2 kilometers) NNE of FRD.
- In addition to being known as "Friday Harbor Airport", another name for FRD is "FHR".
- Friday Harbor is the default airport of Microsoft Flight Simulator X.
- Friday Harbor Airport (FRD) currently has only 1 runway.
- The furthest airport from Friday Harbor Airport (FRD) is Tôlanaro Airport (FTU), which is located 10,726 miles (17,261 kilometers) away in Tôlanaro, Madagascar.
- Because of Friday Harbor Airport's relatively low elevation of 113 feet, planes can take off or land at Friday Harbor 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 5.72 miles (9.20 km) S | Lawton–Fort Sill Regional Airport (LAW) | Lawton, Oklahoma, United States |     |
| 2 | 28.03 miles (45.12 km) ESE | Halliburton Field (DUC) | Duncan, Oklahoma, United States | |
| 3 | 38.98 miles (62.73 km) WSW | Frederick Regional Airport (FDR) | Frederick, Oklahoma, United States | |
| 4 | 39.53 miles (63.61 km) NE | Chickasha Municipal Airport (CHK) | Chickasha, Oklahoma, United States | |
| 5 | 43.74 miles (70.39 km) WNW | Hobart Regional Airport (HBR) | Hobart, Oklahoma, United States | |
| 6 | 45.95 miles (73.94 km) S | Sheppard Air Force Base (SPS) | Wichita Falls, Texas, United States | |
| 7 | 49.22 miles (79.21 km) W | Altus Air Force Base (LTS) | Altus, Oklahoma, United States | |
| 8 | 53.30 miles (85.78 km) W | Altus/Quartz Mountain Regional Airport (AXS) | Altus, Oklahoma, United States | |
| 9 | 54.76 miles (88.12 km) S | Kickapoo Downtown Airport (KIP) | Wichita Falls, Texas, United States | |
| 10 | 65.69 miles (105.71 km) NW | Clinton-Sherman Industrial Airpark (CSM) | Clinton, Oklahoma, United States | |
| 11 | 66.85 miles (107.58 km) NE | University of Oklahoma Max Westheimer Airport (OUN) | Norman, Oklahoma, United States | |
| 12 | 68.33 miles (109.96 km) NNW | Clinton Regional Airport (CLK) | Clinton, Oklahoma, United States | |
| 13 | 68.51 miles (110.26 km) NE | Will Rogers World Airport (OKC) | Oklahoma City, Oklahoma, United States | |
| 14 | 74.55 miles (119.97 km) NE | Wiley Post Airport (PWA) | Oklahoma City, Oklahoma, United States | |
| 15 | 78.07 miles (125.64 km) NE | Tinker Air Force Base (TIK) | Oklahoma City, Oklahoma, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,920.33 miles (17,574.52 km) SE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,680.39 miles (17,188.37 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,614.31 miles (17,082.03 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 4 | 10,601.93 miles (17,062.12 km) ESE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 5 | 10,589.08 miles (17,041.43 km) ESE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,532.55 miles (16,950.46 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,512.35 miles (16,917.95 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,492.35 miles (16,885.76 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 9 | 10,478.49 miles (16,863.45 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 10 | 10,478.05 miles (16,862.75 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 11 | 10,472.77 miles (16,854.25 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,460.30 miles (16,834.17 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 13 | 10,458.62 miles (16,831.48 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 14 | 10,456.31 miles (16,827.76 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 15 | 10,452.67 miles (16,821.90 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 1.25 miles (2.02 km) NNE | Friday Harbor Seaplane Base (FBS) | Friday Harbor, Washington, United States | |
| 2 | 4.88 miles (7.86 km) E | Fishermans Bay/LPS Seaplane Base (LPS) | Lopez Island, Washington, United States | |
| 3 | 7.33 miles (11.79 km) NNE | Westsound Seaplane Base (WSX) | Westsound, Orcas Island, Washington, United States | |
| 4 | 8.58 miles (13.81 km) NW | Roche Harbor Seaplane Base (RCE) | San Juan Island, Washington, United States | |
| 5 | 9.10 miles (14.64 km) ESE | Center Island Airport (CWS) | Center Island, Washington, United States | |
| 6 | 11.14 miles (17.92 km) NE | Rosario Seaplane Base (RSJ) | Orcas Island, Washington, United States | |
| 7 | 13.87 miles (22.32 km) NNE | Orcas Island Airport (ESD) | Eastsound, Washington, United States | |
| 8 | 16.64 miles (26.79 km) E | Anacortes Airport (OTS) | Anacortes, Washington, United States | |
| 9 | 17.99 miles (28.95 km) WSW | Victoria Inner Harbour Airport (YWH) | Victoria, British Columbia, Canada | |
| 10 | 18.08 miles (29.10 km) NNW | Bedwell Harbour Water Aerodrome (YBW) | Bedwell Harbour, British Columbia, Canada | |
| 11 | 18.27 miles (29.40 km) WSW | Esquimalt Airport (YPF) | Esquimalt, British Columbia, Canada | |
| 12 | 20.29 miles (32.65 km) WNW | Victoria International Airport (YYJ) | Victoria, British Columbia, Canada | |
| 13 | 20.58 miles (33.12 km) SE | NAS Whidbey Island (NUW) | Oak Harbor, Washington, United States | |
| 14 | 24.65 miles (39.68 km) SE | A.J. Eisenberg Airport (ODW) | Oak Harbor, Washington, United States | |
| 15 | 26.95 miles (43.37 km) NNW | Mayne Island Water Aerodrome (YAV) | Miner's Bay, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,725.57 miles (17,261.09 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,661.47 miles (17,157.94 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,591.79 miles (17,045.79 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,584.66 miles (17,034.31 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,576.98 miles (17,021.96 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,555.49 miles (16,987.37 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 7 | 10,553.54 miles (16,984.23 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 10,548.37 miles (16,975.92 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,542.89 miles (16,967.10 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 10 | 10,537.32 miles (16,958.13 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,525.90 miles (16,939.76 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 12 | 10,522.96 miles (16,935.03 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,503.35 miles (16,903.46 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 14 | 10,495.44 miles (16,890.73 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 15 | 10,489.89 miles (16,881.80 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |