How far is Duncan, OK from Stillwater, OK?
The driving distance from Duncan, OK to Stillwater, OK is about 146.1 miles (235.2 km), with a travel time of about 02h 24m by car.
- The straight-line flight distance is about 122.5 miles (197.1 km).
- For a round trip, plan for roughly 04h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 24m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Human settlement in Oklahoma County, Oklahoma, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Duncan and Stillwater.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncan and Stillwater.
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1
Start on North 9th Street
47 m · 11 sec · North 9th Street
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2
Turn right onto West Main Street
3031 ft · 1 min · West Main Street
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3
Turn right
1.6 mi · 3 min
-
4
Continue straight
600 ft · 10 sec
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5
Continue straight
3085 ft · 56 sec
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6
Continue straight
21.2 mi · 29 min
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7
Continue straight
13.4 mi · 16 min
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8
Take the exit slight right toward I 44 East: Oklahoma City
2339 ft · 58 sec
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9
Merge slight left onto Harry E. Bailey Turnpike
26.5 mi · 25 min · Harry E. Bailey Turnpike
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10
Continue on Will Rogers Expressway
15.8 mi · 19 min · Will Rogers Expressway
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11
Keep slight right to continue on Will Rogers Expressway
7.7 mi · 10 min · Will Rogers Expressway
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12
Merge slight right onto World War II Veterans Memorial Highway
5.1 mi · 6 min · World War II Veterans Memorial Highway
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13
Continue on Shannon Miller Parkway
4.1 mi · 5 min · Shannon Miller Parkway
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14
Continue on World War II Veterans Memorial Highway
14.7 mi · 15 min · World War II Veterans Memorial Highway
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15
Take the exit slight right toward OK 33: Guthrie, Perkins, Cushing
1375 ft · 37 sec
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16
Turn right
1.5 km · 1 min
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17
Continue straight
21.2 mi · 24 min
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18
Turn left onto South Perkins Road
9 mi · 12 min · South Perkins Road
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19
Turn left onto East 6th Avenue
2074 ft · 1 min · East 6th Avenue
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20
Arrive at your destination
0 m · 1 sec · East 6th Avenue
Car Route Details
A richer read on the saved driving route between Duncan and Stillwater.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Harry E. Bailey Turnpike
Merge slight left onto Harry E. Bailey Turnpike
26.5 mi · 00h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Cloudy leaving Duncan and Mostly Cloudy then Slight Chance Showers And Thunderstorms near Stillwater.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Duncan to Stillwater?
The road trip is about 146.1 miles (235.2 km) and usually takes 02h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Valley Brook is a useful midpoint, sitting about 71.8 miles from Duncan and 74.3 miles from Stillwater.
How much longer is the road route than the straight-line distance?
The direct path is about 122.5 miles (197.1 km), while the road route adds roughly 23.6 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.54 one way or $39.08 round trip. Estimated CO2 is about 45.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Duncan and Mostly Cloudy then Slight Chance Showers And Thunderstorms near Stillwater.
Stop Ideas Near Valley Brook
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 Valley Brook.
Santa Fe Depot
Norman
Purcell
Guthrie, OK
Flight Path Map
This map shows the direct air route between Duncan and Stillwater. Straight-line distance: 122.46 mi (197.08 km).
#1 Duncan
City in Oklahoma
| Population | 22,259 |
| Coordinates | 34.5023000, -97.9578100 |
| Altitude | 342 |
| Country | United States |
#2 Stillwater
The most populous city in Payne County, Oklahoma.
| Population | 50,306 |
| Coordinates | 36.1156100, -97.0583700 |
| Altitude | 273 |
| Country | United States |
End: East 6th Avenue (-97.05837, 36.115655)
Estimated Travel Time
Distance: 235 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 52m |
| 40 mph (64.37 km/h) | 03h 39m |
| 50 mph (80.47 km/h) | 02h 55m |
| 60 mph (96.56 km/h) | 02h 26m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $19.54 | $39.08 |
| Mid-grade | $4.26 | $21.98 | $43.95 |
| Premium | $4.63 | $23.87 | $47.73 |
| Diesel | $5.42 | $27.94 | $55.88 |
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 Oklahoma · 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.