How far is Decatur, AL from Mount Vernon, AL?
The driving distance from Decatur, AL to Mount Vernon, AL is about 284.8 miles (458.3 km), with a travel time of about 05h 59m by car.
- The straight-line flight distance is about 250.5 miles (403.1 km).
- For a round trip, plan for roughly 11h 59m 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 05h 59m.
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 Bibb County, Alabama, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Decatur and Mount Vernon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Mount Vernon.
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1
Start on the route
130 m · 37 sec
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2
At the end of the road, turn left onto Ferry Street Northeast
50 m · 9 sec · Ferry Street Northeast
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3
Turn left onto Lee Street Northeast
1583 ft · 53 sec · Lee Street Northeast
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4
At the end of the road, turn right onto 6th Avenue Northeast
580 ft · 15 sec · 6th Avenue Northeast
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5
Continue on 6th Avenue Southeast
3 mi · 6 min · 6th Avenue Southeast
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6
Turn left onto Point Mallard Parkway
4.2 mi · 6 min · Point Mallard Parkway
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7
Take the ramp slight right toward I-65 South: Birmingham
1944 ft · 47 sec
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8
Merge slight left
67.1 mi · 1 hr 12 min
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9
Take the exit slight right toward I 22 West, US 31: Memphis, Fultondale
2715 ft · 38 sec
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10
Keep slight left to continue on I 22 West: Memphis
2666 ft · 38 sec
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11
Keep slight left to continue on Montgomery
1940 ft · 28 sec
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12
Merge slight left
3.7 mi · 5 min
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13
Take the exit slight right toward I 20 West, I 59 South: Tuscaloosa
2224 ft · 54 sec
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14
Merge slight left
26.9 mi · 30 min
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15
Take the exit slight right toward US 11 South, AL 5 South: West Blocton, Centreville
1746 ft · 35 sec
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16
Turn left
3.2 mi · 5 min
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17
Turn left onto State Route 5
18.9 mi · 26 min · State Route 5
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18
Enter the roundabout and take exit 3 toward State Route 5
69 m · 8 sec · State Route 5
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19
Exit the roundabout onto State Route 5
49.8 mi · 1 hr 11 min · State Route 5
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20
Continue on Jefferson Davis Highway
4.3 mi · 6 min · Jefferson Davis Highway
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21
Continue on State Route 5
21.2 mi · 31 min · State Route 5
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22
Continue on Broad Street
3.8 mi · 6 min · Broad Street
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23
Continue on State Route 5
7.5 mi · 11 min · State Route 5
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24
Continue straight
67.9 mi · 1 hr 18 min
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25
Turn left onto Military Road
1583 ft · 43 sec · Military Road
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26
Arrive at your destination
0 m · 1 sec · Military Road
Car Route Details
A richer read on the saved driving route between Decatur and Mount Vernon.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
State Route 5
Continue straight
67.9 mi · 01h 18m
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.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms leaving Decatur and Chance Showers And Thunderstorms near Mount Vernon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Mount Vernon?
The road trip is about 284.8 miles (458.3 km) and usually takes 05h 59m 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?
Brent is a useful midpoint, sitting about 142.6 miles from Decatur and 142.2 miles from Mount Vernon.
How much longer is the road route than the straight-line distance?
The direct path is about 250.5 miles (403.1 km), while the road route adds roughly 34.3 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 5:00 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.06 one way or $76.12 round trip. Estimated CO2 is about 89.3 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms around Decatur and Chance Showers And Thunderstorms near Mount Vernon.
Stop Ideas Near Brent
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Brent.
Brent, AL
Marion, AL
Tuscaloosa
Selma, AL
Flight Path Map
This map shows the direct air route between Decatur and Mount Vernon. Straight-line distance: 250.49 mi (403.13 km).
#1 Decatur
The most populous city in Morgan County, Alabama.
| Population | 54,381 |
| Coordinates | 34.6059300, -86.9833400 |
| Altitude | 171 |
| Country | United States |
#2 Mount Vernon
Town in Mobile County, Alabama
| Population | 1,518 |
| Coordinates | 31.0851800, -88.0133300 |
| Altitude | 11 |
| Country | United States |
End: Mount Vernon (-88.01333, 31.08518)
Estimated Travel Time
Distance: 458 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 29m |
| 40 mph (64.37 km/h) | 07h 07m |
| 50 mph (80.47 km/h) | 05h 41m |
| 60 mph (96.56 km/h) | 04h 44m |
| 70 mph (112.65 km/h) | 04h 04m |
| 80 mph (129 km/h) | 03h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $38.06 | $76.12 |
| Mid-grade | $4.26 | $42.80 | $85.61 |
| Premium | $4.63 | $46.48 | $92.96 |
| Diesel | $5.42 | $54.42 | $108.84 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.