How far is Fairfax, IA from Sioux City, IA?
The driving distance from Fairfax, IA to Sioux City, IA is about 273 miles (439.3 km), with a travel time of about 04h 20m by car.
- The straight-line flight distance is about 239.7 miles (385.8 km).
- For a round trip, plan for roughly 08h 40m 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 20m.
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.
Chance Showers And Thunderstorms
Slight Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Fairfax and Sioux City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fairfax and Sioux City.
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1
Start on Vanderbilt Street
135 m · 22 sec · Vanderbilt Street
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2
Turn right onto Church Street
765 ft · 36 sec · Church Street
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3
Turn right onto Williams Boulevard
2.7 mi · 4 min · Williams Boulevard
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4
Enter the roundabout and take exit 2 toward Williams Boulevard
26 m · 2 sec · Williams Boulevard
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5
Exit the roundabout onto Williams Boulevard
1594 ft · 25 sec · Williams Boulevard
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6
Continue on Williams Blvd
1 mi · 1 min · Williams Blvd
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7
Continue on Williams Boulevard Southwest
2 mi · 4 min · Williams Boulevard Southwest
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8
Continue on 1st Avenue West
1.2 mi · 3 min · 1st Avenue West
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9
Turn left onto 3rd Street Southwest
17 m · 2 sec · 3rd Street Southwest
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10
Take the ramp slight right toward I 380 North, IA 27 North
1397 ft · 34 sec
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11
Merge slight left onto Avenue of the Saints
51.1 mi · 57 min · Avenue of the Saints
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12
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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13
Continue on 160th Street
6.4 mi · 7 min · 160th Street
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14
Continue on United States Highway 20
1.9 mi · 3 min · United States Highway 20
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15
Continue on Highway 20
42.9 mi · 53 min · Highway 20
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16
Turn right onto South Fairmount Street
3033 ft · 1 min · South Fairmount Street
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17
Continue on 6th Street
1.5 km · 2 min · 6th Street
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18
Turn right onto Court Street
1199 ft · 39 sec · Court Street
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19
Turn left onto 9th Street
990 ft · 46 sec · 9th Street
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20
Turn right
35 m · 9 sec
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21
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Fairfax 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.
Chance Showers And Thunderstorms leaving Fairfax and Slight Chance Snow Showers near Sioux City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fairfax to Sioux City?
The road trip is about 273 miles (439.3 km) and usually takes 04h 20m 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 135.8 miles from Fairfax and 137.2 miles from Sioux City.
How much longer is the road route than the straight-line distance?
The direct path is about 239.7 miles (385.8 km), while the road route adds roughly 33.3 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 8:20 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.31 one way or $72.63 round trip. Estimated CO2 is about 85.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Fairfax and Slight Chance Snow Showers near Sioux City.
Flight Path Map
This map shows the direct air route between Fairfax and Sioux City. Straight-line distance: 239.75 mi (385.84 km).
#1 Fairfax
City in Iowa, United States
| Population | 2,934 |
| Coordinates | 41.9194500, -91.7810100 |
| Altitude | 236 |
| 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: 439 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 05m |
| 40 mph (64.37 km/h) | 06h 49m |
| 50 mph (80.47 km/h) | 05h 27m |
| 60 mph (96.56 km/h) | 04h 32m |
| 70 mph (112.65 km/h) | 03h 53m |
| 80 mph (129 km/h) | 03h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $36.31 | $72.63 |
| Mid-grade | $4.25 | $40.96 | $81.91 |
| Premium | $4.65 | $44.82 | $89.64 |
| Diesel | $5.30 | $51.08 | $102.16 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.