# 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
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
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.

CST

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?