Nonstop flight route between High Wycombe, Buckinghamshire, England, United Kingdom and SeaTac (near Seattle and Tacoma), Washington, United States:
Departure Airport:

Arrival Airport:

Distance from HYC to SEA:
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- About this route
- HYC Airport Information
- SEA Airport Information
- Facts about HYC
- Facts about SEA
- Map of Nearest Airports to HYC
- List of Nearest Airports to HYC
- Map of Furthest Airports from HYC
- List of Furthest Airports from HYC
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
About this route:
A direct, nonstop flight between RAF High Wycombe (HYC), High Wycombe, Buckinghamshire, England, United Kingdom and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 4,765 miles (or 7,669 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 RAF High Wycombe and Seattle–Tacoma International Airport, 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 RAF High Wycombe and Seattle–Tacoma International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | HYC / EGUH |
Airport Name: | RAF High Wycombe |
Location: | High Wycombe, Buckinghamshire, England, United Kingdom |
GPS Coordinates: | 51°40'53"N by 0°48'6"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from HYC |
More Information: | HYC Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SEA / KSEA |
Airport Names: |
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Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
GPS Coordinates: | 47°26'56"N by 122°18'33"W |
Area Served: | Seattle; Tacoma, Washington, US |
Airport Type: | Public |
Elevation: | 433 feet (132 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEA |
More Information: | SEA Maps & Info |
Facts about RAF High Wycombe (HYC):
- An Armed Forces Community Covenant between the station and Wycombe District Council was signed on 16 April 2012, designed to strengthen the links between the military and the local community.
- Prior to the outbreak of the Second World War, the Air Ministry sought a safe location for RAF Bomber Command away from London.
- RAF High Wycombe is a Royal Air Force station, situated in the village of Walters Ash, near High Wycombe in Buckinghamshire, England.
- The Ministry of Defence and Serco Group agreed a ten-year contract in February 2010 whereby Serco would provide support services at RAF High Wycombe and RAF Halton, including leisure services, general engineering and catering.
- From 1983 to 1984 there was a peace camp protesting against the building of a bunker there at that time to house RAF Strike Command.
- Operationally during the Cold War the Director UKWMO would have been located at the United Kingdom Regional Air Operations Command within Strike Command's Operations Centre nuclear bunker at RAF High Wycombe to instigate the national Four minute air raid warnings, with the Deputy Director located at a standby UK RAOC, described at the time as being "elsewhere in the UK", but has since been revealed as being at Goosnargh near Preston within the UKWMO Western Sector nuclear bunker.
- Since 2009, the station has been responsible for reviewing UFO sightings as part of efforts to identify any possible unauthorised military incursions into UK airspace.
- The closest airport to RAF High Wycombe (HYC) is RAF Benson (BEX), which is located only 13 miles (22 kilometers) WSW of HYC.
- The furthest airport from RAF High Wycombe (HYC) is Dunedin International Airport (DUD), which is located 11,867 miles (19,098 kilometers) away in Dunedin, Otago, New Zealand.
Facts about Seattle–Tacoma International Airport (SEA):
- The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
- The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
- Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- Seattle's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
- In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
- The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.