Nonstop flight route between New York City, New York, United States and Seattle, Washington, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from LGA to BFI:
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- About this route
- LGA Airport Information
- BFI Airport Information
- Facts about LGA
- Facts about BFI
- Map of Nearest Airports to LGA
- List of Nearest Airports to LGA
- Map of Furthest Airports from LGA
- List of Furthest Airports from LGA
- 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 LaGuardia Airport (LGA), New York City, New York, United States and King County International Airport (BFI), Seattle, Washington, United States would travel a Great Circle distance of 2,405 miles (or 3,871 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 LaGuardia Airport 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: | LGA / KLGA | 
| Airport Name: | LaGuardia Airport | 
| Location: | New York City, New York, United States | 
| GPS Coordinates: | 40°46'38"N by 73°52'21"W | 
| Area Served: | New York City | 
| Operator/Owner: | City of New York | 
| Airport Type: | Public | 
| Elevation: | 21 feet (6 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from LGA | 
| More Information: | LGA 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 LaGuardia Airport (LGA):
- LaGuardia opened with four runways at 45-degree angles to each other, the longest being 6,000 ft.
- LaGuardia Airport (LGA) has 2 runways.
- The Marine Air Terminal was the airport's original terminal for overseas flights.
- LaGuardia's traffic continued to grow.
- The furthest airport from LaGuardia Airport (LGA) is Margaret River Airport (MGV), which is located 11,754 miles (18,917 kilometers) away in Margaret River, Western Australia, Australia.
- Because of LaGuardia Airport's relatively low elevation of 21 feet, planes can take off or land at LaGuardia 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 airport was dedicated on October 15, 1939, as the New York Municipal Airport and opened for business on December 2 of that year.
- The New York City metropolitan area's JFK International, LaGuardia, and Newark Liberty International airports combine to create the largest airport system in the United States, second in the world in terms of passenger traffic, and first in the world in terms of total flight operations.
- The closest airport to LaGuardia Airport (LGA) is Flushing Airport (closed 1984) (FLU), which is located only 2 miles (3 kilometers) E of LGA.
- During the Floyd Bennett experiment La Guardia and American executives began an alternative plan to build a new airport in Queens, where it could take advantage of the new Queens–Midtown Tunnel to Manhattan.
- The terminal was connected to Terminal C by a 600-foot walkway that opened in early 2013, part of Delta's effort to build a hub at LaGuardia.
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 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 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.
- Helijet, a helicopter airline based at Vancouver International Airport in British Columbia, scheduled Sikorsky S-76s to the Victoria Harbour Heliport in British Columbia and on to Helijet's Vancouver Harbour Heliport near downtown Vancouver, B.C.
- The transfer of ownership of Boeing Field from King County to the Port of Seattle was proposed in 2007 as part of a land swap with land owned by the Port.
- The initial assembly of the 737 was at Boeing Field in the 1960s because the factory in Renton was at capacity building the 707 and 727.
- Boeing Field has no scheduled passenger jet flights.
- King County International Airport (BFI) has 2 runways.
- 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.




