How far is Marion, IA from Sioux City, IA?
The driving distance from Marion, IA to Sioux City, IA is about 263.8 miles (424.5 km), with a travel time of about 04h 10m by car.
- The straight-line flight distance is about 247.6 miles (398.5 km).
- For a round trip, plan for roughly 08h 20m 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 10m.
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 Sunny
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Marion and Sioux City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marion and Sioux City.
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1
Start on 8th Avenue
136 m · 23 sec · 8th Avenue
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2
Turn left onto 10th Street
98 m · 13 sec · 10th Street
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3
Turn right onto 7th Avenue
880 ft · 22 sec · 7th Avenue
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4
Enter the roundabout and take exit 2 toward the route
31 m · 4 sec
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5
Exit the roundabout
40 m · 6 sec
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6
Continue on 7th Avenue
1828 ft · 48 sec · 7th Avenue
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7
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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8
Continue on 1st Avenue East
621 ft · 19 sec · 1st Avenue East
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9
Turn right onto Collins Road Northeast
2.2 mi · 3 min · Collins Road Northeast
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10
Take the exit slight right toward I-380, IA 27: Iowa City, Waterloo
2548 ft · 1 min
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11
Keep slight right to continue on I-380 north, IA 27 north: Waterloo
2156 ft · 42 sec
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12
Keep slight left
87 m · 7 sec
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13
Continue on I-380 south, IA 27 south: Waterloo
1093 ft · 27 sec
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14
Merge slight left onto Avenue of the Saints
46.6 mi · 51 min · Avenue of the Saints
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15
Keep slight left to continue on Avenue of the Saints
160.2 mi · 3 hr 5 min · Avenue of the Saints
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16
Continue on 160th Street
6.4 mi · 7 min · 160th Street
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17
Continue on United States Highway 20
1.9 mi · 3 min · United States Highway 20
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18
Continue on Highway 20
42.9 mi · 53 min · Highway 20
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19
Turn right onto South Fairmount Street
3033 ft · 1 min · South Fairmount Street
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20
Continue on 6th Street
1.5 km · 2 min · 6th Street
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21
Turn right onto Court Street
1199 ft · 39 sec · Court Street
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22
Turn left onto 9th Street
990 ft · 46 sec · 9th Street
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23
Turn right
35 m · 9 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Marion and Sioux City.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Avenue of the Saints
Keep slight left to continue on Avenue of the Saints
160 mi · 03h 05m
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 Sunny leaving Marion and 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 Marion to Sioux City?
The road trip is about 263.8 miles (424.5 km) and usually takes 04h 10m 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 132.1 miles from Marion and 131.7 miles from Sioux City.
How much longer is the road route than the straight-line distance?
The direct path is about 247.6 miles (398.5 km), while the road route adds roughly 16.2 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 8:40 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.11 one way or $70.22 round trip. Estimated CO2 is about 82.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Marion and Slight Chance Showers And Thunderstorms near Sioux City.
Flight Path Map
This map shows the direct air route between Marion and Sioux City. Straight-line distance: 247.62 mi (398.51 km).
#1 Marion
The county seat of Linn County, Iowa.
| Population | 40,780 |
| Coordinates | 42.0341700, -91.5976800 |
| Altitude | 259 |
| 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: 424 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 47m |
| 40 mph (64.37 km/h) | 06h 35m |
| 50 mph (80.47 km/h) | 05h 16m |
| 60 mph (96.56 km/h) | 04h 23m |
| 70 mph (112.65 km/h) | 03h 46m |
| 80 mph (129 km/h) | 03h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $35.11 | $70.22 |
| Mid-grade | $4.25 | $39.60 | $79.19 |
| Premium | $4.65 | $43.33 | $86.66 |
| Diesel | $5.30 | $49.38 | $98.76 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.