Nonstop flight route between Eau Claire, Wisconsin, United States and Sidney, Montana, United States:
Departure Airport:
(44°51'56"N by 91°29'3"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from EAU to SDY:
636.88 miles (1,024.95 km)
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Jump to:
- About this route
- EAU Airport Information
- SDY Airport Information
- Facts about EAU
- Facts about SDY
- Map of Nearest Airports to EAU
- List of Nearest Airports to EAU
- Map of Furthest Airports from EAU
- List of Furthest Airports from EAU
- 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 Chippewa Valley Regional Airport (EAU), Eau Claire, Wisconsin, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 637 miles (or 1,025 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 Chippewa Valley Regional Airport 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: | EAU / KEAU |
| Airport Name: | Chippewa Valley Regional Airport |
| Location: | Eau Claire, Wisconsin, United States |
| GPS Coordinates: | 44°51'56"N by 91°29'3"W |
| Area Served: | Eau Claire, Wisconsin |
| Operator/Owner: | Eau Claire County |
| Airport Type: | Public |
| Elevation: | 913 feet (278 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from EAU |
| More Information: | EAU 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 Chippewa Valley Regional Airport (EAU):
- Because of Chippewa Valley Regional Airport's relatively low elevation of 913 feet, planes can take off or land at Chippewa Valley 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.
- Throughout the years, numerous airlines have served Eau Claire including North Central Airlines, Republic Airlines, Lakeland Airlines, Northwest Airlines, Mesaba Airlines, Skyway Airlines, Air Wisconsin, American Central Airlines, Great Lakes Aviation, Big Sky Airlines and Charter Airlines.
- The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service facility.
- The 2013 Federal sequester will result in the closure of the airport's control tower and will require pilots to rely on the Minneapolis ARTCC and pilot-to-pilot radio communication.
- The furthest airport from Chippewa Valley Regional Airport (EAU) is Margaret River Airport (MGV), which is located 10,839 miles (17,444 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Chippewa Valley Regional Airport (EAU) is Rice Lake Regional Airport (RIE), which is located 41 miles (66 kilometers) NNW of EAU.
- Chippewa Valley Regional Airport (EAU) has 2 runways.
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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 40.80 miles (65.66 km) NNW | Rice Lake Regional Airport (RIE) | Rice Lake, Wisconsin, United States |     |
| 2 | 52.09 miles (83.84 km) WNW | Amery Municipal Airport (AHH) | Amery, Wisconsin, United States | |
| 3 | 55.09 miles (88.66 km) WNW | New Richmond Regional Airport (RNH) | New Richmond, Wisconsin, United States | |
| 4 | 55.60 miles (89.47 km) SSW | Winona Municipal Airport (ONA) | Winona, Minnesota, United States | |
| 5 | 60.08 miles (96.68 km) ENE | Taylor County Airport (MDF) | Medford, Wisconsin, United States | |
| 6 | 65.47 miles (105.36 km) ESE | Marshfield Municipal Airport (MFI) | Marshfield, Wisconsin, United States | |
| 7 | 66.33 miles (106.74 km) WNW | L.O. Simenstad Municipal Airport (OEO) | Osceola, Wisconsin, United States | |
| 8 | 69.09 miles (111.19 km) S | La Crosse Regional Airport (LSE) | La Crosse, Wisconsin, United States | |
| 9 | 72.72 miles (117.03 km) SSE | Sparta/Fort McCoy Airport (CMY) | Sparta, Wisconsin, United States | |
| 10 | 74.97 miles (120.66 km) NE | Prentice Airport (PRW) | Prentice, Wisconsin, United States | |
| 11 | 77.27 miles (124.35 km) W | St. Paul Downtown Airport (STP) | St. Paul, Minnesota, United States | |
| 12 | 79.97 miles (128.70 km) WSW | Stanton Airfield (SYN) | Stanton, Minnesota, United States | |
| 13 | 80.13 miles (128.96 km) N | Sawyer County Airport (HYR) | Hayward, Wisconsin, United States | |
| 14 | 83.02 miles (133.61 km) SW | Rochester International Airport (RST) | Rochester, Minnesota, United States | |
| 15 | 85.08 miles (136.92 km) W | Minneapolis–Saint Paul International Airport Wold–Chamberlain Airport (MSP) | Bloomington, Minnesota, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,839.19 miles (17,443.95 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,815.37 miles (17,405.61 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,804.21 miles (17,387.65 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,789.84 miles (17,364.52 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,751.56 miles (17,302.92 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,737.70 miles (17,280.61 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,726.15 miles (17,262.02 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,715.40 miles (17,244.72 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,710.72 miles (17,237.18 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,682.38 miles (17,191.59 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,625.59 miles (17,100.19 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,589.79 miles (17,042.57 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,588.07 miles (17,039.81 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,575.05 miles (17,018.85 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,525.09 miles (16,938.45 km) SW | Shark Bay Airport (MJK) | Monkey Mia, 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 | |