How far is Green River, WY from Afton, WY?
The driving distance from Green River, WY to Afton, WY is about 165.4 miles (266.2 km), with a travel time of about 03h 05m by car.
- The straight-line flight distance is about 111.7 miles (179.7 km).
- For a round trip, plan for roughly 06h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 05m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Wyoming, USA, seat of Lincoln County
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Slight Chance T-storms
Rain And Snow
Driving Route Map
The map below follows the saved road route between Green River and Afton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Green River and Afton.
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1
Start on North 1st East
11 m · 3 sec · North 1st East
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2
Turn right onto East Flaming Gorge Way
1.1 mi · 3 min · East Flaming Gorge Way
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3
Keep slight left to continue on I 80 West, US 30 West: Evanston
2981 ft · 1 min
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4
Merge slight left onto Dwight D. Eisenhower Highway
22.5 mi · 22 min · Dwight D. Eisenhower Highway
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5
Take the exit slight right toward US 30 West: Kemmerer, Pocatello
98.8 mi · 1 hr 49 min
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6
Turn right
9.5 mi · 10 min
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7
Continue straight
1.3 km · 59 sec
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8
Turn right
32.2 mi · 39 min
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9
Turn right onto East 4th Avenue
135 m · 21 sec · East 4th Avenue
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10
Turn right
33 m · 8 sec
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11
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Green River and Afton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 30 West
Take the exit slight right toward US 30 West: Kemmerer, Pocatello
98.8 mi · 01h 49m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Rain Showers then Slight Chance T-storms leaving Green River and Rain And Snow near Afton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Green River to Afton?
The road trip is about 165.4 miles (266.2 km) and usually takes 03h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Kemmerer is a useful midpoint, sitting about 82.6 miles from Green River and 82.8 miles from Afton.
How much longer is the road route than the straight-line distance?
The direct path is about 111.7 miles (179.7 km), while the road route adds roughly 53.7 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:50 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.74 one way or $45.47 round trip. Estimated CO2 is about 51.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Slight Chance T-storms around Green River and Rain And Snow near Afton.
Flight Path Map
This map shows the direct air route between Green River and Afton. Straight-line distance: 111.68 mi (179.73 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 Afton
Town in Wyoming, United States
| Population | 2,071 |
| Coordinates | 42.7249300, -110.9318700 |
| Altitude | 1902 |
| Country | United States |
End: Afton (-110.93187, 42.72493)
Estimated Travel Time
Distance: 266 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 30m |
| 40 mph (64.37 km/h) | 04h 08m |
| 50 mph (80.47 km/h) | 03h 18m |
| 60 mph (96.56 km/h) | 02h 45m |
| 70 mph (112.65 km/h) | 02h 21m |
| 80 mph (129 km/h) | 02h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $22.74 | $45.47 |
| Mid-grade | $4.23 | $24.71 | $49.42 |
| Premium | $4.55 | $26.57 | $53.13 |
| Diesel | $5.41 | $31.61 | $63.21 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.