# Distance between Columbus, OH (CMH) and Dubuque, IA (DBQ)

Flight distance from Columbus to Dubuque (John Glenn Columbus International Airport – Dubuque Regional Airport) is 440 miles / 708 kilometers / 382 nautical miles. Estimated flight time is 1 hour 19 minutes.

Driving distance from Columbus (CMH) to Dubuque (DBQ) is 547 miles / 881 kilometers and travel time by car is about 9 hours 35 minutes.

## 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).

## Airport information

A 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

B Dubuque Regional Airport
City: Dubuque, IA
Country: United States
IATA Code: DBQ
ICAO Code: KDBQ
Coordinates: 42°24′7″N, 90°42′34″W

## Time difference and current local times

The time difference between Columbus and Dubuque is 1 hour. Dubuque is 1 hour behind Columbus.

EDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 90 kg (198 pounds).

## Frequent Flyer Miles Calculator

Columbus (CMH) → Dubuque (DBQ).

Distance:
440
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
440

Round trip?