How far is O'Neill, NE from South Sioux City, NE?
The driving distance from O'Neill, NE to South Sioux City, NE is about 124.5 miles (200.3 km), with a travel time of about 02h 09m by car.
- The straight-line flight distance is about 113.8 miles (183.2 km).
- For a round trip, plan for roughly 04h 19m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 09m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Town in Nebraska, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between O'Neill and South Sioux City.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Neill and South Sioux City.
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1
Start on East Douglas Street
3191 ft · 1 min · East Douglas Street
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2
Continue on Highway 20/275
12.4 mi · 15 min · Highway 20/275
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3
Continue on Highway 20
10.6 mi · 12 min · Highway 20
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4
Continue on 2nd Street
1.5 km · 2 min · 2nd Street
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5
Continue on Highway 20
5.3 mi · 6 min · Highway 20
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6
Continue on 1st Street
1807 ft · 28 sec · 1st Street
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7
Continue on Highway 20
16.5 mi · 19 min · Highway 20
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8
Continue on West Park Avenue
1.3 mi · 3 min · West Park Avenue
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9
Continue on Highway 20
8.8 mi · 10 min · Highway 20
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10
Continue on Front Street
1.1 km · 1 min · Front Street
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11
Continue on Highway 20
20.3 mi · 24 min · Highway 20
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12
Continue on 1st Street
2087 ft · 35 sec · 1st Street
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13
Continue on Highway 20
5.6 mi · 7 min · Highway 20
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14
Continue on Willow Street
1615 ft · 34 sec · Willow Street
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15
Continue on Highway 20
30.1 mi · 35 min · Highway 20
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16
Continue on West Elk Street
2600 ft · 1 min · West Elk Street
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17
Continue on Highway 20
6.4 mi · 7 min · Highway 20
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18
Take the exit slight right toward US 77 North: Sioux City
1131 ft · 37 sec
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19
Continue on Highway 77
1.6 mi · 3 min · Highway 77
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20
Turn right onto West 21st Street
1 km · 1 min · West 21st Street
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21
Turn left onto Dakota Avenue
1499 ft · 51 sec · Dakota Avenue
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22
Arrive at your destination
0 m · 1 sec · Dakota Avenue
Car Route Details
A richer read on the saved driving route between O'Neill and South Sioux City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Highway 20
Continue on Highway 20
30.1 mi · 00h 35m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving O'Neill and Mostly Sunny near South Sioux City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Neill to South Sioux City?
The road trip is about 124.5 miles (200.3 km) and usually takes 02h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
McLean is a useful midpoint, sitting about 61.8 miles from O'Neill and 62.6 miles from South Sioux City.
How much longer is the road route than the straight-line distance?
The direct path is about 113.8 miles (183.2 km), while the road route adds roughly 10.7 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:10 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.55 one way or $33.11 round trip. Estimated CO2 is about 39 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Neill and Mostly Sunny near South Sioux City.
Flight Path Map
This map shows the direct air route between O'Neill and South Sioux City. Straight-line distance: 113.87 mi (183.25 km).
#1 O'Neill
City in Nebraska, United States
| Population | 3,537 |
| Coordinates | 42.4577800, -98.6475900 |
| Altitude | 606 |
| Country | United States |
#2 South Sioux City
City in Dakota County, Nebraska, United States
| Population | 12,809 |
| Coordinates | 42.4738800, -96.4136400 |
| Altitude | 337 |
| Country | United States |
End: Dakota Avenue (-96.413706, 42.473915)
Estimated Travel Time
Distance: 200 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 08m |
| 40 mph (64.37 km/h) | 03h 06m |
| 50 mph (80.47 km/h) | 02h 29m |
| 60 mph (96.56 km/h) | 02h 04m |
| 70 mph (112.65 km/h) | 01h 46m |
| 80 mph (129 km/h) | 01h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $16.55 | $33.11 |
| Mid-grade | $4.25 | $18.67 | $37.34 |
| Premium | $4.65 | $20.43 | $40.86 |
| Diesel | $5.30 | $23.28 | $46.57 |
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 Nebraska · May 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.