Nonstop flight route between Suffield, Alberta, Canada and Seattle, Washington, United States:
Departure Airport:
(50°16'23"N by 111°10'29"W)
Arrival Airport:
(47°31'48"N by 122°18'6"W)
Distance from YSD to BFI:
539.10 miles (867.60 km)
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Jump to:
- About this route
- YSD Airport Information
- BFI Airport Information
- Facts about YSD
- Facts about BFI
- Map of Nearest Airports to YSD
- List of Nearest Airports to YSD
- Map of Furthest Airports from YSD
- List of Furthest Airports from YSD
- Map of Nearest Airports to BFI
- List of Nearest Airports to BFI
- Map of Furthest Airports from BFI
- List of Furthest Airports from BFI
About this route:
A direct, nonstop flight between CFB Suffield (YSD), Suffield, Alberta, Canada and King County International Airport (BFI), Seattle, Washington, United States would travel a Great Circle distance of 539 miles (or 868 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 CFB Suffield and King County International Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | BFI / KBFI |
| Airport Names: |
|
| Location: | Seattle, Washington, United States |
| GPS Coordinates: | 47°31'48"N by 122°18'6"W |
| Area Served: | Seattle, Washington |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from BFI |
| More Information: | BFI Maps & Info |
Facts about CFB Suffield (YSD):
- 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.
- Canadian Forces Base Suffield is the largest Canadian Forces Base and the largest Commonwealth military training base in the world.
- Following the fall of Algeria to Nazi Germany, the British Army required a new training facility for carrying out experiments in chemical warfare.
- Defence Research and Development Canada is an agency of the Canadian Department of National Defence responding to the scientific and technological needs of the Canadian Forces.
Facts about King County International Airport (BFI):
- In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
- The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
- Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County International 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.
- King County International Airport (BFI) has 2 runways.
- The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.
- The August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
- At one point Aeroamerica scheduled a Boeing 720 to Spokane.
- Boeing Field as seen from the Air Traffic Control Tower
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 4.76 miles (7.66 km) ESE | Renton Municipal Airport (RNT) | Renton, Washington, United States | |
| 2 | 5.62 miles (9.04 km) S | Seattle–Tacoma International Airport (SEA) | SeaTac (near Seattle and Tacoma), Washington, United States | |
| 3 | 7.04 miles (11.33 km) NNW | Kenmore Air Harbor Seaplane Base (LKE) | Seattle, Washington, United States | |
| 4 | 15.65 miles (25.19 km) N | Kenmore Air (KEH) | Kenmore, Washington, United States | |
| 5 | 21.77 miles (35.04 km) W | Bremerton National Airport (PWT) | Bremerton, Washington, United States | |
| 6 | 22.23 miles (35.78 km) SW | Tacoma Narrows Airport (TIW) | Tacoma, Washington, United States | |
| 7 | 26.00 miles (41.85 km) N | Paine Field (PAE) | Everett, Washington, United States | |
| 8 | 28.30 miles (45.55 km) SSW | McChord Field/McChord AFB (TCM) | Tacoma, Washington, United States | |
| 9 | 33.78 miles (54.36 km) SSW | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 10 | 43.22 miles (69.55 km) NNW | Jefferson County International AirportPort Townsend Army Airfield (TWD) | Port Townsend, Washington, United States | |
| 11 | 44.54 miles (71.69 km) WSW | Sanderson Field (SHN) | Shelton, Washington, United States | |
| 12 | 47.89 miles (77.07 km) SW | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 13 | 52.75 miles (84.90 km) NNW | A.J. Eisenberg Airport (ODW) | Oak Harbor, Washington, United States | |
| 14 | 55.59 miles (89.46 km) ESE | Easton State Airport (ESW) | Easton, Washington, United States | |
| 15 | 56.81 miles (91.43 km) NW | Sequim Valley Airport (SQV) | Sequim, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,775.32 miles (17,341.16 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,706.76 miles (17,230.83 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,621.55 miles (17,093.68 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,592.12 miles (17,046.32 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,590.11 miles (17,043.08 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,588.22 miles (17,040.05 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 7 | 10,570.73 miles (17,011.90 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 8 | 10,564.37 miles (17,001.66 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 9 | 10,557.66 miles (16,990.87 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 10 | 10,554.58 miles (16,985.90 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 11 | 10,550.10 miles (16,978.71 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,544.57 miles (16,969.80 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 13 | 10,540.24 miles (16,962.83 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 14 | 10,533.70 miles (16,952.30 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 15 | 10,530.85 miles (16,947.72 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |