Air Miles Calculator

Distance between Sioux City, IA (SUX) and Seattle, WA (SEA)

Flight distance from Sioux City to Seattle (Sioux Gateway Airport – Seattle–Tacoma International Airport) is 1312 miles / 2111 kilometers / 1140 nautical miles. Estimated flight time is 2 hours 59 minutes.

Driving distance from Sioux City (SUX) to Seattle (SEA) is 1628 miles / 2620 kilometers and travel time by car is about 25 hours 57 minutes.

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

Shortest flight path between Sioux Gateway Airport (SUX) and Seattle–Tacoma International Airport (SEA).

How far is Seattle from Sioux City?

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

Vincenty's formula (applied above)
  • 1311.791 miles
  • 2111.124 kilometers
  • 1139.916 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
  • 1308.451 miles
  • 2105.748 kilometers
  • 1137.013 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 Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

Time difference and current local times

The time difference between Sioux City and Seattle is 2 hours. Seattle is 2 hours behind Sioux City.

Time Difference

Sioux City, IA

 CST

Seattle, WA

 PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 168 kg (370 pounds).

Frequent Flyer Miles Calculator

Sioux City (SUX) → Seattle (SEA).

Distance:
1312
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1312

Round trip?