How far is Watertown, SD from Yankton, SD?
The driving distance from Watertown, SD to Yankton, SD is about 187.8 miles (302.3 km), with a travel time of about 02h 39m by car.
- The straight-line flight distance is about 140.9 miles (226.7 km).
- For a round trip, plan for roughly 05h 19m 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 39m.
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.
City in South Dakota, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Watertown and Yankton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Watertown and Yankton.
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1
Start on South Broadway
885 ft · 31 sec · South Broadway
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2
Turn right onto 1st Avenue Northeast
1.4 mi · 3 min · 1st Avenue Northeast
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3
Continue on Willow Creek Drive Southeast
1.1 mi · 2 min · Willow Creek Drive Southeast
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4
Turn left onto 9th Avenue Southeast
2518 ft · 50 sec · 9th Avenue Southeast
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5
Take the ramp slight right toward I-29: Brookings
1582 ft · 39 sec
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6
Merge slight left
150.6 mi · 2 hr 24 min
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7
Take the exit slight right toward SD 50: Vermillion, Yankton
755 ft · 18 sec
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8
Keep slight right to continue on SD 50: Vermillion, Yankton
142 m · 11 sec
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9
Merge slight left onto SD Highway 50
28.8 mi · 33 min · SD Highway 50
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10
Continue on East 4th Street
3.8 mi · 4 min · East 4th Street
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11
Continue on West 4th Street
1391 ft · 26 sec · West 4th Street
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12
Arrive at your destination
0 m · 1 sec · West 4th Street
Car Route Details
A richer read on the saved driving route between Watertown and Yankton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I-29
Merge slight left
151 mi · 02h 24m
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 Sunny leaving Watertown and Sunny near Yankton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Watertown to Yankton?
The road trip is about 187.8 miles (302.3 km) and usually takes 02h 39m 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?
Crooks is a useful midpoint, sitting about 93.6 miles from Watertown and 94.2 miles from Yankton.
How much longer is the road route than the straight-line distance?
The direct path is about 140.9 miles (226.7 km), while the road route adds roughly 46.9 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 1:10 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.00 one way or $50.00 round trip. Estimated CO2 is about 58.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Watertown and Sunny near Yankton.
Flight Path Map
This map shows the direct air route between Watertown and Yankton. Straight-line distance: 140.85 mi (226.67 km).
#1 Watertown
City in and county seat of Codington County, South Dakota, United States
| Population | 22,303 |
| Coordinates | 44.8994100, -97.1150700 |
| Altitude | 528 |
| Country | United States |
#2 Yankton
County seat of Yankton County, South Dakota, United States
| Population | 14,651 |
| Coordinates | 42.8711100, -97.3972800 |
| Altitude | 368 |
| Country | United States |
End: West 4th Street (-97.397278, 42.871173)
Estimated Travel Time
Distance: 302 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 15m |
| 40 mph (64.37 km/h) | 04h 41m |
| 50 mph (80.47 km/h) | 03h 45m |
| 60 mph (96.56 km/h) | 03h 07m |
| 70 mph (112.65 km/h) | 02h 40m |
| 80 mph (129 km/h) | 02h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $25.00 | $50.00 |
| Mid-grade | $4.25 | $28.20 | $56.39 |
| Premium | $4.65 | $30.86 | $61.71 |
| Diesel | $5.30 | $35.17 | $70.33 |
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 South Dakota · Apr 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.