Nonstop flight route between Rockland, Maine, United States and Suffield, Alberta, Canada:
Departure Airport:
(44°3'36"N by 69°5'57"W)
Arrival Airport:
(50°16'23"N by 111°10'29"W)
Distance from RKD to YSD:
1,994.46 miles (3,209.77 km)
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Jump to:
- About this route
- RKD Airport Information
- YSD Airport Information
- Facts about RKD
- Facts about YSD
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
- Map of Nearest Airports to YSD
- List of Nearest Airports to YSD
- Map of Furthest Airports from YSD
- List of Furthest Airports from YSD
About this route:
A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and CFB Suffield (YSD), Suffield, Alberta, Canada would travel a Great Circle distance of 1,994 miles (or 3,210 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 Knox County Regional Airport and CFB Suffield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | RKD / KRKD |
| Airport Name: | Knox County Regional Airport |
| Location: | Rockland, Maine, United States |
| GPS Coordinates: | 44°3'36"N by 69°5'57"W |
| Area Served: | Rockland, Maine |
| Operator/Owner: | Knox County |
| Airport Type: | Public |
| Elevation: | 56 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKD |
| More Information: | RKD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | YSD / CYSD |
| Airport Name: | CFB Suffield |
| Location: | Suffield, Alberta, Canada |
| GPS Coordinates: | 50°16'23"N by 111°10'29"W |
| Operator/Owner: | Government of Canada |
| Airport Type: | Military |
| Elevation: | 2525 feet (770 meters) |
| View all routes: | Routes from YSD |
| More Information: | YSD Maps & Info |
Facts about Knox County Regional Airport (RKD):
- Knox County Regional Airport is a county owned, public use airport in Knox County, Maine, United States.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County 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.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
- Knox County Regional Airport (RKD) has 2 runways.
- Owls Head Transportation Museum is also situated at the airport on an older third runway.
Facts about CFB Suffield (YSD):
- The decision to designate the Suffield Block a military training facility in 1941 left tens of square kilometres of undisturbed prairie grassland intact from the effects of industrial agriculture.
- The closest airport to CFB Suffield (YSD) is Medicine Hat Airport (YXH), which is located 27 miles (43 kilometers) SE of YSD.
- The furthest airport from CFB Suffield (YSD) is Tôlanaro Airport (FTU), which is located 10,339 miles (16,640 kilometers) away in Tôlanaro, Madagascar.
- Following the fall of Algeria to Nazi Germany, the British Army required a new training facility for carrying out experiments in chemical warfare.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 31.23 miles (50.26 km) WSW | Wiscasset Airport (ISS) | Wiscasset, Maine, United States |     |
| 2 | 38.99 miles (62.74 km) WNW | Augusta State Airport (AUG) | Augusta, Maine, United States | |
| 3 | 43.32 miles (69.71 km) WSW | Naval Air Station Brunswick (NHZ) | Brunswick, Maine, United States | |
| 4 | 43.38 miles (69.82 km) NW | Waterville Robert Lafleur Airport (WVL) | Waterville, Maine, United States | |
| 5 | 45.35 miles (72.99 km) NE | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 53.33 miles (85.83 km) NNE | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 7 | 58.82 miles (94.66 km) W | Auburn/Lewiston Municipal Airport (LEW) | Auburn/Lewiston, Maine, United States | |
| 8 | 59.05 miles (95.03 km) NW | Central Maine Airport of Norridgewock (OWK) | Norridgewock, Maine, United States | |
| 9 | 65.12 miles (104.80 km) NNE | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 10 | 66.73 miles (107.38 km) WSW | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 11 | 91.96 miles (148.00 km) W | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 12 | 92.58 miles (148.99 km) WSW | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 13 | 108.65 miles (174.86 km) WNW | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 14 | 109.11 miles (175.59 km) NE | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 15 | 109.78 miles (176.68 km) SW | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,707.78 miles (18,841.79 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,704.56 miles (18,836.61 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,701.73 miles (18,832.06 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,680.66 miles (18,798.16 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,655.50 miles (18,757.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,634.75 miles (18,724.26 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,567.46 miles (18,615.98 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,566.96 miles (18,615.17 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 11,555.62 miles (18,596.91 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,511.65 miles (18,526.16 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,459.54 miles (18,442.29 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,374.24 miles (18,305.01 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,372.20 miles (18,301.73 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,361.85 miles (18,285.08 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,361.47 miles (18,284.47 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 26.71 miles (42.99 km) SE | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 2 | 84.80 miles (136.47 km) WSW | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 3 | 122.13 miles (196.55 km) NE | Kindersley Regional Airport (YKY) | Kindersley, Saskatchewan, Canada | |
| 4 | 123.74 miles (199.15 km) SSW | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 5 | 125.03 miles (201.22 km) N | Coronation Airport (YCT) | Coronation, Alberta, Canada | |
| 6 | 127.06 miles (204.49 km) SSW | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 7 | 135.37 miles (217.85 km) SSE | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| 8 | 135.94 miles (218.78 km) WSW | Pincher Creek Airport (WPC) | Pincher Creek, Alberta, Canada | |
| 9 | 137.03 miles (220.53 km) WSW | Cowley Airport (YYM) | Cowley, Alberta, Canada | |
| 10 | 137.36 miles (221.07 km) WNW | Calgary International Airport (YYC) | Calgary, Alberta, Canada | |
| 11 | 144.76 miles (232.96 km) N | Vermilion Airport (YVG) | Vermilion, Alberta, Canada | |
| 12 | 153.82 miles (247.55 km) E | Swift Current Airport (YYN) | Swift Current, Saskatchewan, Canada | |
| 13 | 174.82 miles (281.35 km) N | Wainwright Aerodrome (YWV) | Wainwright, Alberta, Canada | |
| 14 | 176.72 miles (284.41 km) NW | Red Deer Regional Airport (YQF) | Red Deer, Alberta, Canada | |
| 15 | 191.29 miles (307.86 km) S | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,339.33 miles (16,639.50 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,307.65 miles (16,588.51 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,307.15 miles (16,587.70 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 4 | 10,286.72 miles (16,554.83 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,280.75 miles (16,545.23 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,251.37 miles (16,497.93 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,140.27 miles (16,319.14 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,121.78 miles (16,289.38 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,052.05 miles (16,177.17 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 10,050.04 miles (16,173.93 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,049.62 miles (16,173.25 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 12 | 10,039.80 miles (16,157.45 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,033.11 miles (16,146.69 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 14 | 10,031.69 miles (16,144.40 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,021.70 miles (16,128.32 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |