Sioux City to Knoxville is 235.4 miles and takes about 4h 23m via I 29, I 80, and IA 5, with a fuel budget near $37 and enough daylight to finish in a day. This trip stays within Iowa, traversing the Midwest region. Expect a straightforward drive primarily on interstates, making it a convenient option if you're looking for a direct route. With a recommended one-day travel time, it's a manageable distance for most drivers.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
117.7 miles from Sioux City, IA
A natural place for your longest stop of the day
, about 2h 10m into the drive
.
Main Roads
Road
Distance
Duration
I 80
95.2 mi
1h 42m
I 29
75.6 mi
1h 21m
IA 5
25.7 mi
30m
I 880
16 mi
17m
Military Order of the Purple Heart Highway
12.9 mi
14m
I 35
3.8 mi
4m
Floyd Boulevard
0.6 mi
1m
McKimber Drive
0.5 mi
<1m
Longest stretch:
I 80
— 95.2 mi, about 1h 42m
Traffic on I-80
Hour-of-day weekday pattern from 24 FHWA count stations on your route.
Peak
4 PM
~1,583 veh/hr typical
· worst 1,923
Quietest
2 AM
~131 veh/hr
Peak-to-quiet ratio
12.1×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 94 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux City, IA and Knoxville, IA.
1
Start on this road
115 ft·13 sec·this road
2
Turn left onto 9th Street
0.2 mi·45 sec·9th Street
3
Turn right onto Court Street
0.3 mi·54 sec·Court Street
4
Turn left onto 5th Street
0.2 mi·28 sec·5th Street
Use the straight / right lanes.
5
Turn right onto Floyd Boulevard
0.6 mi·1 min·Floyd Boulevard
Use the straight / right lanes.
6
Take the ramp
0.3 mi·38 sec
Toward I 29 South
7
Merge onto I 29
76 mi·1 hr 21 min·I 29
8
Take the exit
0.8 mi·1 min
Exit 71Toward I 880 East: Des Moines
9
Continue on I 880
16 mi·17 min·I 880
10
Keep slight left at fork
0.7 mi·43 sec
Exit 16AToward I 80 East: Des MoinesUse the straight / slight right lanes.
11
Merge onto I 80
95 mi·1 hr 41 min·I 80
12
Keep slight right at fork onto I 80
0.3 mi·18 sec·I 80
Exit 123BToward I 35, I 80 East: Chicago, Minneapolis, Kansas CityUse the straight / slight right lanes.
13
Take the exit onto Ramp 72 H
0.4 mi·51 sec·Ramp 72 H
Exit 123BToward I 35 South: Kansas City
14
Merge onto I 35
3.8 mi·4 min·I 35
Use the straight / slight right lanes.
15
Take the exit
0.8 mi·1 min
Exit 68Toward IA 5: Des Moines International Airport, West Des Moines, NorwalkUse the slight right lane.
16
Continue on IA 5
13 mi·14 min·Military Order of the Purple Heart Highway
Use the straight / slight right lanes.
17
Take the exit onto IA 5
19 mi·22 min·IA 5
Toward IA 5 South: Carlisle
18
Turn left onto IA 5; IA 92
6.6 mi·7 min·IA 5; IA 92
19
Take the exit
0.7 mi·1 min
20
Continue on IA 92 Bus
0.5 mi·56 sec·McKimber Drive
21
Continue on IA 92 Bus
0.2 mi·25 sec·McKimber Street
22
Continue on IA 92 Bus
0.5 mi·58 sec·West Pleasant Street
23
Turn left onto IA 14
36 ft·0 sec·North Lincoln Street
24
Arrive at destination
IA 14
Trip Plan
Given the 4h 23m estimated drive time, you can comfortably complete this trip in a single day. Leaving Sioux City in the morning will give you plenty of daylight. You'll encounter one major stretch of 95.2 miles on I 80, so plan your stops accordingly. Consider fueling up before you leave Sioux City or in one of the larger towns along I 80 to take advantage of potentially lower prices. The relatively short distance offers flexibility, allowing for an early start or a more leisurely pace.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 117.7 miles from Sioux City, IA, or about 2h 10m into the drive.
The longest continuous stretch on this route runs about 95.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 52 miles or 58m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 117.7 miles or 2h 10m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 32m
Traffic, exits, and arrival timing usually matter more near Knoxville, IA than in the middle of the route.
Before You Leave
+
Open the route before leaving Sioux City, IA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Sioux City, IA
This is one driving day of about 235.4 miles and 4h 23m.
Your first comfortable stop window is around 52 miles from Sioux City, IA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 80 for about 95.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 16
5 decision points cluster between mile 0.5 and 194.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.5 mi into trip|~1m in|5th Street
Turn left onto 5th Street
Lane positioning matters here
Use the straight / right lanes.
6
0.7 mi into trip|~2m in|Floyd Boulevard
Turn right onto Floyd Boulevard
Lane positioning matters here
Use the straight / right lanes.
8
94 mi into trip|~1h 45m in
Keep slight left at fork toward I 80 East: Des Moines
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 16A
Toward I 80 East: Des Moines
9
189.6 mi into trip|~3h 27m in|I 80
Keep slight right at fork onto I 80 toward I 35, I 80 East: Chicago, Minneapolis, Kansas City
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 123B
Toward I 35, I 80 East: Chicago, Minneapolis, K...
8
194.1 mi into trip|~3h 33m in
Take the exit toward IA 5: Des Moines International Airport, West Des Moines, Norwalk
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 68
Toward IA 5: Des Moines International Airport,...
Fuel & Cost
Regular Gas
$39.27 one way
$78.53 round trip
$4.24/gal25.4 MPG avg82 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$42.68
$85.36
premium
$5.26
$48.74
$97.48
diesel
$6.18
$57.27
$114.53
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$39
Meals
$25–$50
Total
$64–$89
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 82.4 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $25 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
70.6
0
$24.72
$11.30
Efficient EV
58.9
0
$20.60
$9.42
EV Truck/SUV
94.2
1
$32.96
$15.07
Gas CO2
82 kg
EV CO2
28 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Oct 18, 2026
Origin
Sioux City, IA
Morning
in Sioux City on Sunday
Local time
7:36 AM
CDT
Current temp
42°F
Clear
S 10 to 15 mph0% chanceLive forecast
Destination
Knoxville, IA
Morning
in Knoxville on Sunday
Local time
7:36 AM
CDT
Current temp
40°F
Clear
S 8 mph0% chanceLive forecast
59°F
Avoca, IA
118 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 23m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route is 92% highway, meaning you'll spend most of your time on interstates. The longest continuous stretch on a major highway is 95.2 miles on I 80. You can anticipate a primarily rural cruising experience with an increasing number of exits as you approach your destination. Surface roads will become more common in the final miles.
92% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 95.2 mi on I 80.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 80 and I 29. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.5 miles in near 5th Street.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 235.4 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.5 miles (5th Street): Lane positioning matters here; at 0.7 miles (Floyd Boulevard): Lane positioning matters here; at 94 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
1,354 ft785 ft
Total Climb
588 ft
Total Descent
879 ft
Highest Point
1,354 ft
~134.5 mi in
Elevation Range
570 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Sioux City, IA and Knoxville, IA, road signs point toward Minneapolis, Kansas City, Des Moines and Norwalk.
Sioux City is on the western edge of the state of Iowa. It is on the Missouri River and many parts of Sioux City are among the unique Loess Hills formations.
Top landmarks
•Sergeant Floyd — museum boat in Sioux City, Iowa, United States
•Woodbury County Courthouse — county courthouse in Sioux City, United States of America
•St. Boniface Catholic Church — church building in Sioux City, United States of America
Doable as a same-day drive at 4h 23m. Total distance: 235.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 23m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (92%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 95.2 miles on I 80. The full list of main roads is in the Roads section above.
Yes — we found about 23 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Knoxville, IA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 23 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.5 miles (5th Street): Lane positioning matters here; at 0.7 miles (Floyd Boulevard): Lane positioning matters here; at 94 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Possible but tiring. At 4.4 hours each way, an in-and-out day trip would put you behind the wheel for 8.8 hours — manageable with a long break at Knoxville, IA, but most travelers stay overnight.
