How far is Huntsville, AL from Decatur, AL?
The driving distance from Huntsville, AL to Decatur, AL is about 25.8 miles (41.5 km), with a travel time of about 00h 28m by car.
- The straight-line flight distance is about 24.2 miles (38.9 km).
- For a round trip, plan for roughly 00h 56m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 28m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The most populous city in Madison County, Alabama.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Huntsville and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Huntsville and Decatur.
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1
Start on Spring Street Southwest
1 m · 4 sec · Spring Street Southwest
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2
Turn right onto West Side Square
115 m · 16 sec · West Side Square
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3
Continue on South Side Square
113 m · 16 sec · South Side Square
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4
Turn left onto East Side Square
113 m · 9 sec · East Side Square
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5
Continue on Washington Street Southeast
111 m · 9 sec · Washington Street Southeast
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6
Continue on Washington Street Northeast
2489 ft · 54 sec · Washington Street Northeast
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7
Take the ramp slight left
1580 ft · 41 sec
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8
Merge slight left
18.9 mi · 20 min
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9
Continue straight
624 ft · 9 sec
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10
Continue on Huntsville-Decatur Highway
3.5 mi · 4 min · Huntsville-Decatur Highway
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11
Continue on Bee Line Highway
1.6 mi · 2 min · Bee Line Highway
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12
Keep slight left to continue on 6th Avenue Northeast
1980 ft · 50 sec · 6th Avenue Northeast
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13
Turn right onto Lee Street Northeast
1040 ft · 32 sec · Lee Street Northeast
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14
Turn right
25 m · 6 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Huntsville and Decatur.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Washington Street Northeast
Merge slight left
18.9 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Huntsville and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Huntsville to Decatur?
The road trip is about 25.8 miles (41.5 km) and usually takes 00h 28m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Madison is a useful midpoint, sitting about 12.9 miles from Huntsville and 12.9 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 24.2 miles (38.9 km), while the road route adds roughly 1.6 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:34 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.45 one way or $6.89 round trip. Estimated CO2 is about 8.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Huntsville and Sunny near Decatur.
Flight Path Map
This map shows the direct air route between Huntsville and Decatur. Straight-line distance: 24.17 mi (38.89 km).
#1 Huntsville
The second most populous city in Alabama.
| Population | 202,964 |
| Coordinates | 34.7304000, -86.5859400 |
| Altitude | 193 |
| Country | United States |
#2 Decatur
The most populous city in Morgan County, Alabama.
| Population | 54,381 |
| Coordinates | 34.6059300, -86.9833400 |
| Altitude | 171 |
| Country | United States |
End: (-86.983514, 34.605804)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 51m |
| 40 mph (64.37 km/h) | 00h 38m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $3.45 | $6.89 |
| Mid-grade | $4.26 | $3.88 | $7.75 |
| Premium | $4.63 | $4.21 | $8.42 |
| Diesel | $5.42 | $4.93 | $9.86 |
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 Alabama · Apr 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.