Air Miles Calculator

Distance between Wichita Falls, TX (SPS) and Duluth, MN (DLH)

Flight distance from Wichita Falls to Duluth (Wichita Falls Regional Airport – Duluth International Airport) is 946 miles / 1523 kilometers / 822 nautical miles. Estimated flight time is 2 hours 17 minutes.

Driving distance from Wichita Falls (SPS) to Duluth (DLH) is 1079 miles / 1736 kilometers and travel time by car is about 18 hours 14 minutes.

Map of flight path and driving directions from Wichita Falls to Duluth.

Shortest flight path between Wichita Falls Regional Airport (SPS) and Duluth International Airport (DLH).

How far is Duluth from Wichita Falls?

There are several ways to calculate distances between Wichita Falls and Duluth. Here are two common methods:

Vincenty's formula (applied above)
  • 946.225 miles
  • 1522.801 kilometers
  • 822.247 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
  • 947.072 miles
  • 1524.164 kilometers
  • 822.983 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 Wichita Falls Regional Airport
City: Wichita Falls, TX
Country: United States Flag of United States
IATA Code: SPS
ICAO Code: KSPS
Coordinates: 33°59′19″N, 98°29′30″W

B Duluth International Airport
City: Duluth, MN
Country: United States Flag of United States
IATA Code: DLH
ICAO Code: KDLH
Coordinates: 46°50′31″N, 92°11′36″W

Time difference and current local times

There is no time difference between Wichita Falls and Duluth.

Time Difference

Wichita Falls, TX

 CST

Duluth, MN

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 147 kg (324 pounds).

Frequent Flyer Miles Calculator

Wichita Falls (SPS) → Duluth (DLH).

Distance:
946
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
946

Round trip?