This quick 19.5-mile drive from Saint Onge to Kirk in South Dakota should only take about 31 minutes, making it a perfect candidate for a single-day trip. You'll primarily be on US Highway 85 and US Highway 14A, with a short section of Saint Onge Road connecting them. Given the short duration and minimal distance, you won't need to worry about overnight stays. The estimated fuel cost for this journey is a very reasonable $3. This route offers a straightforward transit through the Great Plains region, ideal for travelers looking for efficiency and simplicity on their road trip.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
This drive is short enough that no stops are needed.
Midpoint
9.8 miles from Saint Onge, SD
A natural place for your longest stop of the day
, about 15m into the drive
.
Drive Character
This drive presents a mixed bag of road types, with 49% of it being highway driving. You'll encounter stretches on major roads like US Highway 85, including one uninterrupted segment of 7.1 miles. The profile is described as a 'Mixed drive,' suggesting a blend of faster highway sections and potentially more local or varied road conditions. Expect a dynamic driving experience that shifts between open highway travel and possibly more winding or community-focused routes as you transition between Saint Onge and Kirk.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 15 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US Highway 85 is the longest continuous segment at about 7.1 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.2 miles in near CR 230 / Saint Onge Road.
Route Complexity5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
This drive requires moderate attention. Across 19.5 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.2 miles (CR 230 / Saint Onge Road): Navigation decision point; at 13.1 miles (US 14A; US 85 / Main Street): Navigation decision point; at 18.1 miles (Chicago Street): Navigation decision point.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
0.2 mi into trip|~0m in|CR 230 / Saint Onge Road
At end of road, turn left onto CR 230 / Saint Onge Road
Navigation decision point
5
13.1 mi into trip|~19m in|US 14A; US 85 / Main Street
At end of road, turn right onto US 14A; US 85 / Main Street
Navigation decision point
4
18.1 mi into trip|~25m in|Chicago Street
Turn right onto Chicago Street
Navigation decision point
5
18.1 mi into trip|~25m in|Chicago Street
Keep slight left at fork onto Chicago Street
Highway fork - watch signs carefully
4
19.2 mi into trip|~29m in|Lost Irishman Road
Turn left onto Lost Irishman Road
Navigation decision point
Main Roads
Road
Distance
Duration
US Highway 85
7.1 mi
8m
Saint Onge Road
5.8 mi
10m
US Highway 14A
2.6 mi
2m
Pioneer Way
1.1 mi
1m
Main Street
0.8 mi
1m
Mountain View Drive
0.7 mi
2m
Glendale Drive
0.5 mi
<1m
Lost Irishman Road
0.3 mi
1m
Longest stretch:
US Highway 85
— 7.1 mi, about 8m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Onge, SD and Kirk, SD.
1
Start on CR 560
0.2 mi·42 sec·Center Street
2
At end of road, turn left onto CR 230
5.8 mi·10 min·Saint Onge Road
3
Turn sharp left onto US 85
7.1 mi·8 min·US Highway 85
4
At end of road, turn right onto US 14A; US 85
0.8 mi·1 min·Main Street
5
Continue on US 14A; US 85
1.1 mi·1 min·Pioneer Way
6
Continue on US 14A; US 85 Truck
2.6 mi·2 min·US Highway 14A
7
Continue on US 14A; US 85 Truck
0.5 mi·37 sec·Glendale Drive
8
Turn right onto Chicago Street
147 ft·6 sec·Chicago Street
9
Keep slight left at fork onto Chicago Street
350 ft·15 sec·Chicago Street
10
Continue on 3rd Street
0.2 mi·49 sec·3rd Street
11
Turn left onto Mountain View Drive
0.7 mi·2 min·Mountain View Drive
12
Turn left onto Grier Avenue
0.2 mi·42 sec·Grier Avenue
13
Turn left onto Lost Irishman Road
0.3 mi·1 min·Lost Irishman Road
14
Turn left
249 ft·18 sec
15
Arrive at destination
Trip Plan
With a total travel time of just 31 minutes, this is a very flexible trip. You can easily depart at any time of day without needing to plan for significant rest stops. The fuel cost is minimal at just $3, so you don't need to stress about finding gas stations along this short stretch. A good tip for this route would be to check the specific conditions on US Highway 85 before you leave, as it constitutes the longest stretch of your journey and is a key part of the drive. Enjoy the ease of this short hop between two points in the Great Plains.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 9.8 miles from Saint Onge, SD, or about 15m into the drive.
The longest continuous stretch on this route runs about 7.1 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 19.5 miles or 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 9.8 miles or 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 23m
Traffic, exits, and arrival timing usually matter more near Kirk, SD than in the middle of the route.
Before You Leave
+
Have your navigation ready before leaving Saint Onge, SD.
Day 1
Settle into the route from Saint Onge, SD
This is one driving day of about 19.5 miles and 31m.
At 19.5 miles this is a quick drive — no planned stops needed.
The longest stretch is on US Highway 85 for about 7.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 9.8 mi from Saint Onge, SD
· 15m into the drive
The midpoint is around 9.8 miles from Saint Onge, SD, which is a good place for a longer meal and fuel stop.
Arriving in Kirk, SD
Allow a few extra minutes for the final approach into Kirk, SD if you are unfamiliar with the area.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$3.05 one way
$6.10 round trip
$3.97/gal25.4 MPG avg7 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$3.35
$6.69
premium
$4.89
$3.75
$7.51
diesel
$5.61
$4.31
$8.61
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$3
Meals
$25–$50
Total
$28–$53
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 6.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging
· 0 stops
· 71% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
5.9
0
$2.05
$0.94
Efficient EV
4.9
0
$1.71
$0.78
EV Truck/SUV
7.8
0
$2.73
$1.25
Gas CO2
7 kg
EV CO2
2 kg (71% 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 14, 2026
Origin
Saint Onge, SD
Evening
in Saint Onge on Wednesday
Local time
6:36 PM
MDT
Current temp
63°F
Chance Rain Showers
NW 7 mph30% chanceLive forecast
Fire Weather Watch
Fire Weather Watch issued April 14 at 12:55PM MDT until April 16 at 7:00PM MDT by NWS Rapid City SD
Destination
Kirk, SD
Evening
in Kirk on Wednesday
Local time
6:36 PM
MDT
Current temp
54°F
Chance Rain Showers
S 5 mph30% chanceLive forecast
Fire Weather Watch
Fire Weather Watch issued April 14 at 12:55PM MDT until April 16 at 7:00PM MDT by NWS Rapid City SD
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
9 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
31m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Saint Onge, SD to Kirk, SD covers 19.5 miles and takes about 31m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US Highway 85, Saint Onge Road, US Highway 14A. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 9.8 miles from Saint Onge, SD. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $3.05 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 19.5 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 0.2 miles (CR 230 / Saint Onge Road): Navigation decision point; at 13.1 miles (US 14A; US 85 / Main Street): Navigation decision point; at 18.1 miles (Chicago Street): Navigation decision point.
The route from Saint Onge, SD to Kirk, SD does not surface many named destination signs beyond the main corridor.
