Air Miles Calculator

Distance between Sioux City, IA (SUX) and Grand Forks, ND (GFK)

Flight distance from Sioux City to Grand Forks (Sioux Gateway Airport – Grand Forks International Airport) is 385 miles / 620 kilometers / 335 nautical miles. Estimated flight time is 1 hour 13 minutes.

Driving distance from Sioux City (SUX) to Grand Forks (GFK) is 410 miles / 660 kilometers and travel time by car is about 6 hours 26 minutes.

Map of flight path and driving directions from Sioux City to Grand Forks.

Shortest flight path between Sioux Gateway Airport (SUX) and Grand Forks International Airport (GFK).

How far is Grand Forks from Sioux City?

There are several ways to calculate distances between Sioux City and Grand Forks. Here are two common methods:

Vincenty's formula (applied above)
  • 384.975 miles
  • 619.557 kilometers
  • 334.534 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
  • 385.169 miles
  • 619.870 kilometers
  • 334.703 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 Sioux Gateway Airport
City: Sioux City, IA
Country: United States Flag of United States
IATA Code: SUX
ICAO Code: KSUX
Coordinates: 42°24′9″N, 96°23′3″W

B Grand Forks International Airport
City: Grand Forks, ND
Country: United States Flag of United States
IATA Code: GFK
ICAO Code: KGFK
Coordinates: 47°56′57″N, 97°10′33″W

Time difference and current local times

There is no time difference between Sioux City and Grand Forks.

Time Difference

Sioux City, IA

 CST

Grand Forks, ND

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 82 kg (180 pounds).

Frequent Flyer Miles Calculator

Sioux City (SUX) → Grand Forks (GFK).

Distance:
385
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
385

Round trip?