How far is Thornton, CO from Westminster, CO?
The driving distance from Thornton, CO to Westminster, CO is about 5.8 miles (9.4 km), with a travel time of about 00h 15m by car.
- The straight-line flight distance is about 4.1 miles (6.6 km).
- For a round trip, plan for roughly 00h 30m 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 15m.
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.
City in Adams County, Colorado, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Thornton and Westminster.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thornton and Westminster.
-
1
Start on the route
23 m · 12 sec
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2
Turn left onto Dorothy Boulevard
1165 ft · 59 sec · Dorothy Boulevard
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3
At the end of the road, turn left onto Thornton Parkway
2 mi · 4 min · Thornton Parkway
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4
Continue on West 92nd Avenue
1 mi · 2 min · West 92nd Avenue
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5
Turn left onto Federal Boulevard
1.5 mi · 3 min · Federal Boulevard
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6
Turn right onto West 80th Avenue
2633 ft · 1 min · West 80th Avenue
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7
Turn left onto Lowell Boulevard
1996 ft · 44 sec · Lowell Boulevard
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8
Turn right onto West 77th Avenue
873 ft · 42 sec · West 77th Avenue
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9
Turn right onto Newton Street
35 m · 5 sec · Newton Street
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10
Arrive at your destination
0 m · 1 sec · Newton Street
Car Route Details
A richer read on the saved driving route between Thornton and Westminster.
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.
Thornton Parkway
At the end of the road, turn left onto Thornton Parkway
2.03 mi · 00h 04m
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.
Sunny leaving Thornton and Mostly Sunny near Westminster.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thornton to Westminster?
The road trip is about 5.8 miles (9.4 km) and usually takes 00h 15m 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?
Federal Heights is a useful midpoint, sitting about 2.9 miles from Thornton and 2.9 miles from Westminster.
How much longer is the road route than the straight-line distance?
The direct path is about 4.1 miles (6.6 km), while the road route adds roughly 1.7 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 8:00 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $0.78 one way or $1.55 round trip. Estimated CO2 is about 1.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Thornton and Mostly Sunny near Westminster.
Stop Ideas Near Federal Heights
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Fairplay Park
Denver City Council
Lafayette City Hall
Municipal Court Park
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Federal Heights.
Denver (Bus Station), Colorado
Union Station
Boulder, Colorado
Longmont, Colorado
Flight Path Map
This map shows the direct air route between Thornton and Westminster. Straight-line distance: 4.09 mi (6.58 km).
#1 Thornton
The seventh most populous city in Colorado.
| Population | 148,113 |
| Coordinates | 39.8680400, -104.9719200 |
| Altitude | 1631 |
| Country | United States |
#2 Westminster
The most populous city in Adams County, Colorado.
| Population | 115,046 |
| Coordinates | 39.8366500, -105.0372000 |
| Altitude | 1641 |
| Country | United States |
End: Newton Street (-105.037386, 39.836648)
Estimated Travel Time
Distance: 9 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 11m |
| 40 mph (64.37 km/h) | 00h 08m |
| 50 mph (80.47 km/h) | 00h 07m |
| 60 mph (96.56 km/h) | 00h 05m |
| 70 mph (112.65 km/h) | 00h 05m |
| 80 mph (129 km/h) | 00h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $0.78 | $1.55 |
| Mid-grade | $4.08 | $0.86 | $1.72 |
| Premium | $4.39 | $0.92 | $1.84 |
| Diesel | $4.74 | $0.99 | $1.99 |
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.