About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Riyan Airport (MKX), Mukalla, Yemen would travel a Great Circle distance of 8,427 miles (or 13,562 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 Henry Post Army Airfield and Riyan 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 Henry Post Army Airfield and Riyan Airport. You'll see that it will travel the same route of the red line on this map!

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: MKX /
Airport Names:
  1. Riyan Airport
  2. RIY
  3. OYRN
  4. RIY
Location: Mukalla, Yemen
GPS Coordinates: 14°39'44"N by 49°22'30"E
Area Served: Mukalla
Airport Type: Public
Elevation: 54 feet (16 meters)
# of Runways: 1
View all routes: Routes from MKX
More Information: MKX Maps & Info

Facts about Henry Post Army Airfield (FSI):

  • Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
  • There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
  • The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
  • Henry Post Army Airfield (FSI) currently has only 1 runway.
  • With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
  • 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.
  • 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.
  • The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.

Facts about Riyan Airport (MKX):

  • The closest airport to Riyan Airport (MKX) is Sayun AirportSeiyun Airport (GXF), which is located 98 miles (158 kilometers) NNW of MKX.
  • The furthest airport from Riyan Airport (MKX) is Pukarua Airport (PUK), which is located 11,945 miles (19,223 kilometers) away in Pukarua, Tuamotus, French Polynesia.
  • Riyan Airport (MKX) currently has only 1 runway.
  • Because of Riyan Airport's relatively low elevation of 54 feet, planes can take off or land at Riyan 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.
  • In addition to being known as "Riyan Airport", other names for MKX include "RIY", "OYRN" and "RIY".

Map of Nearest Airports to Henry Post Army Airfield:

List of Nearest Airports to Henry Post Army Airfield:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
15.72 miles (9.20 km) SLawton–Fort Sill Regional Airport (LAW)Lawton, Oklahoma, United StatesView Lawton–Fort Sill Regional Airport on a map Set LAW as origin Airport Set LAW as destination Airport Get more information about Lawton–Fort Sill Regional Airport
228.03 miles (45.12 km) ESEHalliburton Field (DUC)Duncan, Oklahoma, United StatesView Halliburton Field on a map Set DUC as origin Airport Set DUC as destination Airport Get more information about Halliburton Field
338.98 miles (62.73 km) WSWFrederick Regional Airport (FDR)Frederick, Oklahoma, United StatesView Frederick Regional Airport on a map Set FDR as origin Airport Set FDR as destination Airport Get more information about Frederick Regional Airport
439.53 miles (63.61 km) NEChickasha Municipal Airport (CHK)Chickasha, Oklahoma, United StatesView Chickasha Municipal Airport on a map Set CHK as origin Airport Set CHK as destination Airport Get more information about Chickasha Municipal Airport
543.74 miles (70.39 km) WNWHobart Regional Airport (HBR)Hobart, Oklahoma, United StatesView Hobart Regional Airport on a map Set HBR as origin Airport Set HBR as destination Airport Get more information about Hobart Regional Airport
645.95 miles (73.94 km) SSheppard Air Force Base (SPS)Wichita Falls, Texas, United StatesView Sheppard Air Force Base on a map Set SPS as origin Airport Set SPS as destination Airport Get more information about Sheppard Air Force Base
749.22 miles (79.21 km) WAltus Air Force Base (LTS)Altus, Oklahoma, United StatesView Altus Air Force Base on a map Set LTS as origin Airport Set LTS as destination Airport Get more information about Altus Air Force Base
853.30 miles (85.78 km) WAltus/Quartz Mountain Regional Airport (AXS)Altus, Oklahoma, United StatesView Altus/Quartz Mountain Regional Airport on a map Set AXS as origin Airport Set AXS as destination Airport Get more information about Altus/Quartz Mountain Regional Airport
954.76 miles (88.12 km) SKickapoo Downtown Airport (KIP)Wichita Falls, Texas, United StatesView Kickapoo Downtown Airport on a map Set KIP as origin Airport Set KIP as destination Airport Get more information about Kickapoo Downtown Airport
1065.69 miles (105.71 km) NWClinton-Sherman Industrial Airpark (CSM)Clinton, Oklahoma, United StatesView Clinton-Sherman Industrial Airpark on a map Set CSM as origin Airport Set CSM as destination Airport Get more information about Clinton-Sherman Industrial Airpark
1166.85 miles (107.58 km) NEUniversity of Oklahoma Max Westheimer Airport (OUN)Norman, Oklahoma, United StatesView University of Oklahoma Max Westheimer Airport on a map Set OUN as origin Airport Set OUN as destination Airport Get more information about University of Oklahoma Max Westheimer Airport
1268.33 miles (109.96 km) NNWClinton Regional Airport (CLK)Clinton, Oklahoma, United StatesView Clinton Regional Airport on a map Set CLK as origin Airport Set CLK as destination Airport Get more information about Clinton Regional Airport
1368.51 miles (110.26 km) NEWill Rogers World Airport (OKC)Oklahoma City, Oklahoma, United StatesView Will Rogers World Airport on a map Set OKC as origin Airport Set OKC as destination Airport Get more information about Will Rogers World Airport
1474.55 miles (119.97 km) NEWiley Post Airport (PWA)Oklahoma City, Oklahoma, United StatesView Wiley Post Airport on a map Set PWA as origin Airport Set PWA as destination Airport Get more information about Wiley Post Airport
1578.07 miles (125.64 km) NETinker Air Force Base (TIK)Oklahoma City, Oklahoma, United StatesView Tinker Air Force Base on a map Set TIK as origin Airport Set TIK as destination Airport Get more information about Tinker Air Force Base

Map of Furthest Airports from Henry Post Army Airfield:

List of Furthest Airports from Henry Post Army Airfield:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,920.33 miles (17,574.52 km) SESir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as origin Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval Airport
210,680.39 miles (17,188.37 km) ESESir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as origin Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
310,614.31 miles (17,082.03 km) SWCocos (Keeling) Island Airport (CCK)Cocos Islands, AustraliaView Cocos (Keeling) Island Airport on a map Set CCK as origin Airport Set CCK as destination Airport Get more information about Cocos (Keeling) Island Airport
410,601.93 miles (17,062.12 km) ESEPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as origin Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
510,589.08 miles (17,041.43 km) ESERoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as origin Airport Set RUN as destination Airport Get more information about Roland Garros Airport
610,532.55 miles (16,950.46 km) WMargaret River Airport (MGV)Margaret River, Western Australia, AustraliaView Margaret River Airport on a map Set MGV as origin Airport Set MGV as destination Airport Get more information about Margaret River Airport
710,512.35 miles (16,917.95 km) WBusselton Regional Airport (BQB)Busselton, Western Australia, AustraliaView Busselton Regional Airport on a map Set BQB as origin Airport Set BQB as destination Airport Get more information about Busselton Regional Airport
810,492.35 miles (16,885.76 km) WBunbury Airport (BUY)Bunbury, Western Australia, AustraliaView Bunbury Airport on a map Set BUY as origin Airport Set BUY as destination Airport Get more information about Bunbury Airport
910,478.49 miles (16,863.45 km) WManjimup Airport (MJP)Manjimup, Western Australia, AustraliaView Manjimup Airport on a map Set MJP as origin Airport Set MJP as destination Airport Get more information about Manjimup Airport
1010,478.05 miles (16,862.75 km) WRottnest Airport (RTS)Rottnest Island, Western Australia, AustraliaView Rottnest Airport on a map Set RTS as origin Airport Set RTS as destination Airport Get more information about Rottnest Airport
1110,472.77 miles (16,854.25 km) WJurien Bay Airport (JUR)Jurien Bay, Western Australia, AustraliaView Jurien Bay Airport on a map Set JUR as origin Airport Set JUR as destination Airport Get more information about Jurien Bay Airport
1210,460.30 miles (16,834.17 km) WJandakot Airport (JAD)Jandakot, Western Australia, AustraliaView Jandakot Airport on a map Set JAD as origin Airport Set JAD as destination Airport Get more information about Jandakot Airport
1310,458.62 miles (16,831.48 km) WGeraldton Airport (GET)Geraldton, Western Australia, AustraliaView Geraldton Airport on a map Set GET as origin Airport Set GET as destination Airport Get more information about Geraldton Airport
1410,456.31 miles (16,827.76 km) WKalbarri Airport (KAX)Kalbarri, Western Australia, AustraliaView Kalbarri Airport on a map Set KAX as origin Airport Set KAX as destination Airport Get more information about Kalbarri Airport
1510,452.67 miles (16,821.90 km) WPerth Airport (PER)Perth, Western Australia, AustraliaView Perth Airport on a map Set PER as origin Airport Set PER as destination Airport Get more information about Perth Airport

Map of Nearest Airports to Riyan Airport:

List of Nearest Airports to Riyan Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
198.20 miles (158.03 km) NNWSayun AirportSeiyun Airport (GXF)Seiyun, YemenView Sayun AirportSeiyun Airport on a map Set GXF as destination Airport Set GXF as destination Airport Get more information about Sayun AirportSeiyun Airport
2170.59 miles (274.54 km) WAtaq Airport (AXK)Ataq, YemenView Ataq Airport on a map Set AXK as destination Airport Set AXK as destination Airport Get more information about Ataq Airport
3208.39 miles (335.37 km) SSEAlula Airport (ALU)Alula, SomaliaView Alula Airport on a map Set ALU as destination Airport Set ALU as destination Airport Get more information about Alula Airport
4214.34 miles (344.95 km) ENEAl Ghaydha Airport (AAY)Al Ghaydah, YemenView Al Ghaydha Airport on a map Set AAY as destination Airport Set AAY as destination Airport Get more information about Al Ghaydha Airport
5221.82 miles (356.98 km) SCandala Airport (CXN)Candala, SomaliaView Candala Airport on a map Set CXN as destination Airport Set CXN as destination Airport Get more information about Candala Airport
6234.50 miles (377.40 km) SBender Qassim International Airport (BSA)Boosaaso, SomaliaView Bender Qassim International Airport on a map Set BSA as destination Airport Set BSA as destination Airport Get more information about Bender Qassim International Airport
7244.38 miles (393.29 km) WBeihan Airport (BHN)Beihan, YemenView Beihan Airport on a map Set BHN as destination Airport Set BHN as destination Airport Get more information about Beihan Airport
8308.37 miles (496.27 km) SSWErigavo Airport (ERA)Erigavo, SomaliaView Erigavo Airport on a map Set ERA as destination Airport Set ERA as destination Airport Get more information about Erigavo Airport
9317.98 miles (511.74 km) WSWAden International Airport (ADE)Aden, YemenView Aden International Airport on a map Set ADE as destination Airport Set ADE as destination Airport Get more information about Aden International Airport
10348.50 miles (560.86 km) WEl Rahaba Airport (Sana'a International) (SAH)Sana'a, YemenView El Rahaba Airport (Sana'a International) on a map Set SAH as destination Airport Set SAH as destination Airport Get more information about El Rahaba Airport (Sana'a International)
11353.90 miles (569.54 km) ENESalalah Airport (SLL)Salalah, OmanView Salalah Airport on a map Set SLL as destination Airport Set SLL as destination Airport Get more information about Salalah Airport
12357.17 miles (574.80 km) WTa'izz International Airport (TAI)Ta'izz, YemenView Ta'izz International Airport on a map Set TAI as destination Airport Set TAI as destination Airport Get more information about Ta'izz International Airport
13386.87 miles (622.61 km) WNWNajran Domestic Airport (EAM)Najran (Nejran), Saudi ArabiaView Najran Domestic Airport on a map Set EAM as destination Airport Set EAM as destination Airport Get more information about Najran Domestic Airport
14420.20 miles (676.24 km) SWBerbera Airport (BBO)Berbera, SomaliaView Berbera Airport on a map Set BBO as destination Airport Set BBO as destination Airport Get more information about Berbera Airport
15427.65 miles (688.23 km) WHodeida International Airport (HOD)Al Hudaydah (Hodeida), YemenView Hodeida International Airport on a map Set HOD as destination Airport Set HOD as destination Airport Get more information about Hodeida International Airport

Map of Furthest Airports from Riyan Airport:

List of Furthest Airports from Riyan Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,944.59 miles (19,222.90 km) ESEPukarua Airport (PUK)Pukarua, Tuamotus, French PolynesiaView Pukarua Airport on a map Set PUK as destination Airport Set PUK as destination Airport Get more information about Pukarua Airport
211,811.01 miles (19,007.93 km) ESENukutavake Airport (NUK)Nukutavake, Tuamotus, French PolynesiaView Nukutavake Airport on a map Set NUK as destination Airport Set NUK as destination Airport Get more information about Nukutavake Airport
311,791.82 miles (18,977.05 km) SSETotegegie Airport (GMR)Mangareva, Gambier Islands, French PolynesiaView Totegegie Airport on a map Set GMR as destination Airport Set GMR as destination Airport Get more information about Totegegie Airport
411,777.30 miles (18,953.68 km) ESEAtuona Airport (AUQ)Atuona, Marquesas Islands, French PolynesiaView Atuona Airport on a map Set AUQ as destination Airport Set AUQ as destination Airport Get more information about Atuona Airport
511,765.35 miles (18,934.44 km) SETureira Airport (ZTA)Tureia, Tuamotus, French PolynesiaView Tureira Airport on a map Set ZTA as destination Airport Set ZTA as destination Airport Get more information about Tureira Airport
611,748.13 miles (18,906.73 km) EFangatau Airport (FGU)Fangatau, French PolynesiaView Fangatau Airport on a map Set FGU as destination Airport Set FGU as destination Airport Get more information about Fangatau Airport
711,713.31 miles (18,850.70 km) ESEHao Airport (HOI)Hao, Tuamotu Island, French PolynesiaView Hao Airport on a map Set HOI as destination Airport Set HOI as destination Airport Get more information about Hao Airport
811,641.49 miles (18,735.11 km) ERaroia Airport (RRR)Raroia, French PolynesiaView Raroia Airport on a map Set RRR as destination Airport Set RRR as destination Airport Get more information about Raroia Airport
911,559.85 miles (18,603.72 km) EMakemo Airport (MKP)Makemo, French PolynesiaView Makemo Airport on a map Set MKP as destination Airport Set MKP as destination Airport Get more information about Makemo Airport
1011,431.11 miles (18,396.55 km) ESEAnaa Airport (AAA)Anaa, Tuamotus, French PolynesiaView Anaa Airport on a map Set AAA as destination Airport Set AAA as destination Airport Get more information about Anaa Airport
1111,430.91 miles (18,396.22 km) EFakarava Airport (FAV)Fakarava, Society Islands, French PolynesiaView Fakarava Airport on a map Set FAV as destination Airport Set FAV as destination Airport Get more information about Fakarava Airport
1211,403.90 miles (18,352.76 km) EManihi Airport (XMH)Manihi, French PolynesiaView Manihi Airport on a map Set XMH as destination Airport Set XMH as destination Airport Get more information about Manihi Airport
1311,391.43 miles (18,332.69 km) EAhe Airport (AHE)Ahe, French PolynesiaView Ahe Airport on a map Set AHE as destination Airport Set AHE as destination Airport Get more information about Ahe Airport
1411,382.00 miles (18,317.51 km) EApataki Airport (APK)Apataki, French PolynesiaView Apataki Airport on a map Set APK as destination Airport Set APK as destination Airport Get more information about Apataki Airport
1511,368.54 miles (18,295.84 km) EArutua Airport (AXR)Arutua, Tuamotus, French PolynesiaView Arutua Airport on a map Set AXR as destination Airport Set AXR as destination Airport Get more information about Arutua Airport