Air Miles Calculator

Distance between St Louis, MO (STL) and Aspen, CO (ASE)

Flight distance from St Louis to Aspen (St. Louis Lambert International Airport – Aspen–Pitkin County Airport) is 888 miles / 1429 kilometers / 771 nautical miles. Estimated flight time is 2 hours 10 minutes.

Driving distance from St Louis (STL) to Aspen (ASE) is 1031 miles / 1659 kilometers and travel time by car is about 17 hours 21 minutes.

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

Shortest flight path between St. Louis Lambert International Airport (STL) and Aspen–Pitkin County Airport (ASE).

How far is Aspen from St Louis?

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

Vincenty's formula (applied above)
  • 887.646 miles
  • 1428.527 kilometers
  • 771.343 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
  • 885.483 miles
  • 1425.047 kilometers
  • 769.464 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 Aspen–Pitkin County Airport
City: Aspen, CO
Country: United States Flag of United States
IATA Code: ASE
ICAO Code: KASE
Coordinates: 39°13′23″N, 106°52′8″W

Time difference and current local times

The time difference between St Louis and Aspen is 1 hour. Aspen is 1 hour behind St Louis.

Time Difference

St Louis, MO

 CST

Aspen, CO

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 143 kg (314 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Aspen (ASE).

Distance:
888
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
888

Round trip?