Nonstop flight route between London, England, United Kingdom and Seward, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from LHR to SWD:
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- About this route
- LHR Airport Information
- SWD Airport Information
- Facts about LHR
- Facts about SWD
- Map of Nearest Airports to LHR
- List of Nearest Airports to LHR
- Map of Furthest Airports from LHR
- List of Furthest Airports from LHR
- Map of Nearest Airports to SWD
- List of Nearest Airports to SWD
- Map of Furthest Airports from SWD
- List of Furthest Airports from SWD
About this route:
A direct, nonstop flight between London Heathrow Airport (LHR), London, England, United Kingdom and Seward Airport (SWD), Seward, Alaska, United States would travel a Great Circle distance of 4,535 miles (or 7,298 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 Heathrow Airport and Seward 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 London Heathrow Airport and Seward Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | LHR / EGLL |
Airport Name: | London Heathrow Airport |
Location: | London, England, United Kingdom |
GPS Coordinates: | 51°28'38"N by 0°27'41"W |
Area Served: | London, United Kingdom |
Operator/Owner: | Heathrow Airport Holdings |
Airport Type: | Public |
Elevation: | 83 feet (25 meters) |
# of Runways: | 2 |
View all routes: | Routes from LHR |
More Information: | LHR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SWD / PAWD |
Airport Name: | Seward Airport |
Location: | Seward, Alaska, United States |
GPS Coordinates: | 60°7'36"N by 149°25'8"W |
Area Served: | Seward, Alaska |
Operator/Owner: | Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 22 feet (7 meters) |
# of Runways: | 2 |
View all routes: | Routes from SWD |
More Information: | SWD Maps & Info |
Facts about London Heathrow Airport (LHR):
- Terminal 3 opened as The Oceanic Terminal on 13 November 1961 to handle flight departures for long-haul routes.
- London Heathrow Airport (LHR) has 2 runways.
- The original 1950s red-brick control tower was demolished in early 2013 to enable access roads for the new Terminal 2 to be laid.
- Because of London Heathrow Airport's relatively low elevation of 83 feet, planes can take off or land at London Heathrow 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 London Heathrow Airport (LHR) is Chatham Islands (CHT), which is located 11,875 miles (19,112 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Until 2008, air traffic between Heathrow and the United States was strictly governed by the countries' bilateral Bermuda II treaty.
- As the airport is west of London and as its runways run east–west, an airliner's landing approach is usually directly over the conurbation of London when the wind is from the west.
- Policing of the airport is the responsibility of the aviation security unit of the Metropolitan Police, although the army, including armoured vehicles of the Household Cavalry, has occasionally been deployed at the airport during periods of heightened security.
- The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.
Facts about Seward Airport (SWD):
- Because of Seward Airport's relatively low elevation of 22 feet, planes can take off or land at Seward 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.
- Seward Airport (SWD) has 2 runways.
- The furthest airport from Seward Airport (SWD) is Port Elizabeth International Airport (PLZ), which is located 10,617 miles (17,086 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Seward Airport (SWD) is Chenega Bay Airport (NCN), which is located 49 miles (79 kilometers) E of SWD.
- Seward Airport covers an area of 302 acres at an elevation of 22 feet above mean sea level.