# Distance between Washington D.C. (IAD) and Columbus, OH (CMH)

Flight distance from Washington D.C. to Columbus (Washington Dulles International Airport – John Glenn Columbus International Airport) is 300 miles / 482 kilometers / 260 nautical miles. Estimated flight time is 1 hour 4 minutes.

Driving distance from Washington D.C. (IAD) to Columbus (CMH) is 388 miles / 624 kilometers and travel time by car is about 7 hours 12 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and John Glenn Columbus International Airport (CMH).

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

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

Vincenty's formula (applied above)
• 299.553 miles
• 482.083 kilometers
• 260.304 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
• 298.884 miles
• 481.007 kilometers
• 259.723 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 Washington Dulles International Airport
City: Washington D.C.
Country: United States
Coordinates: 38°56′40″N, 77°27′20″W

B John Glenn Columbus International Airport
City: Columbus, OH
Country: United States
IATA Code: CMH
ICAO Code: KCMH
Coordinates: 39°59′52″N, 82°53′30″W

## Time difference and current local times

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

EDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 69 kg (152 pounds).

## Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Columbus (CMH).

Distance:
300
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
300

Round trip?