How far is Sundance, WY from Green River, WY?
The driving distance from Sundance, WY to Green River, WY is about 426.6 miles (686.5 km), with a travel time of about 07h 02m by car.
- The straight-line flight distance is about 325.1 miles (523.2 km).
- For a round trip, plan for roughly 14h 04m 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 07h 02m.
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 in Uinta County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance T-storms
Driving Route Map
The map below follows the saved road route between Sundance and Green River.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sundance and Green River.
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1
Start on East Cleveland Street
1834 ft · 31 sec · East Cleveland Street
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2
Continue on South West Street
2644 ft · 45 sec · South West Street
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3
Continue on US Highway 14
1.3 km · 1 min · US Highway 14
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4
Take the ramp left
56.3 mi · 57 min
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5
Take the exit slight right toward Garner Lake Road
1954 ft · 49 sec
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6
Turn left onto North Garner Lake Road
4.2 mi · 7 min · North Garner Lake Road
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7
Turn left onto South Douglas Highway
1.7 mi · 2 min · South Douglas Highway
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8
Continue on State Highway 59 South
32.8 mi · 36 min · State Highway 59 South
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9
Turn right
51.3 mi · 59 min
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10
Turn left
18.1 mi · 21 min
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11
Take the exit left toward I 25 South: Casper
2173 ft · 53 sec
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12
Merge slight left
20.1 mi · 19 min
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13
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
1757 ft · 43 sec
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14
Keep slight left
577 ft · 17 sec
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15
Turn right
2.7 mi · 3 min
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16
Continue on Casper West Belt
7.3 mi · 9 min · Casper West Belt
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17
Turn right onto County Road 308
63.7 mi · 1 hr 12 min · County Road 308
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18
Continue straight
44.1 mi · 51 min
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19
Turn right onto West Spruce Street
1.5 mi · 2 min · West Spruce Street
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20
Take the ramp right
1 km · 1 min
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21
Merge slight left onto Dwight D. Eisenhower Highway
119.1 mi · 1 hr 56 min · Dwight D. Eisenhower Highway
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22
Take the exit slight right toward I 80 Business West, US 30 Business West: Green River
1.9 mi · 4 min
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23
Turn right onto North 1st East
11 m · 2 sec · North 1st East
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24
Arrive at your destination
0 m · 1 sec · North 1st East
Car Route Details
A richer read on the saved driving route between Sundance and Green River.
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.
Mostly Sunny then Slight Chance Showers And Thunderstorms leaving Sundance and Mostly Sunny then Slight Chance T-storms near Green River.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sundance to Green River?
The road trip is about 426.6 miles (686.5 km) and usually takes 07h 02m 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?
Mountain View is a useful midpoint, sitting about 213.9 miles from Sundance and 212.6 miles from Green River.
How much longer is the road route than the straight-line distance?
The direct path is about 325.1 miles (523.2 km), while the road route adds roughly 101.5 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 $58.59 one way or $117.18 round trip. Estimated CO2 is about 133.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Showers And Thunderstorms around Sundance and Mostly Sunny then Slight Chance T-storms near Green River.
Stop Ideas Near Mountain View
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 Mountain View.
Casper, Wyoming
Douglas, Wyoming
Flight Path Map
This map shows the direct air route between Sundance and Green River. Straight-line distance: 325.12 mi (523.23 km).
#1 Sundance
Town in Crook County, Wyoming, United States
| Population | 1,296 |
| Coordinates | 44.4063700, -104.3757800 |
| Altitude | 1444 |
| Country | United States |
#2 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 |
End: North 1st East (-109.466324, 41.528621)
Estimated Travel Time
Distance: 687 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 12m |
| 40 mph (64.37 km/h) | 10h 39m |
| 50 mph (80.47 km/h) | 08h 31m |
| 60 mph (96.56 km/h) | 07h 06m |
| 70 mph (112.65 km/h) | 06h 05m |
| 80 mph (129 km/h) | 05h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $58.59 | $117.18 |
| Mid-grade | $4.23 | $63.68 | $127.35 |
| Premium | $4.55 | $68.46 | $136.92 |
| Diesel | $5.41 | $81.45 | $162.90 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.