Marianna, AR to Fort Smith, AR is 248.7 miles and takes about 4h 32m via I 40 and US 79, with a fuel budget near $38 and enough daylight to finish in a day. This drive stays within Arkansas, moving from the Southeast region to the Southeast region. It's a straightforward highway-focused trip, ideal for a single-day journey without needing an overnight stop. Plan for a day where you'll be doing most of your driving on major roadways, making it a functional transit rather than a meandering scenic tour.
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
124.4 miles from Marianna, AR
A natural place for your longest stop of the day
, about 2h 23m into the drive
.
Main Roads
Road
Distance
Duration
I 40
212.9 mi
3h 35m
State Highway 78
14.9 mi
26m
US 79
8.9 mi
13m
US 71
6.5 mi
7m
East Chestnut Street
2.9 mi
4m
Grand Avenue
1.9 mi
3m
North Poplar Street
<0.1 mi
<1m
Longest stretch:
I 40
— 212.9 mi, about 3h 35m
Turn-by-Turn Driving Directions
Step-by-step road directions between Marianna, AR and Fort Smith, AR.
1
Start on North Poplar Street
295 ft·13 sec·North Poplar Street
2
Turn left onto East Chestnut Street
2.9 mi·4 min·East Chestnut Street
3
Continue on US 79
8.9 mi·13 min·US 79
4
Turn right onto AR 78
4.9 mi·8 min·State Highway 78
5
Continue on AR 78
10 mi·17 min·State Highway 78
6
Take the ramp
0.3 mi·35 sec
7
Merge onto I 40
213 mi·3 hr 35 min·I 40
Use the straight / right lanes.
8
Take the exit onto US 71
6.5 mi·7 min·US 71
Toward I 540 South, US 71 South: Fort Smith
9
Take the exit
0.2 mi·33 sec
Exit 6Toward Grand Avenue
10
Turn right onto Grand Avenue
1.9 mi·3 min·Grand Avenue
11
Arrive at destination
Grand Avenue
Trip Plan
Given the 4-hour 32-minute estimated drive time and 248.7-mile distance, starting in the morning should comfortably get you to Fort Smith before evening. With only one recommended stop, you can choose to make it a brief refueling break or a quick meal. The longest stretch is over 200 miles on I 40, so ensure you're fueled up before embarking on that segment. This is a single-day trip, allowing for flexibility in your departure time and 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 124.4 miles from Marianna, AR, or about 2h 23m into the drive.
The longest continuous stretch on this route runs about 212.9 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 55 miles or 1h 13m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 124.4 miles or 2h 23m 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 44m
Traffic, exits, and arrival timing usually matter more near Fort Smith, AR than in the middle of the route.
Before You Leave
+
Open the route before leaving Marianna, AR 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 Marianna, AR
This is one driving day of about 248.7 miles and 4h 32m.
Your first comfortable stop window is around 55 miles from Marianna, AR.
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 40 for about 212.9 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 7
5 decision points cluster between mile 0.1 and 246.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
3
0.1 mi into trip|~0m in|East Chestnut Street
Turn left onto East Chestnut Street
Navigation decision point
4
26.8 mi into trip|~44m in
Take the ramp
Navigation decision point
5
27.1 mi into trip|~45m in|I 40
Merge onto I 40
Merge point - match speed before joining. Lane positioning matters here
Use the straight / right lanes.
5
240.1 mi into trip|~4h 20m in|US 71
Take the exit onto US 71 toward I 540 South, US 71 South: Fort Smith
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 540 South, US 71 South: Fort Smith
5
246.6 mi into trip|~4h 28m in
Take the exit toward Grand Avenue
Exit ramp - move to the correct lane early
Exit 6
Toward Grand Avenue
Fuel & Cost
Regular Gas
$34.52 one way
$69.05 round trip
$3.53/gal25.4 MPG avg87 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.95
$38.63
$77.25
premium
$4.29
$42.00
$83.99
diesel
$4.80
$46.96
$93.92
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 87 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $26 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
74.6
0
$26.11
$11.94
Efficient EV
62.2
0
$21.76
$9.95
EV Truck/SUV
99.5
1
$34.82
$15.92
Gas CO2
87 kg
EV CO2
29 kg (67% 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 Jul 18, 2026
Origin
Marianna, AR
Late night
in Marianna on Sunday
Local time
3:21 AM
CDT
Current temp
94°F
Sunny
W 0 to 5 mph2% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 4:25AM CDT until July 18 at 8:00PM CDT by NWS Memphis TN
Heat Advisory
Heat Advisory issued July 18 at 1:07AM CDT until July 18 at 8:00PM CDT by NWS Little Rock AR
Destination
Fort Smith, AR
Late night
in Fort Smith on Sunday
Local time
3:21 AM
CDT
Current temp
95°F
Sunny
S 0 to 5 mph17% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 4:25AM CDT until July 18 at 8:00PM CDT by NWS Memphis TN
Heat Advisory
Heat Advisory issued July 18 at 1:07AM CDT until July 18 at 8:00PM CDT by NWS Little Rock AR
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
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 32m 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 overwhelmingly a highway-focused drive, with 98% of the journey utilizing major roadways like I 40 and US 79. You'll experience long, uninterrupted stretches, including a significant 212.9 miles on I 40. Expect a consistent pace for the majority of the trip, as the emphasis is on efficient travel rather than varied terrain. The road character remains largely consistent, prioritizing speed and directness over local flavor.
98% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 212.9 mi on I 40.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on I 40 and State Highway 78. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near East Chestnut Street.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 4h 32m drive. You will face about 7 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (East Chestnut Street): Navigation decision point; at 26.8 miles: Navigation decision point; at 27.1 miles (I 40): Merge point - match speed before joining. Lane positioning matters here.
Fort Smith is in northwest Arkansas and borders Oklahoma. It is the county seat of Sebastian County. The city has a population of 80,286 which makes it the third largest city in Arkansas behind Little Rock and Fayetteville. It is located in the River Valley of Arkansas between the Ouachita mountains in the south and the Boston and Ozark mountains of the north and a gateway city to the Ozarks.
Top landmarks
•Fort Smith National Cemetery — historic veterans cemetery in Sebastian County, Arkansas
•Maumelle Ordnance Works Locomotive 1
•West Garrison Avenue Historic District — historic district in Fort Smith, Arkansas
The longest stretch is about 212.9 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 24 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.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: at 0.1 miles (East Chestnut Street): Navigation decision point; at 26.8 miles: Navigation decision point; at 27.1 miles (I 40): Merge point - match speed before joining. Lane positioning matters here.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.1 hours — manageable with a long break at Fort Smith, AR, but most travelers stay overnight.
