How far is Great Falls, MT, from Washington D.C.?
The distance between Washington D.C. (Ronald Reagan Washington National Airport) and Great Falls (Great Falls International Airport) is 1817 miles / 2924 kilometers / 1579 nautical miles.
The driving distance from Washington D.C. (DCA) to Great Falls (GTF) is 2085 miles / 3356 kilometers, and travel time by car is about 38 hours 27 minutes.
Ronald Reagan Washington National Airport – Great Falls International Airport
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Distance from Washington D.C. to Great Falls
There are several ways to calculate the distance from Washington D.C. to Great Falls. Here are two standard methods:
Vincenty's formula (applied above)- 1816.910 miles
- 2924.034 kilometers
- 1578.852 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- 1812.744 miles
- 2917.328 kilometers
- 1575.231 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 Washington D.C. to Great Falls?
The estimated flight time from Ronald Reagan Washington National Airport to Great Falls International Airport is 3 hours and 56 minutes.
What is the time difference between Washington D.C. and Great Falls?
Flight carbon footprint between Ronald Reagan Washington National Airport (DCA) and Great Falls International Airport (GTF)
On average, flying from Washington D.C. to Great Falls generates about 201 kg of CO2 per passenger, and 201 kilograms equals 444 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Washington D.C. to Great Falls
See the map of the shortest flight path between Ronald Reagan Washington National Airport (DCA) and Great Falls International Airport (GTF).
Airport information
| Origin | Ronald Reagan Washington National Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States  |
| IATA Code: | DCA |
| ICAO Code: | KDCA |
| Coordinates: | 38°51′7″N, 77°2′15″W |
| Destination | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |