How far is Montrose, CO from Thornton, CO?
The driving distance from Montrose, CO to Thornton, CO is about 272.3 miles (438.3 km), with a travel time of about 04h 52m by car.
- The straight-line flight distance is about 182.8 miles (294.2 km).
- For a round trip, plan for roughly 09h 44m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 04h 52m.
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.
City in Colorado
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Montrose and Thornton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Montrose and Thornton.
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1
Start on South 1st Street
51 m · 13 sec · South 1st Street
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2
Turn left onto South Cascade Avenue
105 m · 17 sec · South Cascade Avenue
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3
Turn left onto East Main Street
127 m · 22 sec · East Main Street
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4
Turn right onto North Townsend Avenue
3.7 mi · 6 min · North Townsend Avenue
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5
Continue straight
17.1 mi · 21 min
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6
Turn left onto Confluence Drive
1.4 km · 2 min · Confluence Drive
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7
Turn left onto West 5th Street
1105 ft · 27 sec · West 5th Street
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8
Continue on G Road
1.6 mi · 3 min · G Road
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9
Continue on G Road
1.2 km · 1 min · G Road
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10
Continue on G50 Road
2.1 mi · 3 min · G50 Road
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11
At the end of the road, turn left
26.4 mi · 31 min
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12
Continue on 32 Road
5.5 mi · 9 min · 32 Road
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13
Turn right onto Grand Army of the Republic Highway
1.1 mi · 2 min · Grand Army of the Republic Highway
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14
Keep slight right to continue on I 70 East: Denver
233.3 mi · 4 hr 23 min
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15
Keep slight left to continue on Heartland Expressway
5.1 mi · 6 min · Heartland Expressway
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16
Take the exit slight right toward I 25: Fort Collins, Colorado Springs
1098 ft · 21 sec
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17
Keep slight left to continue on I 25 North: Fort Collins
1.4 mi · 3 min
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18
Merge slight left onto North Valley Highway
1.4 km · 1 min · North Valley Highway
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19
Keep slight right to continue on North Valley Highway
1.3 mi · 2 min · North Valley Highway
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20
Take the exit slight right toward Thornton Parkway
2280 ft · 43 sec
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21
Turn right onto Thornton Parkway
1.4 km · 2 min · Thornton Parkway
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22
Turn right onto Dorothy Boulevard
1077 ft · 51 sec · Dorothy Boulevard
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23
Turn right
36 m · 9 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Montrose and Thornton.
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 70 East
Keep slight right to continue on I 70 East: Denver
233 mi · 04h 23m
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 Montrose and Mostly Sunny near Thornton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Montrose to Thornton?
The road trip is about 272.3 miles (438.3 km) and usually takes 04h 52m 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?
Glenwood Springs is a useful midpoint, sitting about 151.5 miles from Montrose and 120.9 miles from Thornton.
How much longer is the road route than the straight-line distance?
The direct path is about 182.8 miles (294.2 km), while the road route adds roughly 89.5 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 MDT. If you want a more comfortable same-day return, try to leave by 7:16 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.54 one way or $71.08 round trip. Estimated CO2 is about 85.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Montrose and Mostly Sunny near Thornton.
Stop Ideas Near Glenwood Springs
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Glenwood Springs.
Glenwood Springs
Vail, Colorado
Frisco, Colorado
Gunnison-Downtown, CO
Flight Path Map
This map shows the direct air route between Montrose and Thornton. Straight-line distance: 182.79 mi (294.18 km).
#1 Montrose
Coastal resort town and former royal burgh in Angus, Scotland
| Population | 19,902 |
| Coordinates | 38.4783200, -107.8761700 |
| Altitude | 1770 |
| 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: 438 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 04m |
| 40 mph (64.37 km/h) | 06h 48m |
| 50 mph (80.47 km/h) | 05h 26m |
| 60 mph (96.56 km/h) | 04h 32m |
| 70 mph (112.65 km/h) | 03h 53m |
| 80 mph (129 km/h) | 03h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $35.54 | $71.08 |
| Mid-grade | $4.08 | $39.25 | $78.49 |
| Premium | $4.39 | $42.20 | $84.40 |
| Diesel | $4.74 | $45.52 | $91.05 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.