Air Miles Calculator

Distance between Chicago, IL (ORD) and Dayton, OH (DAY)

Flight distance from Chicago to Dayton (Chicago O'Hare International Airport – Dayton International Airport) is 240 miles / 387 kilometers / 209 nautical miles. Estimated flight time is 57 minutes.

Driving distance from Chicago (ORD) to Dayton (DAY) is 307 miles / 494 kilometers and travel time by car is about 5 hours 33 minutes.

Map of flight path and driving directions from Chicago to Dayton.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Dayton International Airport (DAY).

How far is Dayton from Chicago?

There are several ways to calculate distances between Chicago and Dayton. Here are two common methods:

Vincenty's formula (applied above)
  • 240.199 miles
  • 386.562 kilometers
  • 208.727 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
  • 239.913 miles
  • 386.103 kilometers
  • 208.479 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Dayton International Airport
City: Dayton, OH
Country: United States Flag of United States
IATA Code: DAY
ICAO Code: KDAY
Coordinates: 39°54′8″N, 84°13′9″W

Time difference and current local times

The time difference between Chicago and Dayton is 1 hour. Dayton is 1 hour ahead of Chicago.

Time Difference

Chicago, IL

 CDT

Dayton, OH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 60 kg (133 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Dayton (DAY).

Distance:
240
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
240

Round trip?