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How far is Washington D.C. from Quincy, IL?

The distance between Quincy (Quincy Regional Airport) and Washington D.C. (Washington Dulles International Airport) is 737 miles / 1187 kilometers / 641 nautical miles.

The driving distance from Quincy (UIN) to Washington D.C. (IAD) is 884 miles / 1422 kilometers, and travel time by car is about 16 hours 46 minutes.

Quincy Regional Airport – Washington Dulles International Airport

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737
Miles
Distance arrow
1187
Kilometers
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641
Nautical miles

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Distance from Quincy to Washington D.C.

There are several ways to calculate the distance from Quincy to Washington D.C.. Here are two standard methods:

Vincenty's formula (applied above)
  • 737.362 miles
  • 1186.669 kilometers
  • 640.750 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 735.568 miles
  • 1183.782 kilometers
  • 639.191 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Quincy to Washington D.C.?

The estimated flight time from Quincy Regional Airport to Washington Dulles International Airport is 1 hour and 53 minutes.

Flight carbon footprint between Quincy Regional Airport (UIN) and Washington Dulles International Airport (IAD)

On average, flying from Quincy to Washington D.C. generates about 129 kg of CO2 per passenger, and 129 kilograms equals 284 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Quincy to Washington D.C.

See the map of the shortest flight path between Quincy Regional Airport (UIN) and Washington Dulles International Airport (IAD).

Airport information

Origin Quincy Regional Airport
City: Quincy, IL
Country: United States Flag of United States
IATA Code: UIN
ICAO Code: KUIN
Coordinates: 39°56′33″N, 91°11′40″W
Destination Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W