How far is Dermott, AR from Fort Smith, AR?
The driving distance from Dermott, AR to Fort Smith, AR is about 271.1 miles (436.3 km), with a travel time of about 04h 14m by car.
- The straight-line flight distance is about 212.1 miles (341.4 km).
- For a round trip, plan for roughly 08h 29m 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 14m.
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 Faulkner County, Arkansas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Dermott and Fort Smith.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dermott and Fort Smith.
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1
Start on South Main Street
49 m · 10 sec · South Main Street
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2
Turn left onto East Speedway Street
1.8 mi · 3 min · East Speedway Street
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3
Turn left
2 mi · 3 min
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4
At the end of the road, turn left
59.5 mi · 1 hr 13 min
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5
Continue straight
2.2 mi · 3 min
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6
Continue on Wiley A Branton Sr Highway
46.7 mi · 49 min · Wiley A Branton Sr Highway
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7
Continue straight
4.2 mi · 5 min
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8
Keep slight left to continue on I 40 West, US 65 North, AR 107 North: Conway, Fort Smith
1461 ft · 36 sec
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9
Keep slight left
145.4 mi · 2 hr 27 min
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10
Take the exit slight right toward I 540 South, US 71 South: Fort Smith
6.5 mi · 8 min
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11
Take the exit slight right toward Grand Avenue
1259 ft · 34 sec
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12
Turn right onto Grand Avenue
1.9 mi · 4 min · Grand Avenue
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13
Arrive at your destination
0 m · 1 sec · Grand Avenue
Car Route Details
A richer read on the saved driving route between Dermott and Fort Smith.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 40 West
Keep slight left
145 mi · 02h 27m
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 Rain Showers then Mostly Sunny leaving Dermott and Sunny near Fort Smith.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dermott to Fort Smith?
The road trip is about 271.1 miles (436.3 km) and usually takes 04h 14m 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?
Mayflower is a useful midpoint, sitting about 135.4 miles from Dermott and 135.7 miles from Fort Smith.
How much longer is the road route than the straight-line distance?
The direct path is about 212.1 miles (341.4 km), while the road route adds roughly 59 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 8:30 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.24 one way or $72.48 round trip. Estimated CO2 is about 85 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Mostly Sunny around Dermott and Sunny near Fort Smith.
Stop Ideas Near Mayflower
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 Mayflower.
Little Rock Union Station
Malvern station
Arkadelphia station
Flight Path Map
This map shows the direct air route between Dermott and Fort Smith. Straight-line distance: 212.14 mi (341.41 km).
#1 Dermott
City in Arkansas, USA
| Population | 2,422 |
| Coordinates | 33.5253900, -91.4359500 |
| Altitude | 43 |
| Country | United States |
#2 Fort Smith
The second most populous city in Sebastian County, Arkansas.
| Population | 87,764 |
| Coordinates | 35.3859200, -94.3985500 |
| Altitude | 134 |
| Country | United States |
End: Grand Avenue (-94.39855, 35.385923)
Estimated Travel Time
Distance: 436 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 02m |
| 40 mph (64.37 km/h) | 06h 46m |
| 50 mph (80.47 km/h) | 05h 25m |
| 60 mph (96.56 km/h) | 04h 31m |
| 70 mph (112.65 km/h) | 03h 52m |
| 80 mph (129 km/h) | 03h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $36.24 | $72.48 |
| Mid-grade | $4.26 | $40.76 | $81.52 |
| Premium | $4.63 | $44.26 | $88.52 |
| Diesel | $5.42 | $51.82 | $103.64 |
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 Arkansas · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.