Nonstop flight route between The Dalles, Oregon, United States and Sidney, Montana, United States:
Departure Airport:
(45°37'6"N by 121°10'1"W)
Arrival Airport:
(47°42'24"N by 104°11'32"W)
Distance from DLS to SDY:
816.01 miles (1,313.24 km)
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Jump to:
- About this route
- DLS Airport Information
- SDY Airport Information
- Facts about DLS
- Facts about SDY
- Map of Nearest Airports to DLS
- List of Nearest Airports to DLS
- Map of Furthest Airports from DLS
- List of Furthest Airports from DLS
- 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 Columbia Gorge Regional Airport (DLS), The Dalles, Oregon, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 816 miles (or 1,313 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 Columbia Gorge 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: | DLS / KDLS |
| Airport Names: |
|
| Location: | The Dalles, Oregon, United States |
| GPS Coordinates: | 45°37'6"N by 121°10'1"W |
| Area Served: | The Dalles, Oregon |
| Operator/Owner: | City of The Dalles, Oregon & Klickitat County, Washington |
| Airport Type: | Public |
| Elevation: | 247 feet (75 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from DLS |
| More Information: | DLS 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 Columbia Gorge Regional Airport (DLS):
- The furthest airport from Columbia Gorge Regional Airport (DLS) is Tôlanaro Airport (FTU), which is located 10,869 miles (17,492 kilometers) away in Tôlanaro, Madagascar.
- Columbia Gorge Regional Airport, also referred to as The Dalles Municipal Airport, is a public use airport in Klickitat County in the U.S.
- In addition to being known as "Columbia Gorge Regional Airport", another name for DLS is "The Dalles Municipal Airport".
- The closest airport to Columbia Gorge Regional Airport (DLS) is Cascade Locks State Airport (CZK), which is located 35 miles (56 kilometers) W of DLS.
- The airport covers an area of 997 acres at an elevation of 247 feet above mean sea level.
- Columbia Gorge Regional Airport (DLS) has 2 runways.
- Because of Columbia Gorge Regional Airport's relatively low elevation of 247 feet, planes can take off or land at Columbia Gorge 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.
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.61 miles (55.70 km) W | Cascade Locks State Airport (CZK) | Cascade Locks, Oregon, United States |     |
| 2 | 59.86 miles (96.33 km) W | Portland-Troutdale Airport (TTD) | Portland, Oregon, United States | |
| 3 | 65.53 miles (105.45 km) S | Madras Municipal AirportMadras Army Airfield (MDJ) | Madras, Oregon, United States | |
| 4 | 69.17 miles (111.32 km) W | Portland International Airport (PDX) | Portland, Oregon, United States | |
| 5 | 72.07 miles (115.99 km) NNE | Yakima Air Terminal (YKM) | Yakima, Washington, United States | |
| 6 | 80.14 miles (128.98 km) NNE | Vagabond Army Heliport (closed to fixed-wing aircraft) (FCT) | Yakima, Washington, United States | |
| 7 | 86.37 miles (139.00 km) W | Portland-Hillsboro Airport (HIO) | Hillsboro / Portland, Oregon, United States | |
| 8 | 90.15 miles (145.08 km) WNW | Southwest Washington Regional Airport (KLS) | Kelso, Washington, United States | |
| 9 | 92.91 miles (149.52 km) S | Prineville Airport (PRZ) | Prineville, Oregon, United States | |
| 10 | 93.17 miles (149.94 km) E | Hermiston Municipal Airport (HES) | Hermiston, Oregon, United States | |
| 11 | 94.28 miles (151.72 km) S | Roberts Field (RDM) | Redmond, Oregon, United States | |
| 12 | 98.48 miles (158.48 km) NW | South Lewis County Airport (TDO) | Toledo, Washington, United States | |
| 13 | 101.29 miles (163.00 km) ENE | Richland Airport (RLD) | Richland, Washington, United States | |
| 14 | 101.81 miles (163.85 km) WSW | McNary Field (SLE) | Salem, Oregon, United States | |
| 15 | 102.34 miles (164.70 km) NNE | Bowers Field (ELN) | Ellensburg, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,869.14 miles (17,492.15 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,792.21 miles (17,368.33 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,747.00 miles (17,295.57 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,717.89 miles (17,248.73 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,695.21 miles (17,212.23 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,648.53 miles (17,137.11 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,639.61 miles (17,122.75 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 8 | 10,631.41 miles (17,109.56 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 9 | 10,600.18 miles (17,059.29 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 10,590.96 miles (17,044.45 km) SSE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,581.43 miles (17,029.12 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 12 | 10,575.11 miles (17,018.94 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 13 | 10,574.17 miles (17,017.44 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 10,574.02 miles (17,017.19 km) SSE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 15 | 10,571.28 miles (17,012.78 km) SSE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 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 | |