How far is Tyndall, SD from Spearfish, SD?
The driving distance from Tyndall, SD to Spearfish, SD is about 376.1 miles (605.2 km), with a travel time of about 05h 37m by car.
- The straight-line flight distance is about 316.6 miles (509.5 km).
- For a round trip, plan for roughly 11h 14m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 37m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Town in South Dakota, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Tyndall and Spearfish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Tyndall and Spearfish.
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1
Start on West 18th Avenue
15 m · 7 sec · West 18th Avenue
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2
Turn left onto Main Street
914 ft · 30 sec · Main Street
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3
Turn left onto West 20th Avenue
2632 ft · 1 min · West 20th Avenue
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4
Continue on 303rd Street
1.3 mi · 3 min · 303rd Street
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5
Turn right onto SD Highway 50
3.8 mi · 6 min · SD Highway 50
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6
Turn right onto SD Highway 37
47.1 mi · 1 hr 10 min · SD Highway 37
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7
Continue on South Highway 37
1 mi · 2 min · South Highway 37
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8
Continue on South Burr Street
1936 ft · 35 sec · South Burr Street
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9
Take the ramp slight left
2058 ft · 53 sec
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10
Merge slight left
274.3 mi · 4 hr 19 min
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11
Continue straight
31 mi · 31 min
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12
Continue straight
14.2 mi · 14 min
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13
Take the exit slight right toward Jackson Boulevard, Black Hills State University
1541 ft · 43 sec
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14
Turn left onto East Jackson Boulevard
1 km · 2 min · East Jackson Boulevard
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15
Turn left onto North Main Street
45 m · 14 sec · North Main Street
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16
Arrive at your destination
0 m · 1 sec · North Main Street
Car Route Details
A richer read on the saved driving route between Tyndall and Spearfish.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
South Burr Street
Merge slight left
274 mi · 04h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Tyndall and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Tyndall to Spearfish?
The road trip is about 376.1 miles (605.2 km) and usually takes 05h 37m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Draper is a useful midpoint, sitting about 187.2 miles from Tyndall and 188.9 miles from Spearfish.
How much longer is the road route than the straight-line distance?
The direct path is about 316.6 miles (509.5 km), while the road route adds roughly 59.5 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $50.04 one way or $100.08 round trip. Estimated CO2 is about 117.9 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Tyndall and Spearfish, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Tyndall and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Flight Path Map
This map shows the direct air route between Tyndall and Spearfish. Straight-line distance: 316.61 mi (509.54 km).
#1 Tyndall
City in and county seat of Bon Homme County, South Dakota, United States
| Population | 1,015 |
| Coordinates | 42.9933300, -97.8628500 |
| Altitude | 433 |
| Country | United States |
#2 Spearfish
City in Lawrence County, South Dakota, United States
| Population | 11,900 |
| Coordinates | 44.4908200, -103.8593700 |
| Altitude | 1112 |
| Country | United States |
End: North Main Street (-103.859247, 44.49086)
Estimated Travel Time
Distance: 605 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 31m |
| 40 mph (64.37 km/h) | 09h 24m |
| 50 mph (80.47 km/h) | 07h 31m |
| 60 mph (96.56 km/h) | 06h 16m |
| 70 mph (112.65 km/h) | 05h 22m |
| 80 mph (129 km/h) | 04h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $50.04 | $100.08 |
| Mid-grade | $4.25 | $56.44 | $112.87 |
| Premium | $4.65 | $61.76 | $123.52 |
| Diesel | $5.30 | $70.38 | $140.77 |
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.