How far is Sioux City, IA from West Union, IA?
The driving distance from Sioux City, IA to West Union, IA is about 271.1 miles (436.3 km), with a travel time of about 05h 34m by car.
- The straight-line flight distance is about 235.2 miles (378.5 km).
- For a round trip, plan for roughly 11h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 05h 34m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Iowa
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Sioux City and West Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux City and West Union.
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1
Start on the route
35 m · 14 sec
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2
Turn left onto 9th Street
990 ft · 46 sec · 9th Street
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3
Turn right onto Court Street
767 ft · 27 sec · Court Street
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4
Turn left onto 7th Street
122 m · 19 sec · 7th Street
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5
Turn right onto Iowa Street
129 m · 24 sec · Iowa Street
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6
Turn left onto 6th Street
1.4 km · 2 min · 6th Street
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7
Continue on Fairmount Street
3030 ft · 1 min · Fairmount Street
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8
Turn left onto Gordon Drive
3.4 mi · 7 min · Gordon Drive
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9
Continue on Highway 20
39.4 mi · 47 min · Highway 20
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10
Continue on United States Highway 20
8.3 mi · 10 min · United States Highway 20
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11
Continue on 220th Street
148.1 mi · 2 hr 51 min · 220th Street
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12
Take the exit slight right toward CR D18: Cedar Falls
2133 ft · 1 min
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13
Turn left onto Grundy Road
1.6 km · 1 min · Grundy Road
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14
Continue on University Avenue
3.5 mi · 5 min · University Avenue
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15
Enter the roundabout and take exit 1 toward Greenhill Road
2 m · 1 sec · Greenhill Road
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16
Exit the roundabout onto Greenhill Road
1.2 mi · 2 min · Greenhill Road
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17
Turn left onto Avenue of the Saints
2.7 mi · 4 min · Avenue of the Saints
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18
Take the exit slight right toward US 218 South: Waterloo
1.4 km · 2 min
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19
Merge slight left onto Leo P Rooff Expressway
1.1 km · 48 sec · Leo P Rooff Expressway
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20
Take the exit slight right toward Broadway Street: Airport
2340 ft · 1 min
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21
Turn left onto Airport Boulevard
1496 ft · 36 sec · Airport Boulevard
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22
Turn right onto West Airline Highway
3 mi · 5 min · West Airline Highway
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23
Turn left onto Logan Avenue
6.9 mi · 8 min · Logan Avenue
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24
Continue on Larrabee Avenue
22.8 mi · 26 min · Larrabee Avenue
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25
Take the exit slight right
1912 ft · 57 sec
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26
At the end of the road, turn left onto 270th Street
5.4 mi · 7 min · 270th Street
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27
Continue on West Main Street
1.5 km · 1 min · West Main Street
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28
Continue on 270th Street
5.5 mi · 8 min · 270th Street
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29
Continue on 230th Street
13 mi · 18 min · 230th Street
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30
Continue on West Bradford Street
1.3 km · 1 min · West Bradford Street
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31
Turn right onto North Vine Street
160 m · 23 sec · North Vine Street
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32
Arrive at your destination
0 m · 1 sec · North Vine Street
Car Route Details
A richer read on the saved driving route between Sioux City and West Union.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
220th Street
Continue on 220th Street
148 mi · 02h 51m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Cloudy leaving Sioux City and Chance Rain Showers near West Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sioux City to West Union?
The road trip is about 271.1 miles (436.3 km) and usually takes 05h 34m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Webster City is a useful midpoint, sitting about 135.3 miles from Sioux City and 135.8 miles from West Union.
How much longer is the road route than the straight-line distance?
The direct path is about 235.2 miles (378.5 km), while the road route adds roughly 35.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:52 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.09 one way or $72.18 round trip. Estimated CO2 is about 85 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Sioux City and Chance Rain Showers near West Union.
Flight Path Map
This map shows the direct air route between Sioux City and West Union. Straight-line distance: 235.21 mi (378.53 km).
#1 Sioux City
The second most populous city in Iowa.
| Population | 82,651 |
| Coordinates | 42.4999900, -96.4003100 |
| Altitude | 366 |
| Country | United States |
#2 West Union
City in Iowa, United States
| Population | 2,270 |
| Coordinates | 42.9627600, -91.8082200 |
| Altitude | 362 |
| Country | United States |
End: West Union (-91.80822, 42.96276)
Estimated Travel Time
Distance: 436 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 02m |
| 40 mph (64.37 km/h) | 06h 46m |
| 50 mph (80.47 km/h) | 05h 25m |
| 60 mph (96.56 km/h) | 04h 31m |
| 70 mph (112.65 km/h) | 03h 52m |
| 80 mph (129 km/h) | 03h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $36.09 | $72.18 |
| Mid-grade | $4.25 | $40.70 | $81.40 |
| Premium | $4.65 | $44.54 | $89.08 |
| Diesel | $5.30 | $50.76 | $101.52 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Iowa · Apr 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.