Air Miles Calculator

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 Flag of 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 Flag of 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.

Time Difference

Columbus, OH

 EST

Dubuque, IA

 CST

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?