Nonstop flight route between Houston, Texas, United States and Sidney, Montana, United States:
Departure Airport:
(29°36'25"N by 95°9'32"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from EFD to SDY:
1,339.96 miles (2,156.45 km)
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Jump to:
- About this route
- EFD Airport Information
- SDY Airport Information
- Facts about EFD
- Facts about SDY
- Map of Nearest Airports to EFD
- List of Nearest Airports to EFD
- Map of Furthest Airports from EFD
- List of Furthest Airports from EFD
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), Houston, Texas, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 1,340 miles (or 2,156 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 Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field and Sidney-Richland Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | EFD / KEFD |
| Airport Names: |
|
| Location: | Houston, Texas, United States |
| GPS Coordinates: | 29°36'25"N by 95°9'32"W |
| View all routes: | Routes from EFD |
| More Information: | EFD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SDY / KSDY |
| Airport Name: | Sidney-Richland Municipal Airport |
| Location: | Sidney, Montana, United States |
| GPS Coordinates: | 47°42'24"N by 104°11'32"W |
| Area Served: | Sidney, Montana |
| Operator/Owner: | Sidney Richland Airport Authority |
| Airport Type: | Public |
| Elevation: | 1985 feet (605 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SDY |
| More Information: | SDY Maps & Info |
Facts about Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD):
- In 1952, Air Training Command expanded the training program at Ellington with the establishment of a multi-engine flying training program as part of Flying Training Air Force.
- In May 1923, the War Department had ordered the small caretaker force at Ellington Field to dismantle all remaining structures and to sell them as surplus.
- The furthest airport from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is Cocos (Keeling) Island Airport (CCK), which is located 11,008 miles (17,716 kilometers) away in Cocos Islands, Australia.
- The base, which consisted of a few hangars and some wooden headquarters buildings, was completed in a matter of months.
- World War II, with its increasing need for trained pilots, helped to reestablish Ellington Field as an active facility.
- In addition to being known as "Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field", another name for EFD is "Ellington Field JRB".
- The closest airport to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is William P. Hobby Airport (HOU), which is located only 8 miles (12 kilometers) WNW of EFD.
Facts about Sidney-Richland Municipal Airport (SDY):
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
Map of Nearest Airports to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field:
List of Nearest Airports to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field:
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 7.68 miles (12.36 km) WNW | William P. Hobby Airport (HOU) | Houston, Texas, United States |     |
| 2 | 17.49 miles (28.14 km) NE | Baytown Airport (HPY) | Baytown, Texas, United States | |
| 3 | 26.58 miles (42.78 km) WNW | Andrau Airpark (AAP) | Houston, Texas, United States | |
| 4 | 28.27 miles (45.49 km) NNW | George Bush Intercontinental Airport (IAH) | Houston, Texas, United States | |
| 5 | 29.67 miles (47.75 km) SE | Scholes International Airport at Galveston (GLS) | Galveston, Texas, United States | |
| 6 | 29.92 miles (48.15 km) W | Sugar Land Regional Airport (SGR) | Sugar Land, Texas (near Houston), United States | |
| 7 | 34.10 miles (54.88 km) WNW | West Houston Airport (IWS) | Houston, Texas, United States | |
| 8 | 38.99 miles (62.75 km) SSW | Texas Gulf Coast Regional Airport (LJN) | Angleton / Lake Jackson, Texas, United States | |
| 9 | 39.30 miles (63.25 km) NW | David Wayne Hooks Memorial Airport (DWH) | Houston, Texas, United States | |
| 10 | 53.72 miles (86.45 km) NNW | Lone Star Executive Airport (CXO) | Houston, Texas, United States | |
| 11 | 60.99 miles (98.16 km) SW | Bay City Municipal Airport (BBC) | Bay City, Texas, United States | |
| 12 | 64.67 miles (104.08 km) WSW | Wharton Regional Airport (WHT) | Wharton, Texas, United States | |
| 13 | 64.99 miles (104.59 km) ENE | Beaumont Municipal Airport (BMT) | Beaumont, Texas, United States | |
| 14 | 72.28 miles (116.32 km) ENE | Jack Brooks Regional Airport (BPT) | Beaumont/Port Arthur, Texas, United States | |
| 15 | 82.80 miles (133.25 km) NNW | Bruce Brothers Huntsville Regional Airport (HTV) | Huntsville, Texas, United States | |
Map of Furthest Airports from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field:
List of Furthest Airports from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field:
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,008.37 miles (17,716.21 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 10,929.94 miles (17,589.99 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 3 | 10,665.67 miles (17,164.68 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 4 | 10,652.84 miles (17,144.05 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 5 | 10,641.07 miles (17,125.11 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 6 | 10,640.71 miles (17,124.52 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 7 | 10,639.60 miles (17,122.74 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 8 | 10,632.80 miles (17,111.79 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,627.60 miles (17,103.42 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 10 | 10,624.09 miles (17,097.78 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 11 | 10,613.57 miles (17,080.85 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 12 | 10,608.21 miles (17,072.22 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 13 | 10,593.93 miles (17,049.23 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,588.32 miles (17,040.21 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,587.45 miles (17,038.81 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 41.33 miles (66.52 km) NE | Sloulin Field International Airport (ISN) | Williston, North Dakota, United States | |
| 2 | 48.66 miles (78.31 km) SW | Dawson Community Airport (GDV) | Glendive, Montana, United States | |
| 3 | 69.41 miles (111.70 km) WNW | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 4 | 76.29 miles (122.77 km) NNW | Sher-Wood Airport (PWD) | Plentywood, Montana, United States | |
| 5 | 90.57 miles (145.76 km) SE | Dickinson Theodore Roosevelt Regional Airport (DIK) | Dickinson, North Dakota, United States | |
| 6 | 111.04 miles (178.70 km) SSE | Bowman Municipal Airport (BWM) | Bowman, North Dakota, United States | |
| 7 | 117.38 miles (188.91 km) WNW | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 8 | 118.10 miles (190.06 km) NNE | Estevan Regional Aerodrome (YEN) | Estevan, Saskatchewan, Canada | |
| 9 | 118.99 miles (191.50 km) SW | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 10 | 131.42 miles (211.49 km) W | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 11 | 139.74 miles (224.89 km) ENE | Minot Air Force Base (MIB) | Minot, North Dakota, United States | |
| 12 | 140.05 miles (225.38 km) ENE | Minot International Airport (MOT) | Minot, North Dakota, United States | |
| 13 | 174.07 miles (280.14 km) ESE | Bismarck Municipal Airport (BIS) | Bismarck, North Dakota, United States | |
| 14 | 189.51 miles (304.99 km) N | Regina International Airport (YQR) | Regina, Saskatchewan, Canada | |
| 15 | 191.53 miles (308.24 km) NNW | CFB Moose Jaw (YMJ) | Moose Jaw, Saskatchewan, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,383.49 miles (16,710.57 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,297.57 miles (16,572.29 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,290.39 miles (16,560.74 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,266.41 miles (16,522.14 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,218.50 miles (16,445.05 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,203.17 miles (16,420.36 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,179.29 miles (16,381.94 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,169.42 miles (16,366.06 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 9 | 10,153.64 miles (16,340.65 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 10 | 10,120.11 miles (16,286.69 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 10,113.85 miles (16,276.63 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 12 | 10,100.83 miles (16,255.67 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 13 | 10,089.33 miles (16,237.15 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,078.56 miles (16,219.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,076.48 miles (16,216.49 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |