Air Miles Calculator

Distance between St Louis, MO (STL) and Dayton, OH (DAY)

Flight distance from St Louis to Dayton (St. Louis Lambert International Airport – Dayton International Airport) is 339 miles / 545 kilometers / 295 nautical miles. Estimated flight time is 1 hour 8 minutes.

Driving distance from St Louis (STL) to Dayton (DAY) is 362 miles / 583 kilometers and travel time by car is about 6 hours 24 minutes.

Map of flight path and driving directions from St Louis to Dayton.

Shortest flight path between St. Louis Lambert International Airport (STL) and Dayton International Airport (DAY).

How far is Dayton from St Louis?

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

Vincenty's formula (applied above)
  • 338.943 miles
  • 545.477 kilometers
  • 294.534 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
  • 338.185 miles
  • 544.255 kilometers
  • 293.874 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 St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″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 St Louis and Dayton is 1 hour. Dayton is 1 hour ahead of St Louis.

Time Difference

St Louis, MO

 CDT

Dayton, OH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 75 kg (165 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Dayton (DAY).

Distance:
339
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
339

Round trip?