Cody to Upton is 298.2 miles and takes about 5h 40m via I 90 and Greybull Highway, with a fuel budget near $49 and enough daylight to finish in a day. This trip stays within the Mountain West region, connecting two points in Wyoming. Expect a mixed driving experience with a significant portion on the interstate, offering a straightforward path. It's a manageable one-day drive, making it a good option if you're looking to cover ground efficiently while still having time to explore your destinations.
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
149.1 miles from Cody, WY
A natural place for your longest stop of the day
, about 3h 2m into the drive
.
Main Roads
Road
Distance
Duration
I 90
146.3 mi
2h 25m
Greybull Avenue
78.8 mi
1h 43m
Greybull Highway
49.9 mi
55m
US Highway 16
19.3 mi
28m
US 14
2.3 mi
3m
17th Street
0.7 mi
1m
East Converse Street
0.3 mi
<1m
I-90 Access Road
0.2 mi
<1m
Longest stretch:
I 90
— 146.3 mi, about 2h 25m
Traffic on I-90
Hour-of-day weekday pattern from 12 FHWA count stations on your route.
Peak
4 PM
~237 veh/hr typical
· worst 357
Quietest
2 AM
~11 veh/hr
Peak-to-quiet ratio
21.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 51 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 Cody, WY and Upton, WY.
1
Start on US 14A; WY 120
504 ft·22 sec·16th Street
2
Turn left onto Beck Avenue
493 ft·17 sec·Beck Avenue
3
Turn right onto US 14; US 16; US 20; WY 120
0.7 mi·1 min·17th Street
4
Continue on US 14; US 16; US 20; WY 120
50 mi·55 min·Greybull Highway
5
Continue on US 14; US 16; US 20; WY 789
2.3 mi·3 min·US 14; US 16; US 20; WY 789
6
Turn left onto US 14
79 mi·1 hr 43 min·Greybull Avenue
7
Take the ramp onto I 90; US 87
0.4 mi·50 sec·I 90; US 87
8
Continue on I 90; US 14; US 87
146 mi·2 hr 24 min·I 90; US 14; US 87
9
Take the exit
0.2 mi·23 sec
10
Turn right onto I 90 Business
0.2 mi·21 sec·I-90 Access Road
11
At end of road, turn left onto US 16
0.3 mi·30 sec·East Converse Street
12
Continue on US 16
19 mi·28 min·US Highway 16
13
Turn left onto WY 116
55 ft·1 sec·Ash Street
14
Arrive at destination
WY 116
Trip Plan
Given the 5h 40m estimated drive time, departing Cody in the morning is your best bet to arrive in Upton with daylight to spare. With only one suggested stop, you can decide whether to break up the 146.3-mile stretch on I 90 or push through. Keep an eye on fuel, especially as you move onto the Greybull Highway sections where services might be less frequent than on the interstate. The fuel cost estimate of $49 should help you budget accordingly.
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 149.1 miles from Cody, WY, or about 3h 2m into the drive.
The longest continuous stretch on this route runs about 146.3 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 66 miles or 1h 18m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 149.1 miles or 3h 2m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 37m
Traffic, exits, and arrival timing usually matter more near Upton, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Cody, 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 Cody, WY
This is one driving day of about 298.2 miles and 5h 40m.
Your first comfortable stop window is around 66 miles from Cody, 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 I 90 for about 146.3 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 8
5 decision points cluster between mile 0.1 and 278.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.1 mi into trip|~0m in|Beck Avenue
Turn left onto Beck Avenue
Navigation decision point
4
0.2 mi into trip|~0m in|US 14; US 16; US 20; WY 120 / 17th Street
Turn right onto US 14; US 16; US 20; WY 120 / 17th Street
Navigation decision point
4
53.1 mi into trip|~1h 1m in|US 14 / Greybull Avenue
Turn left onto US 14 / Greybull Avenue
Navigation decision point
4
278.4 mi into trip|~5h 11m in|I 90 Business / I-90 Access Road
Turn right onto I 90 Business / I-90 Access Road
Navigation decision point
4
278.6 mi into trip|~5h 11m in|US 16 / East Converse Street
At end of road, turn left onto US 16 / East Converse Street
Navigation decision point
Fuel & Cost
Regular Gas
$46.48 one way
$92.96 round trip
$3.96/gal25.4 MPG avg104 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$48.99
$97.98
premium
$4.47
$52.53
$105.05
diesel
$4.80
$56.31
$112.61
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$46
Meals
$25–$50
Total
$71–$96
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 104.3 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $31 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
89.5
1
$31.31
$14.31
Efficient EV
74.6
0
$26.09
$11.93
EV Truck/SUV
119.3
1
$41.75
$19.08
Gas CO2
104 kg
EV CO2
35 kg (66% 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
Cody, WY
Morning
in Cody on Saturday
Local time
8:28 AM
MDT
Current temp
90°F
Chance Showers And Thunderstorms
SE 8 mph57% chanceLive forecast
Heat Advisory
Heat Advisory issued July 17 at 3:07PM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD
Special Weather Statement
Special Weather Statement issued July 17 at 2:52PM MDT by NWS Salt Lake City UT
Destination
Upton, WY
Morning
in Upton on Saturday
Local time
8:28 AM
MDT
Current temp
95°F
Slight Chance Showers And Thunderstorms
E 13 mph15% chanceLive forecast
Heat Advisory
Heat Advisory issued July 17 at 3:07PM MDT until July 19 at 9:00PM MDT by NWS Rapid City SD
Special Weather Statement
Special Weather Statement issued July 17 at 2:52PM MDT by NWS Salt Lake City UT
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
5 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
5h 40m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Devils Tower National Monument
National Monument
The Tower is an astounding geologic feature that protrudes out of the prairie surrounding the Black Hills. It is considered sacred by Northern Plains Indians and indigenous people. Hundreds of paralle...
25 mi from route
~63 min detour
$25
near mile 277.6
Park Closure: Temporary closure of some rock climbing routes to protect falcon nesting sites.
Park Closure: The campground is closed for the season.
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend 56% of this 298.2-mile drive on highways. The longest continuous stretch on I 90 spans 146.3 miles, which means you'll experience some sustained cruising. After that, you'll transition to Greybull Avenue and Greybull Highway, which will feel more like surface road driving. This mix offers a change of pace from pure interstate travel.
56% highway, the rest on surface roads — varied driving throughout.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 146.3 mi on I 90.
How Hard Is This Drive?
3/10
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 around 0.1 miles in near Beck Avenue.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 40m 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 0.1 miles (Beck Avenue): Navigation decision point; at 0.2 miles (US 14; US 16; US 20; WY 120 / 17th Street): Navigation decision point; at 53.1 miles (US 14 / Greybull Avenue): Navigation decision point.
Cody is in Northwest Wyoming, close to the east side Yellowstone National Park. Unlike Jackson, with its pet spas and high-end shopping, Cody is more authentically cowboy. Cody is famous for its rodeo, which occurs nightly during the summer, and for its proximity to fantastic wilderness adventures in Yellowstone and in the national forests surrounding the park.
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 146.3 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 8 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.
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 8 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: at 0.1 miles (Beck Avenue): Navigation decision point; at 0.2 miles (US 14; US 16; US 20; WY 120 / 17th Street): Navigation decision point; at 53.1 miles (US 14 / Greybull Avenue): Navigation decision point.
Yes — Devils Tower National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.7 hours each way, a round trip means 11.4 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Upton, WY before the return drive.
