How far is Dubuque, IA from Sergeant Bluff, IA?

The driving distance from Dubuque, IA to Sergeant Bluff, IA is about 303 miles (487.6 km), with a travel time of about 06h 00m by car.

  • The straight-line flight distance is about 290.3 miles (467.2 km).
  • For a round trip, plan for roughly 12h 00m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
302.97 mi
06h 00m
Flight
290.3 mi
467.2 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Dubuque.

Flight Distance

Direct air line
290.3 mi
Kilometers
467.2 km
Flight Time
00h 35m

Driving Distance

Road route
302.97 mi
Kilometers
487.58 km
Drive Time
06h 00m

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 06h 00m.

Arrival Snapshot
Arrive in Sergeant Bluff
Thu, Apr 30, 1:24 AM CDT
Return by in Dubuque
Thu, Apr 30, 7:25 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Dubuque
2026-04-29T19:24
Arrive Sergeant Bluff
Thu, Apr 30, 1:24 AM CDT
Route Timing
06h 00m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
12:00 PM to 2:00 PM CDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
5:00 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Dubuque
9:00 PM CDT
Early departure recommended

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.

Mid-route stop
Williams
IA

City in Hamilton County, Iowa, United States

From Dubuque
151.1 mi
03h 00m
To Sergeant Bluff
151.9 mi
03h 00m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
43°F
Overnight

Chance Rain Showers

Starts
Wed, Apr 29 12:00 AM CDT
Wind
5 mph NW
Destination
37°F
Overnight

Partly Cloudy

Starts
Wed, Apr 29 3:00 AM CDT
Wind
5 mph NW

Driving Route Map

The map below follows the saved road route between Dubuque and Sergeant Bluff.

Turn-by-Turn Driving Directions

Step-by-step road directions between Dubuque and Sergeant Bluff.

  1. 1

    Start on Central Avenue

    929 ft · 34 sec · Central Avenue

  2. 2

    Take the ramp straight toward US 61 South, US 151 South

    1248 ft · 32 sec

  3. 3

    Turn right onto Locust Street Conn

    1166 ft · 36 sec · Locust Street Conn

  4. 4

    Turn right onto Dodge Street

    87 mi · 1 hr 43 min · Dodge Street

  5. 5

    Keep slight left to continue on Avenue of the Saints

    160.2 mi · 3 hr 5 min · Avenue of the Saints

  6. 6

    Continue on 160th Street

    6.4 mi · 7 min · 160th Street

  7. 7

    Continue on United States Highway 20

    1.9 mi · 3 min · United States Highway 20

  8. 8

    Continue on Highway 20

    34.3 mi · 41 min · Highway 20

  9. 9

    Turn left onto Delaware Avenue

    4.3 mi · 6 min · Delaware Avenue

  10. 10

    Continue on Maple Street

    1615 ft · 50 sec · Maple Street

  11. 11

    Continue on Front Street

    1112 ft · 30 sec · Front Street

  12. 12

    Continue on Bronson Blacktop

    1.1 mi · 2 min · Bronson Blacktop

  13. 13

    Turn right onto Old Highway 141

    2649 ft · 48 sec · Old Highway 141

  14. 14

    Turn left onto 210th Street

    4.9 mi · 7 min · 210th Street

  15. 15

    Continue on 1st Street

    1.1 km · 2 min · 1st Street

  16. 16

    Turn right onto South Lewis Boulevard

    1429 ft · 40 sec · South Lewis Boulevard

  17. 17

    Turn left onto 4th Street

    119 m · 17 sec · 4th Street

  18. 18

    Arrive at your destination

    0 m · 1 sec · 4th Street

Car Route Details

A richer read on the saved driving route between Dubuque and Sergeant Bluff.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
18 steps
7 turns on the saved route
Ramps & Exits
1
0 merges, 1 ramps or exits
Navigation Density
5.9 / 100 mi
Decision points by distance
Main Roads
Avenue of the Saints
160 mi · 53%
Dodge Street
87 mi · 29%
Highway 20
34.3 mi · 11%
160th Street
6.44 mi · 2%
210th Street
4.94 mi · 2%
Delaware Avenue
4.32 mi · 1%
Longest Stretch

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.

Trip Read

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.

Drive Time
06h 00m
Long day trip
Same-Day Return
12h 00m
Round-trip wheel time
Road vs Air
+12.7 mi
290.3 mi direct line
Halfway Stop
Williams
03h 00m from Dubuque
Leave By
5:00 AM CDT
Early departure recommended
Weather Watch

Chance Rain Showers leaving Dubuque and Partly Cloudy near Sergeant Bluff.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Dubuque to Sergeant Bluff?

The road trip is about 303 miles (487.6 km) and usually takes 06h 00m 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?

Williams is a useful midpoint, sitting about 151.1 miles from Dubuque and 151.9 miles from Sergeant Bluff.

How much longer is the road route than the straight-line distance?

The direct path is about 290.3 miles (467.2 km), while the road route adds roughly 12.7 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:00 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $40.31 one way or $80.62 round trip. Estimated CO2 is about 95 kg one way.

What should you check before leaving?

Before you leave, expect Chance Rain Showers around Dubuque and Partly Cloudy near Sergeant Bluff.

Flight Path Map

This map shows the direct air route between Dubuque and Sergeant Bluff. Straight-line distance: 290.3 mi (467.2 km).

Dubuque

#1 Dubuque

The most populous city in Dubuque County, Iowa.

Population57,781
Coordinates42.5005600, -90.6645700
Altitude189
CountryUnited States
Sergeant Bluff

#2 Sergeant Bluff

City in Woodbury County, Iowa, United States of America

Population5,119
Coordinates42.4038800, -96.3586400
Altitude334
CountryUnited States
Start: Dubuque (-90.66457, 42.50056)
End: Sergeant Bluff (-96.35864, 42.40388)

Estimated Travel Time

Distance: 488 km by road

SpeedTime
30 mph (48.3 km/h)10h 05m
40 mph (64.37 km/h)07h 34m
50 mph (80.47 km/h)06h 03m
60 mph (96.56 km/h)05h 02m
70 mph (112.65 km/h)04h 19m
80 mph (129 km/h)03h 46m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
10.69 gal
40.47 L · about $40.31
Round trip
$80.62
21.38 gal · 80.94 L
Estimated CO2
95 kg one way
Round trip: 190 kg / 419 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $40.31 $80.62
Mid-grade $4.25 $45.46 $90.93
Premium $4.65 $49.75 $99.50
Diesel $5.30 $56.70 $113.40

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 30, 2026

There is no time difference between Dubuque and Sergeant Bluff. The current time is 19:24:33.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.