How far is Sumner, IA from Sioux City, IA?
The driving distance from Sumner, IA to Sioux City, IA is about 250.8 miles (403.7 km), with a travel time of about 04h 03m by car.
- The straight-line flight distance is about 220.2 miles (354.3 km).
- For a round trip, plan for roughly 08h 06m 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 04h 03m.
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 Webster County, Iowa, in the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Mostly Sunny
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sumner and Sioux City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumner and Sioux City.
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1
Start on East 1st Street
1.5 mi · 2 min · East 1st Street
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2
Continue on 140th Street
6.2 mi · 9 min · 140th Street
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3
Keep slight left to continue on Piedmont Avenue
2.3 mi · 3 min · Piedmont Avenue
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4
Continue on North Main Street
1.1 mi · 2 min · North Main Street
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5
Turn right onto 7th Avenue Southwest
2681 ft · 45 sec · 7th Avenue Southwest
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6
Continue on 170th Street
3.5 mi · 5 min · 170th Street
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7
Turn left onto Larrabee Avenue
11.3 mi · 13 min · Larrabee Avenue
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8
Continue on Logan Avenue
6.9 mi · 9 min · Logan Avenue
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9
Turn right onto West Airline Highway
3 mi · 5 min · West Airline Highway
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10
Turn left onto Airport Boulevard
786 ft · 21 sec · Airport Boulevard
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11
Take the ramp right toward US 218 north
2788 ft · 1 min
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12
Merge slight left onto Leo P Rooff Expressway
3116 ft · 41 sec · Leo P Rooff Expressway
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13
Take the exit slight right
1309 ft · 32 sec
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14
Keep slight left to continue on IA 27 South, IA 58 South: Hudson, UNI
1 mi · 2 min
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15
Merge slight left onto Avenue of the Saints
1.2 mi · 2 min · Avenue of the Saints
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16
Take the exit slight right toward University Avenue
1165 ft · 28 sec
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17
Keep slight right
102 m · 8 sec
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18
Turn straight onto University Avenue
1.8 mi · 3 min · University Avenue
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19
Enter the roundabout and take exit 2 toward University Avenue
38 m · 3 sec · University Avenue
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20
Exit the roundabout onto University Avenue
3.5 mi · 5 min · University Avenue
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21
Continue on Grundy Road
1.2 km · 1 min · Grundy Road
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22
Take the ramp right
2235 ft · 54 sec
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23
Merge slight left
199.2 mi · 3 hr 54 min
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24
Turn right onto South Fairmount Street
3033 ft · 1 min · South Fairmount Street
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25
Continue on 6th Street
1.5 km · 2 min · 6th Street
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26
Turn right onto Court Street
1199 ft · 39 sec · Court Street
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27
Turn left onto 9th Street
990 ft · 46 sec · 9th Street
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28
Turn right
35 m · 9 sec
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29
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Sumner and Sioux City.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Grundy Road
Merge slight left
199 mi · 03h 54m
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.
Chance Showers And Thunderstorms then Mostly Sunny leaving Sumner and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Sioux City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sumner to Sioux City?
The road trip is about 250.8 miles (403.7 km) and usually takes 04h 03m 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?
Duncombe is a useful midpoint, sitting about 123.8 miles from Sumner and 127.1 miles from Sioux City.
How much longer is the road route than the straight-line distance?
The direct path is about 220.2 miles (354.3 km), while the road route adds roughly 30.6 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 8:54 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $33.37 one way or $66.75 round trip. Estimated CO2 is about 78.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Mostly Sunny around Sumner and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Sioux City.
Flight Path Map
This map shows the direct air route between Sumner and Sioux City. Straight-line distance: 220.17 mi (354.33 km).
#1 Sumner
City in Bremer County, Iowa, United States of America
| Population | 1,965 |
| Coordinates | 42.8474800, -92.0915600 |
| Altitude | 323 |
| Country | United States |
#2 Sioux City
The second most populous city in Iowa.
| Population | 82,651 |
| Coordinates | 42.4999900, -96.4003100 |
| Altitude | 366 |
| Country | United States |
End: (-96.400135, 42.499991)
Estimated Travel Time
Distance: 404 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 21m |
| 40 mph (64.37 km/h) | 06h 16m |
| 50 mph (80.47 km/h) | 05h 00m |
| 60 mph (96.56 km/h) | 04h 10m |
| 70 mph (112.65 km/h) | 03h 35m |
| 80 mph (129 km/h) | 03h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $33.37 | $66.75 |
| Mid-grade | $4.25 | $37.64 | $75.28 |
| Premium | $4.65 | $41.19 | $82.38 |
| Diesel | $5.30 | $46.94 | $93.88 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.