Map of flight path and driving directions from Columbus to Dubuque.
Shortest flight path between John Glenn Columbus International Airport (CMH) and Dubuque Regional Airport (DBQ).
How far is Dubuque from Columbus?
There are several ways to calculate distances between Columbus and Dubuque. Here are two common methods:Vincenty's formula (applied above)
- 439.719 miles
- 707.659 kilometers
- 382.105 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
- 438.828 miles
- 706.225 kilometers
- 381.331 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
The time difference between Columbus and Dubuque is 1 hour. Dubuque is 1 hour behind Columbus.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 90 kg (198 pounds).
Frequent Flyer Miles Calculator
Columbus (CMH) → Dubuque (DBQ).