Air Miles Calculator

Distance between St Louis, MO (STL) and Unalaska, AK (DUT)

Flight distance from St Louis to Unalaska (St. Louis Lambert International Airport – Unalaska Airport) is 3603 miles / 5798 kilometers / 3131 nautical miles. Estimated flight time is 7 hours 19 minutes.

Map of flight path from St Louis to Unalaska.

Shortest flight path between St. Louis Lambert International Airport (STL) and Unalaska Airport (DUT).

How far is Unalaska from St Louis?

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

Vincenty's formula (applied above)
  • 3602.725 miles
  • 5798.024 kilometers
  • 3130.683 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
  • 3593.480 miles
  • 5783.145 kilometers
  • 3122.648 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 Unalaska Airport
City: Unalaska, AK
Country: United States Flag of United States
IATA Code: DUT
ICAO Code: PADU
Coordinates: 53°54′0″N, 166°32′38″W

Time difference and current local times

The time difference between St Louis and Unalaska is 4 hours. Unalaska is 4 hours behind St Louis.

Time Difference

St Louis, MO

 CST

Unalaska, AK

 HST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 407 kg (898 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Unalaska (DUT).

Distance:
3603
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
3603

Round trip?