Skip to main content

Trip from Green River, WY to Afton, WY

Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards

Drive Time

3h 5m

Distance

165.4 mi

266 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$26

one way

EV Charging

Unknown

Best Time to Leave

Save up to 34 min
4 AM
2h 54m ★
6 AM
3h 5m
8 AM
3h 28m
10 AM
3h 13m
12 PM
3h 11m
3 PM
3h 14m
5 PM
3h 27m
8 PM
2h 58m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city in and county seat of Sweetwater County, Wyoming, United States

Green River, WY

Wikimedia Commons

Downtown Afton, WY, WY

Afton, WY

Vintage Lenses

Trip Overview

The drive from Green River, WY to Afton, WY covers 165.4 miles and takes about 3h 5m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on US 30, US 89, Dwight D. Eisenhower Highway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 98.8 miles on US 30. At current regular gas prices, budget about $26.21 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

1 planned break

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

82.7 miles from Green River, WY

A natural place for your longest stop of the day , about 1h 30m into the drive .

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 3h 5m. Total distance: 165.4 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

3h 5m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (86%). Straightforward navigation.

Drive Character

This is a 3h 5m highway drive covering 165.4 miles, with most of the trip on US 30 and US 89. The longest continuous stretch is about 98.8 miles on US 30.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 11 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 30 is the longest continuous segment at about 98.8 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on US 30 and US 89. There are only a few real navigation decisions along the way. The trickiest moment comes around 1.1 miles in near I 80 Bus; US 30 Bus.

Driving Effort 3/10

Easy - simple navigation with a manageable amount of wheel time

Balances navigation complexity with total wheel time.

This is a straightforward 3h 5m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.

Where does it get tricky?

The main spots that need attention: at 1.1 miles (I 80 Bus; US 30 Bus): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 24.1 miles (US 30): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 133.2 miles (US 89): Navigation decision point.

Critical Maneuvers

5 of 8 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

6
1.1 mi into trip | ~2m in | I 80 Bus; US 30 Bus

Keep slight left at fork onto I 80 Bus; US 30 Bus toward I 80 West, US 30 West: Evanston

Highway fork - watch signs carefully. Multiple destination signs - pick the right one

Toward I 80 West, US 30 West: Evanston
5
24.1 mi into trip | ~25m in | US 30

Take the exit onto US 30 toward US 30 West: Kemmerer, Pocatello

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Toward US 30 West: Kemmerer, Pocatello
4
133.2 mi into trip | ~2h 25m in | US 89

Turn right onto US 89

Navigation decision point

4
165.3 mi into trip | ~3h 4m in | East 4th Avenue

Turn right onto East 4th Avenue

Navigation decision point

5
165.4 mi into trip | ~3h 5m in

Turn right

Navigation decision point

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

On the drive from Green River, WY to Afton, WY, road signs begin pointing toward Pocatello along the way.

Pocatello

24.1 mi in | ~25m | via US 30

Main Roads

Road Distance Duration
US 30 98.8 mi 1h 49m
US 89 32.2 mi 38m
Dwight D. Eisenhower Highway 22.5 mi 21m
WY 89 9.5 mi 10m
East Flaming Gorge Way 1.1 mi 2m
ID 61 0.8 mi <1m
I 80 Bus 0.6 mi 1m
East 4th Avenue <0.1 mi <1m
Longest stretch: US 30 — 98.8 mi, about 1h 49m

Turn-by-Turn Driving Directions

Step-by-step road directions between Green River, WY and Afton, WY.

1

Start on North 1st East

35 ft · 3 sec · North 1st East
2

Turn right onto I 80 Bus; US 30 Bus

1.1 mi · 2 min · East Flaming Gorge Way
3

Keep slight left at fork onto I 80 Bus; US 30 Bus

0.6 mi · 1 min · I 80 Bus; US 30 Bus
Toward I 80 West, US 30 West: Evanston
4

Merge onto I 80; US 30

22 mi · 21 min · Dwight D. Eisenhower Highway
5

Take the exit onto US 30

99 mi · 1 hr 49 min · US 30
Toward US 30 West: Kemmerer, Pocatello
6

Turn right onto WY 89

9.5 mi · 10 min · WY 89
7

Continue on ID 61

0.8 mi · 59 sec · ID 61
8

Turn right onto US 89

32 mi · 38 min · US 89
9

Turn right onto East 4th Avenue

442 ft · 21 sec · East 4th Avenue
10

Turn right

108 ft · 7 sec
11

Arrive at destination

Trip Plan

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 82.7 miles from Green River, WY, or about 1h 30m into the drive.
The longest continuous stretch on this route runs about 98.8 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 36 miles or 38m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 82.7 miles or 1h 30m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 2h 28m

Traffic, exits, and arrival timing usually matter more near Afton, 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 165.4 miles and 3h 5m.

Your first comfortable stop window is around 36 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 US 30 for about 98.8 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 82.7 mi from Green River, WY · 1h 30m into the drive

Downtown Kemmerer, WY, WY

Mid-route town

Meal stop

Kemmerer, WY

83 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Kemmerer, WY

Fuel and coffee

A short stop after about 36 miles helps settle the day before fatigue starts building.

Kemmerer, WY

Meal break

The midpoint is around 82.7 miles from Green River, WY, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before US 30 if your tank is already low. That segment runs about 98.8 miles.

Arriving in Afton, WY

The final approach into Afton, WY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Afton, WY.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$26.21 one way

$52.42 round trip

$4.03/gal 25.4 MPG avg 58 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.22 $27.47 $54.95
premium $4.53 $29.51 $59.01
diesel $5.61 $36.52 $73.04

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$26

Meals

$25–$50

Total

$51–$76

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 57.9 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $17 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 49.6 0 $17.37 $7.94
Efficient EV 41.4 0 $14.47 $6.62
EV Truck/SUV 66.2 0 $23.16 $10.59

Gas CO2

58 kg

EV CO2

19 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

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 Apr 15, 2026

Origin

Green River, WY

Evening in Green River on Friday

Local time

6:46 PM

MDT

Current temp

65°F

Unavailable

Live forecast

Destination

Afton, WY

Evening in Afton on Friday

Local time

6:46 PM

MDT

Current temp

58°F

Unavailable

Live 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

7 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

3h 5m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Green River, WY to Afton, WY covers 165.4 miles and takes about 3h 5m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are US 30, US 89, Dwight D. Eisenhower Highway. Most of the drive stays on highways, so watch for ramps and exits.

This is a comfortable same-day trip.

The midpoint is about 82.7 miles from Green River, WY. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $26.21 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.

Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.

This is a straightforward 3h 5m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.

The main spots that need attention: at 1.1 miles (I 80 Bus; US 30 Bus): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 24.1 miles (US 30): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 133.2 miles (US 89): Navigation decision point.

On the drive from Green River, WY to Afton, WY, road signs begin pointing toward Pocatello along the way.

How this page is built

Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

Was this helpful?

Thanks for your feedback!

Your tip has been submitted. Thanks!

/500

Explore More

More trips to Afton, WY

Explore more options from Green River, WY or browse trips ending in Afton, WY.

Looking for more statewide routes? Browse WY road trips.