Nonstop flight route between Washington, D.C. / Virginia, United States and Islip, New York, United States:
Departure Airport:

Arrival Airport:

Distance from IAD to ISP:
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- About this route
- IAD Airport Information
- ISP Airport Information
- Facts about IAD
- Facts about ISP
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
- Map of Nearest Airports to ISP
- List of Nearest Airports to ISP
- Map of Furthest Airports from ISP
- List of Furthest Airports from ISP
About this route:
A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Long Island MacArthur Airport (ISP), Islip, New York, United States would travel a Great Circle distance of 264 miles (or 425 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 Washington Dulles International Airport and Long Island MacArthur Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IAD / KIAD |
Airport Name: | Washington Dulles International Airport |
Location: | Washington, D.C. / Virginia, United States |
GPS Coordinates: | 38°56'39"N by 77°27'20"W |
Area Served: | Washington metropolitan area |
Airport Type: | Public |
Elevation: | 313 feet (95 meters) |
# of Runways: | 5 |
View all routes: | Routes from IAD |
More Information: | IAD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ISP / KISP |
Airport Name: | Long Island MacArthur Airport |
Location: | Islip, New York, United States |
GPS Coordinates: | 40°47'43"N by 73°6'1"W |
Area Served: | Long Island, New York metro area |
Airport Type: | Public |
Elevation: | 99 feet (30 meters) |
# of Runways: | 4 |
View all routes: | Routes from ISP |
More Information: | ISP Maps & Info |
Facts about Washington Dulles International Airport (IAD):
- The closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
- Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles 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.
- Concourse A consists of a permanent ground level set of gates designed for small planes such as regional jets and several former B concourse gates.
- Traffic by calendar year
- Washington Dulles International Airport is a public airport in Dulles, Virginia, 26 miles west of downtown Washington, D.C.
- The main terminal was recognized by the American Institute of Architects in 1966 for its design concept.
- The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
- Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.
- Passengers connecting to the Shenandoah Valley can use the Shenandoah Valley Commuter Bus, which connects to the Vienna and Rosslyn Metro station.
- Washington Dulles International Airport (IAD) has 5 runways.
Facts about Long Island MacArthur Airport (ISP):
- Because of Long Island MacArthur Airport's relatively low elevation of 99 feet, planes can take off or land at Long Island MacArthur 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 Long Island MacArthur Airport (ISP) is Margaret River Airport (MGV), which is located 11,783 miles (18,963 kilometers) away in Margaret River, Western Australia, Australia.
- The Suffolk County Police Aviation Section has a Law Enforcement and MEDEVAC helicopter based at MacArthur Airport.
- Suffolk Transit's S57 route serves the airport, connecting it with Sayville and the Smith Haven Mall, located in Lake Grove, New York.
- The FAA designated LIMA an Official Metro Airport in early 2011, meaning it is now grouped with LaGuardia, JFK and Newark in travel and informational searches for New York airports, providing better exposure to the traveling public.
- Continental Express and Continental Connection had non-stops to Albany and to Cleveland but ended them in 2005.
- Long Island MacArthur Airport (ISP) has 4 runways.
- In 2004 MacArthur Airport embarked on an expansion that included a Southwest Airlines terminal built by the airline at a cost of $65 million.
- The closest airport to Long Island MacArthur Airport (ISP) is Long Island MacArthur Airport (HAP), which is located only 0 mile (0 kilometer) N of ISP.
- Long Island MacArthur Airport is a public airport on Long Island, in Ronkonkoma, Town of Islip, Suffolk County, New York.