# Distance between Knoxville, TN (TYS) and Washington D.C. (IAD)

Flight distance from Knoxville to Washington D.C. (Knoxville McGhee Tyson Airport – Washington Dulles International Airport) is 420 miles / 675 kilometers / 365 nautical miles. Estimated flight time is 1 hour 17 minutes.

Driving distance from Knoxville (TYS) to Washington D.C. (IAD) is 491 miles / 790 kilometers and travel time by car is about 8 hours 42 minutes.

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

Shortest flight path between Knoxville McGhee Tyson Airport (TYS) and Washington Dulles International Airport (IAD).

## How far is Washington D.C. from Knoxville?

There are several ways to calculate distances between Knoxville and Washington D.C.. Here are two common methods:

Vincenty's formula (applied above)
• 419.561 miles
• 675.218 kilometers
• 364.588 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
• 419.048 miles
• 674.392 kilometers
• 364.143 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).

## Airport information

A Knoxville McGhee Tyson Airport
City: Knoxville, TN
Country: United States
IATA Code: TYS
ICAO Code: KTYS
Coordinates: 35°48′39″N, 83°59′38″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States
Coordinates: 38°56′40″N, 77°27′20″W

## Time difference and current local times

There is no time difference between Knoxville and Washington D.C..

EDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 87 kg (191 pounds).

## Frequent Flyer Miles Calculator

Knoxville (TYS) → Washington D.C. (IAD).

Distance:
420
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
420

Round trip?