Nonstop flight route between Southend, Essex (near London) United Kingdom and Orcas Island, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from SEN to RSJ:
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- About this route
- SEN Airport Information
- RSJ Airport Information
- Facts about SEN
- Facts about RSJ
- Map of Nearest Airports to SEN
- List of Nearest Airports to SEN
- Map of Furthest Airports from SEN
- List of Furthest Airports from SEN
- Map of Nearest Airports to RSJ
- List of Nearest Airports to RSJ
- Map of Furthest Airports from RSJ
- List of Furthest Airports from RSJ
About this route:
A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and Rosario Seaplane Base (RSJ), Orcas Island, Washington, United States would travel a Great Circle distance of 4,756 miles (or 7,654 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 large distance between London Southend Airport and Rosario Seaplane Base, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between London Southend Airport and Rosario Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SEN / EGMC |
Airport Name: | London Southend Airport |
Location: | Southend, Essex (near London) United Kingdom |
GPS Coordinates: | 51°34'13"N by 0°41'35"E |
Area Served: | Southend, Essex and east London areas |
Operator/Owner: | Stobart Group |
Airport Type: | Public |
Elevation: | 55 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from SEN |
More Information: | SEN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | RSJ / |
Airport Names: |
|
Location: | Orcas Island, Washington, United States |
GPS Coordinates: | 48°38'44"N by 122°52'5"W |
Area Served: | Rosario, Washington |
Operator/Owner: | Rosario Resort |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 2 |
View all routes: | Routes from RSJ |
More Information: | RSJ Maps & Info |
Facts about London Southend Airport (SEN):
- Southend Airport has an excellent weather record and is used by airlines as a diversion alternative when adverse weather or incidents close other London airports.
- London Southend Airport (SEN) currently has only 1 runway.
- Because of London Southend Airport's relatively low elevation of 55 feet, planes can take off or land at London Southend 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.
- Annual passenger traffic first peaked in 1967, at 692,000.
- London Southend Airport handled 969,912 passengers last year.
- In 1946, the airfield was decommissioned from military use and civil aviation returned in 1947, as did the Southend Municipal Airport name.
- The furthest airport from London Southend Airport (SEN) is Chatham Islands (CHT), which is located 11,885 miles (19,126 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The former terminal now houses facilities for business passengers flying executive aircraft, with lounges and conference rooms, plus flight briefing facilities for pilots and a security checkpoint.
- The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
Facts about Rosario Seaplane Base (RSJ):
- Because of Rosario Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Rosario Seaplane Base 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 closest airport to Rosario Seaplane Base (RSJ) is Westsound Seaplane Base (WSX), which is located only 4 miles (7 kilometers) WSW of RSJ.
- The furthest airport from Rosario Seaplane Base (RSJ) is Tôlanaro Airport (FTU), which is located 10,715 miles (17,244 kilometers) away in Tôlanaro, Madagascar.
- In addition to being known as "Rosario Seaplane Base", another name for RSJ is "W49".
- Rosario Seaplane Base (RSJ) has 2 runways.