Green River, WY to Sheridan, WY is 386.4 miles and takes about 6h 42m via Dwight D. Eisenhower Highway and I 25, with a fuel budget near $61 and enough daylight to finish in a day. This drive stays within Wyoming, moving from the Mountain West region to another part of the Mountain West. Expect a mixed drive profile, making it a solid option for a single-day journey. The route is primarily highway, offering a straightforward path across the state. Consider this trip if you're looking for an efficient way to cover ground in Wyoming.
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
193.2 miles from Green River, WY
A natural place for your longest stop of the day
, about 3h 24m into the drive
.
Main Roads
Road
Distance
Duration
Dwight D. Eisenhower Highway
119.3 mi
1h 55m
I 25
110.7 mi
1h 44m
WY 220
63.7 mi
1h 12m
3rd Street
44.1 mi
50m
US 87
31.5 mi
33m
Casper West Belt
7.3 mi
8m
US 20
3 mi
3m
Coffeen Avenue
1.8 mi
2m
Longest stretch:
Dwight D. Eisenhower Highway
— 119.3 mi, about 1h 55m
Traffic on I-80
Hour-of-day weekday pattern from 12 FHWA count stations on your route.
Peak
4 PM
~664 veh/hr typical
· worst 902
Quietest
2 AM
~94 veh/hr
Peak-to-quiet ratio
7.1×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Green River, WY and Sheridan, WY.
1
Start on North 1st East
35 ft·6 sec·North 1st East
2
Turn left onto I 80 Bus; US 30 Bus
1.1 mi·2 min·East Flaming Gorge Way
3
Take the ramp onto I 80 Bus; US 30 Bus
0.7 mi·1 min·I 80 Bus; US 30 Bus
Toward I 80 East, US 30 East: Rock Springs
4
Merge onto I 80; US 30
119 mi·1 hr 55 min·Dwight D. Eisenhower Highway
5
Take the exit onto WY 789
0.4 mi·52 sec·WY 789
Toward I 80 Business East, WY 789 North: Rawlins
6
Turn left onto I 80 Bus; US 30 Bus; WY 789
1.7 mi·2 min·West Spruce Street
7
Turn left onto US 287; WY 789
44 mi·50 min·3rd Street
8
Continue on WY 220
64 mi·1 hr 12 min·WY 220
9
Turn left onto WY 257
7.3 mi·8 min·Casper West Belt
10
Continue on US 20; US 26
3.0 mi·3 min·US 20; US 26
11
Turn left
0.4 mi·50 sec
Toward I 25 North, US 87 North: Midwest
12
Merge onto I 25; US 87
111 mi·1 hr 44 min·I 25; US 87
13
Keep slight left at fork onto US 87
31 mi·33 min·US 87
Toward I 90 West, US 87 North: Sheridan
14
Take the exit onto I 90
0.4 mi·57 sec·I 90
Toward Brundage Lane
15
Turn left onto I 90 Business; US 14; US 87
0.3 mi·36 sec·East Brundage Lane
16
Turn right onto I 90 Business; US 14 Business; US 87 Business
1.8 mi·2 min·Coffeen Avenue
17
Turn right onto I 90 Business; US 14 Business; US 87 Business
0.1 mi·18 sec·South Main Street
18
Turn left onto West Loucks Street
80 ft·1 sec·West Loucks Street
19
Arrive at destination
West Loucks Street
Trip Plan
Given the 6h 42m estimated duration, starting your drive from Green River early in the morning will allow ample time to reach Sheridan before evening. With only one recommended stop, plan your refueling and rest breaks strategically, perhaps around the halfway point. Keep an eye on your fuel gauge, especially during the 119.3-mile stretch on the Dwight D. Eisenhower Highway, as services can be spaced out. The $61 fuel cost estimate is helpful for budgeting your trip. This is a manageable one-day drive, so you have flexibility in your departure time.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 193.2 miles from Green River, WY, or about 3h 24m into the drive.
The longest continuous stretch on this route runs about 119.3 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 85 miles or 1h 25m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 193.2 miles or 3h 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 5h 40m
Traffic, exits, and arrival timing usually matter more near Sheridan, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Green River, WY 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 Green River, WY
This is one driving day of about 386.4 miles and 6h 42m.
Your first comfortable stop window is around 85 miles from Green River, WY.
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 Dwight D. Eisenhower Highway for about 119.3 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 15
5 decision points cluster between mile 0 and 386.4 — 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|I 80 Bus; US 30 Bus / East Flaming Gorge Way
Turn left onto I 80 Bus; US 30 Bus / East Flaming Gorge Way
Navigation decision point
5
121 mi into trip|~2h in|WY 789
Take the exit onto WY 789 toward I 80 Business East, WY 789 North: Rawlins
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 80 Business East, WY 789 North: Rawlin...
5
241.1 mi into trip|~4h 19m in
Turn left toward I 25 North, US 87 North: Midwest
Multiple destination signs - pick the right one
Toward I 25 North, US 87 North: Midwest
6
352.2 mi into trip|~6h 4m in|US 87
Keep slight left at fork onto US 87 toward I 90 West, US 87 North: Sheridan
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 90 West, US 87 North: Sheridan
5
386.4 mi into trip|~6h 42m in|West Loucks Street
Turn left onto West Loucks Street
Navigation decision point
Fuel & Cost
Regular Gas
$60.23 one way
$120.45 round trip
$3.96/gal25.4 MPG avg135 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$63.48
$126.96
premium
$4.47
$68.06
$136.12
diesel
$4.80
$72.96
$145.92
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$60
Meals
$25–$50
Total
$85–$110
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 135.2 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $41 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
115.9
1
$40.57
$18.55
Efficient EV
96.6
1
$33.81
$15.46
EV Truck/SUV
154.6
1
$54.10
$24.73
Gas CO2
135 kg
EV CO2
45 kg (67% 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 17, 2026
Origin
Green River, WY
Evening
in Green River on Saturday
Local time
8:55 PM
MDT
Current temp
58°F
Partly Cloudy
NE 2 to 9 mph6% chanceLive forecast
Flood Watch
Flood Watch issued July 16 at 10:55PM MDT until July 16 at 11:00PM MDT by NWS Riverton WY
Heat Advisory
Heat Advisory issued July 16 at 7:09PM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD
Destination
Sheridan, WY
Evening
in Sheridan on Saturday
Local time
8:55 PM
MDT
Current temp
60°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
WSW 2 mph29% chanceLive forecast
Flood Watch
Flood Watch issued July 16 at 10:55PM MDT until July 16 at 11:00PM MDT by NWS Riverton WY
Heat Advisory
Heat Advisory issued July 16 at 7:09PM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD
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
2 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
6h 42m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
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 trip offers a mixed drive, with 54% of the route on highways. You'll spend a significant portion of your time on the Dwight D. Eisenhower Highway, including the longest uninterrupted stretch of 119.3 miles. The drive transitions to I 25, providing a consistent pace for much of the journey. While largely a highway experience, the inclusion of WY 220 suggests some variation in road type as you progress. Overall, anticipate a predominantly fast-paced drive with clear signage.
54% highway, the rest on surface roads — varied driving throughout.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 119.3 mi on Dwight D. Eisenhower Highway.
How Hard Is This Drive?
4/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near I 80 Bus; US 30 Bus / East Flaming Gorge Way.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 6h 42m, endurance matters. Plan breaks every 2-3 hours. The 15 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: near the start (I 80 Bus; US 30 Bus / East Flaming Gorge Way): Navigation decision point; at 121 miles (WY 789): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 241.1 miles: Multiple destination signs - pick the right one.
The longest stretch is about 119.3 miles on Dwight D. Eisenhower Highway. The full list of main roads is in the Roads section above.
Yes — we found about 10 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.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Sheridan, WY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 10 rest areas along the route for bathroom stops.
Mostly yes along the main roads, but rural stretches through WY can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (I 80 Bus; US 30 Bus / East Flaming Gorge Way): Navigation decision point; at 121 miles (WY 789): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 241.1 miles: Multiple destination signs - pick the right one.
Not recommended in a single day. At 6.7 hours each way, a round trip means 13.4 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Sheridan, WY before the return drive.
