How far is Green River, WY from Lusk, WY?
The driving distance from Green River, WY to Lusk, WY is about 346.4 miles (557.4 km), with a travel time of about 06h 13m by car.
- The straight-line flight distance is about 270.6 miles (435.5 km).
- For a round trip, plan for roughly 12h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM MDT.
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 06h 13m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Green River and Lusk.
Turn-by-Turn Driving Directions
Step-by-step road directions between Green River and Lusk.
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1
Start on North 1st East
11 m · 7 sec · North 1st East
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2
Turn left onto East Flaming Gorge Way
1.1 mi · 3 min · East Flaming Gorge Way
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3
Take the ramp straight toward I 80 East, US 30 East: Rock Springs
1.1 km · 1 min
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4
Merge slight left onto Dwight D. Eisenhower Highway
119.3 mi · 1 hr 56 min · Dwight D. Eisenhower Highway
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5
Take the exit slight right toward I 80 Business East, WY 789 North: Rawlins
1997 ft · 52 sec
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6
Turn left onto West Spruce Street
1.7 mi · 3 min · West Spruce Street
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7
Turn left onto 3rd Street
44.1 mi · 51 min · 3rd Street
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8
Continue straight
63.7 mi · 1 hr 13 min
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9
Turn left onto Casper West Belt
7.3 mi · 9 min · Casper West Belt
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10
Continue straight
2.7 mi · 3 min
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11
Take the exit right
62.8 mi · 1 hr 6 min
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12
Take the exit slight right toward US 18 East, US 20 East: Lusk
1532 ft · 41 sec
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13
Turn left onto US Highway 18/20
18.4 mi · 20 min · US Highway 18/20
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14
Continue on US Highway 20
23.3 mi · 25 min · US Highway 20
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15
Continue on West 8th Street
882 ft · 32 sec · West 8th Street
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16
Turn left onto South Main Street
2604 ft · 1 min · South Main Street
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17
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Green River and Lusk.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
119 mi · 01h 56m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Green River and Sunny near Lusk.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Green River to Lusk?
The road trip is about 346.4 miles (557.4 km) and usually takes 06h 13m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Bairoil is a useful midpoint, sitting about 172.9 miles from Green River and 173.5 miles from Lusk.
How much longer is the road route than the straight-line distance?
The direct path is about 270.6 miles (435.5 km), while the road route adds roughly 75.8 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.57 one way or $95.14 round trip. Estimated CO2 is about 108.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Green River and Sunny near Lusk.
Flight Path Map
This map shows the direct air route between Green River and Lusk. Straight-line distance: 270.59 mi (435.48 km).
#1 Green River
River in Wyoming, Utah, and Colorado, in the United States, that is a tributary of the Colorado River
| Population | 11,788 |
| Coordinates | 41.5285800, -109.4662500 |
| Altitude | 1864 |
| Country | United States |
#2 Lusk
Town in Wyoming
| Population | 1,474 |
| Coordinates | 42.7624700, -104.4521700 |
| Altitude | 1530 |
| Country | United States |
End: Lusk (-104.45217, 42.76247)
Estimated Travel Time
Distance: 557 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 32m |
| 40 mph (64.37 km/h) | 08h 39m |
| 50 mph (80.47 km/h) | 06h 55m |
| 60 mph (96.56 km/h) | 05h 46m |
| 70 mph (112.65 km/h) | 04h 56m |
| 80 mph (129 km/h) | 04h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $47.57 | $95.14 |
| Mid-grade | $4.23 | $51.70 | $103.41 |
| Premium | $4.55 | $55.59 | $111.18 |
| Diesel | $5.41 | $66.13 | $132.27 |
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 Wyoming · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.