Distance between Washington D.C. (IAD) and Johnstown, PA (JST)
Distance from Washington D.C. to Johnstown (Washington Dulles International Airport – Johnstown–Cambria County Airport) is 120 miles / 193 kilometers / 104 nautical miles.
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Washington D.C. - Johnstown
How far is Johnstown from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Johnstown. Here are two common methods:
Vincenty's formula (applied above)- 119.824 miles
- 192.838 kilometers
- 104.124 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.
Haversine formula- 119.825 miles
- 192.840 kilometers
- 104.125 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).
Flight duration
Estimated flight time from Washington Dulles International Airport (IAD) to Johnstown–Cambria County Airport (JST) is 43 minutes.
Time difference and current local times
There is no time difference between Washington D.C. and Johnstown.
Time Difference
Washington D.C.
Johnstown, PA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 42 kg (92 pounds).
Airport information
| A | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States  |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |
| B | Johnstown–Cambria County Airport |
|---|---|
| City: | Johnstown, PA |
| Country: | United States |
| IATA Code: | JST |
| ICAO Code: | KJST |
| Coordinates: | 40°18′57″N, 78°50′2″W |
Washington D.C. to Johnstown flight path
Shortest flight path between Washington Dulles International Airport (IAD) and Johnstown–Cambria County Airport (JST).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Johnstown (JST).
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