Map of flight path and driving directions from Washington D.C. to Ithaca.
Shortest flight path between Washington Dulles International Airport (IAD) and Ithaca Tompkins Regional Airport (ITH).
How far is Ithaca from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Ithaca. Here are two common methods:Vincenty's formula (applied above)
- 250.251 miles
- 402.740 kilometers
- 217.462 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
- 250.539 miles
- 403.204 kilometers
- 217.713 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).
Time difference and current local times
There is no time difference between Washington D.C. and Ithaca.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 62 kg (136 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Ithaca (ITH).