West Memphis, AR to Fort Smith, AR is 278 miles and takes about 4 hours 48 minutes via I-40 and US 71, with a fuel budget near $44 and enough daylight to finish in a day. This trip stays within Arkansas, traversing the Southeast region on its way to the western part of the state. Most of the driving is on major highways, making for a straightforward and efficient transit. It's a solid choice if you need to cover ground quickly and simply, with minimal fuss.
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
139.2 miles from West Memphis, AR
A natural place for your longest stop of the day
, about 2h 24m into the drive
.
Main Roads
Road
Distance
Duration
I 40
263 mi
4h 25m
US 71
6.5 mi
7m
East Broadway Boulevard
6.1 mi
9m
Grand Avenue
1.9 mi
3m
AR 147
0.1 mi
<1m
Longest stretch:
I 40
— 263 mi, about 4h 25m
Turn-by-Turn Driving Directions
Step-by-step road directions between West Memphis, AR and Fort Smith, AR.
1
Start on this road
21 ft·6 sec·this road
2
Turn left onto US 70
6.1 mi·9 min·East Broadway Boulevard
3
Turn right onto AR 147
0.1 mi·17 sec·AR 147
4
Take the ramp
0.4 mi·48 sec
5
Merge onto I 40
263 mi·4 hr 25 min·I 40
Use the straight / right lanes.
6
Take the exit onto US 71
6.5 mi·7 min·US 71
Toward I 540 South, US 71 South: Fort Smith
7
Take the exit
0.2 mi·33 sec
Exit 6Toward Grand Avenue
8
Turn right onto Grand Avenue
1.9 mi·3 min·Grand Avenue
9
Arrive at destination
Grand Avenue
Trip Plan
Given the 4 hour 48 minute drive time, you can comfortably complete this trip in a single day. Leaving in the morning will give you ample daylight and allow for a relaxed pace. The longest stretch without a major road change is 263 miles on I-40, so plan a fuel stop or a short break before you get too far into that segment. With only one recommended stop and a straightforward route, you have flexibility to adjust your schedule as needed.
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 139.2 miles from West Memphis, AR, or about 2h 24m into the drive.
The longest continuous stretch on this route runs about 263 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 61 miles or 1h 5m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 139.2 miles or 2h 24m 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 54m
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 West Memphis, 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 West Memphis, AR
This is one driving day of about 278.3 miles and 4h 48m.
Your first comfortable stop window is around 61 miles from West Memphis, 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 263 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 and 276.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|US 70 / East Broadway Boulevard
Turn left onto US 70 / East Broadway Boulevard
Navigation decision point
4
6.1 mi into trip|~9m in|AR 147
Turn right onto AR 147
Navigation decision point
5
6.7 mi into trip|~10m in|I 40
Merge onto I 40
Merge point - match speed before joining. Lane positioning matters here
Use the straight / right lanes.
5
269.6 mi into trip|~4h 36m 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
276.2 mi into trip|~4h 44m in
Take the exit toward Grand Avenue
Exit ramp - move to the correct lane early
Exit 6
Toward Grand Avenue
Fuel & Cost
Regular Gas
$38.63 one way
$77.27 round trip
$3.53/gal25.4 MPG avg97 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.95
$43.22
$86.45
premium
$4.29
$46.99
$93.99
diesel
$4.80
$52.55
$105.10
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$39
Meals
$25–$50
Total
$64–$89
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 97.4 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $29 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
83.5
1
$29.22
$13.36
Efficient EV
69.6
0
$24.35
$11.13
EV Truck/SUV
111.3
1
$38.96
$17.81
Gas CO2
97 kg
EV CO2
33 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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
West Memphis, AR
Late night
in West Memphis on Sunday
Local time
3:15 AM
CDT
Current temp
75°F
Mostly Clear
SW 0 to 5 mph5% chanceLive forecast
Destination
Fort Smith, AR
Late night
in Fort Smith on Sunday
Local time
3:15 AM
CDT
Current temp
75°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
S 0 to 5 mph22% chanceLive forecast
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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
4h 48m 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?
You'll spend about 97% of your time on highways, covering a significant 263 miles on I-40 before transitioning to surface roads. The majority of the trip involves cruising on interstates, so expect a steady pace with frequent exits in populated areas. The final stretch, likely on US 71 and East Broadway Boulevard, will feel more like navigating a typical town or city.
97% highway — fuel and pacing are the main things to plan.
9 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 263 mi on I 40.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on I 40 and US 71. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near US 70 / East Broadway Boulevard.
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 48m 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: near the start (US 70 / East Broadway Boulevard): Navigation decision point; at 6.1 miles (AR 147): Navigation decision point; at 6.7 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 263 miles on I 40. The full list of main roads is in the Roads section above.
Yes — we found about 30 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: near the start (US 70 / East Broadway Boulevard): Navigation decision point; at 6.1 miles (AR 147): Navigation decision point; at 6.7 miles (I 40): Merge point - match speed before joining. Lane positioning matters here.
Possible but tiring. At 4.8 hours each way, an in-and-out day trip would put you behind the wheel for 9.6 hours — manageable with a long break at Fort Smith, AR, but most travelers stay overnight.
