How far is Golden, CO from Thornton, CO?
The driving distance from Golden, CO to Thornton, CO is about 19.1 miles (30.7 km), with a travel time of about 00h 23m by car.
- The straight-line flight distance is about 15.3 miles (24.7 km).
- For a round trip, plan for roughly 00h 47m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 23m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Jefferson County, Colorado, United States
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 Golden and Thornton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Golden and Thornton.
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1
Start on 12th Street
26 m · 6 sec · 12th Street
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2
Turn right onto Washington Avenue
2047 ft · 1 min · Washington Avenue
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3
Turn right onto CO 58 East
19 m · 3 sec
-
4
Take the ramp straight toward CO 58 East
144 m · 12 sec
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5
Merge slight left onto Golden Freeway
4.2 mi · 5 min · Golden Freeway
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6
Keep slight left to continue on I 70 East: Denver
3186 ft · 1 min
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7
Merge slight left
3.3 mi · 4 min
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8
Keep slight left to continue on Heartland Expressway
5.1 mi · 6 min · Heartland Expressway
-
9
Take the exit slight right toward I 25: Fort Collins, Colorado Springs
1098 ft · 21 sec
-
10
Keep slight left to continue on I 25 North: Fort Collins
1.4 mi · 3 min
-
11
Merge slight left onto North Valley Highway
1.4 km · 1 min · North Valley Highway
-
12
Keep slight right to continue on North Valley Highway
1.3 mi · 2 min · North Valley Highway
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13
Take the exit slight right toward Thornton Parkway
2280 ft · 43 sec
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14
Turn right onto Thornton Parkway
1.4 km · 2 min · Thornton Parkway
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15
Turn right onto Dorothy Boulevard
1077 ft · 51 sec · Dorothy Boulevard
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16
Turn right
36 m · 9 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Golden and Thornton.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Heartland Expressway
Keep slight left to continue on Heartland Expressway
5.09 mi · 00h 06m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Golden and Sunny near Thornton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Golden to Thornton?
The road trip is about 19.1 miles (30.7 km) and usually takes 00h 23m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Lakeside is a useful midpoint, sitting about 9.5 miles from Golden and 9.5 miles from Thornton.
How much longer is the road route than the straight-line distance?
The direct path is about 15.3 miles (24.7 km), while the road route adds roughly 3.8 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:42 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.48 one way or $4.96 round trip. Estimated CO2 is about 6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Golden and Sunny near Thornton.
Stop Ideas Near Lakeside
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Fairplay Park
Denver City Council
Town Hall Arts Center
Municipal Court Park
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lakeside.
Union Station
Denver (Bus Station), Colorado
Boulder, Colorado
Longmont, Colorado
Flight Path Map
This map shows the direct air route between Golden and Thornton. Straight-line distance: 15.34 mi (24.69 km).
#1 Golden
County seat of Jefferson County, Colorado, United States
| Population | 20,347 |
| Coordinates | 39.7555400, -105.2211000 |
| Altitude | 1730 |
| Country | United States |
#2 Thornton
The seventh most populous city in Colorado.
| Population | 148,113 |
| Coordinates | 39.8680400, -104.9719200 |
| Altitude | 1631 |
| Country | United States |
End: (-104.971859, 39.868064)
Estimated Travel Time
Distance: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 38m |
| 40 mph (64.37 km/h) | 00h 28m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 19m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $2.48 | $4.96 |
| Mid-grade | $4.08 | $2.74 | $5.47 |
| Premium | $4.39 | $2.94 | $5.88 |
| Diesel | $4.74 | $3.17 | $6.35 |
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 Colorado · 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.