How far is South Sioux City, NE from O'Neill, NE?
The driving distance from South Sioux City, NE to O'Neill, NE is about 123.5 miles (198.8 km), with a travel time of about 02h 31m by car.
- The straight-line flight distance is about 113.8 miles (183.2 km).
- For a round trip, plan for roughly 05h 03m 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 31m.
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 South Sioux City and O'Neill.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Sioux City and O'Neill.
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1
Start on Dakota Avenue
1499 ft · 55 sec · Dakota Avenue
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2
Turn right onto West 21st Street
1 km · 1 min · West 21st Street
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3
Turn left onto Highway 77
1.3 mi · 2 min · Highway 77
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4
Take the exit slight right toward US 20 West
2387 ft · 41 sec
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5
Merge slight left
36.7 mi · 43 min
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6
Continue on Willow Street
1615 ft · 34 sec · Willow Street
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7
Continue on Highway 20
5.6 mi · 7 min · Highway 20
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8
Continue on 1st Street
2087 ft · 35 sec · 1st Street
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9
Continue on Highway 20
20.3 mi · 24 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
8.8 mi · 10 min · Highway 20
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12
Continue on East Park Avenue
1.3 mi · 3 min · East Park Avenue
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13
Continue on Highway 20
16.5 mi · 19 min · Highway 20
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14
Continue on 1st Street
1807 ft · 28 sec · 1st Street
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15
Continue on Highway 20
5.3 mi · 6 min · Highway 20
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16
Continue on 2nd Street
1.5 km · 2 min · 2nd Street
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17
Continue on Highway 20
23 mi · 27 min · Highway 20
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18
Continue on East Douglas Street
3191 ft · 1 min · East Douglas Street
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19
Arrive at your destination
0 m · 1 sec · East Douglas Street
Car Route Details
A richer read on the saved driving route between South Sioux City and O'Neill.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 20 West
Merge slight left
36.7 mi · 00h 43m
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 South Sioux City and Mostly Sunny near O'Neill.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Sioux City to O'Neill?
The road trip is about 123.5 miles (198.8 km) and usually takes 02h 31m 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 61.6 miles from South Sioux City and 61.9 miles from O'Neill.
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 9.7 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 1:26 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.44 one way or $32.88 round trip. Estimated CO2 is about 38.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around South Sioux City and Mostly Sunny near O'Neill.
Flight Path Map
This map shows the direct air route between South Sioux City and O'Neill. Straight-line distance: 113.87 mi (183.25 km).
#1 South Sioux City
City in Dakota County, Nebraska, United States
| Population | 12,809 |
| Coordinates | 42.4738800, -96.4136400 |
| Altitude | 337 |
| Country | United States |
#2 O'Neill
City in Nebraska, United States
| Population | 3,537 |
| Coordinates | 42.4577800, -98.6475900 |
| Altitude | 606 |
| Country | United States |
End: O'Neill (-98.64759, 42.45778)
Estimated Travel Time
Distance: 199 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 07m |
| 40 mph (64.37 km/h) | 03h 05m |
| 50 mph (80.47 km/h) | 02h 28m |
| 60 mph (96.56 km/h) | 02h 03m |
| 70 mph (112.65 km/h) | 01h 45m |
| 80 mph (129 km/h) | 01h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $16.44 | $32.88 |
| Mid-grade | $4.25 | $18.54 | $37.09 |
| Premium | $4.65 | $20.29 | $40.58 |
| Diesel | $5.30 | $23.13 | $46.25 |
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.