How far is Castle Rock, CO from Montrose, CO?
The driving distance from Castle Rock, CO to Montrose, CO is about 273 miles (439.4 km), with a travel time of about 06h 13m by car.
- The straight-line flight distance is about 173.7 miles (279.5 km).
- For a round trip, plan for roughly 12h 26m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 13m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Castle Rock and Montrose.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Montrose.
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1
Start on North Cantril Street
27 m · 8 sec · North Cantril Street
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2
Turn left onto 3rd Street
641 ft · 23 sec · 3rd Street
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3
Exit the roundabout onto 3rd Street
135 m · 21 sec · 3rd Street
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4
Turn left onto North Wilcox Street
1119 ft · 38 sec · North Wilcox Street
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5
Enter the roundabout and take exit 2 toward South Wilcox Street
12 m · 1 sec · South Wilcox Street
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6
Exit the roundabout onto South Wilcox Street
1432 ft · 53 sec · South Wilcox Street
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7
Turn right onto West Plum Creek Parkway
981 ft · 35 sec · West Plum Creek Parkway
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8
Turn left onto Frontage Road
860 ft · 29 sec · Frontage Road
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9
Take the ramp left toward I 25 South
1440 ft · 37 sec
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10
Merge slight left
32.4 mi · 33 min
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11
Continue on Monument Valley Freeway
3.3 mi · 4 min · Monument Valley Freeway
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12
Take the exit slight right toward Fillmore Street
692 ft · 17 sec
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13
Keep slight right to continue on Fillmore Street West
71 m · 8 sec
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14
Continue on West Fillmore Street
1.4 mi · 3 min · West Fillmore Street
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15
Continue on Fontmore Road
1 km · 1 min · Fontmore Road
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16
Continue on West Fontanero Street
1403 ft · 34 sec · West Fontanero Street
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17
Turn left onto North 31st Street
1.1 km · 2 min · North 31st Street
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18
Turn sharp right onto West Cimarron Street
927 ft · 20 sec · West Cimarron Street
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19
Continue on Midland Expressway
15.7 mi · 24 min · Midland Expressway
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20
Keep slight right
45.3 mi · 55 min
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21
Continue straight
12.7 mi · 14 min
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22
At the end of the road, turn left
13.7 mi · 18 min
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23
At the end of the road, turn left
11.1 mi · 18 min
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24
Continue straight
9.9 mi · 16 min
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25
Turn sharp right
123.2 mi · 2 hr 57 min
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26
Turn left onto South San Juan Avenue
762 ft · 23 sec · South San Juan Avenue
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27
Turn right onto South 2nd Street
1.2 km · 2 min · South 2nd Street
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28
Turn right onto South Townsend Avenue
96 m · 9 sec · South Townsend Avenue
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29
Turn right onto South 1st Street
70 m · 10 sec · South 1st Street
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30
Arrive at your destination
0 m · 1 sec · South 1st Street
Car Route Details
A richer read on the saved driving route between Castle Rock and Montrose.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn sharp right
123 mi · 02h 57m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Castle Rock and Sunny near Montrose.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Montrose?
The road trip is about 273 miles (439.4 km) and usually takes 06h 13m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Buena Vista is a useful midpoint, sitting about 136.4 miles from Castle Rock and 136.6 miles from Montrose.
How much longer is the road route than the straight-line distance?
The direct path is about 173.7 miles (279.5 km), while the road route adds roughly 99.3 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.61 one way or $71.22 round trip. Estimated CO2 is about 85.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Castle Rock and Sunny near Montrose.
Stop Ideas Near Buena Vista
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 Buena Vista.
Buena Vista, CO
Poncha Springs, CO
Salida, CO
Fairplay, CO
Flight Path Map
This map shows the direct air route between Castle Rock and Montrose. Straight-line distance: 173.68 mi (279.51 km).
#1 Castle Rock
The most populous city in Douglas County, Colorado.
| Population | 70,567 |
| Coordinates | 39.3722100, -104.8560900 |
| Altitude | 1897 |
| Country | United States |
#2 Montrose
Coastal resort town and former royal burgh in Angus, Scotland
| Population | 19,902 |
| Coordinates | 38.4783200, -107.8761700 |
| Altitude | 1770 |
| Country | United States |
End: Montrose (-107.87617, 38.47832)
Estimated Travel Time
Distance: 439 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 05m |
| 40 mph (64.37 km/h) | 06h 49m |
| 50 mph (80.47 km/h) | 05h 27m |
| 60 mph (96.56 km/h) | 04h 33m |
| 70 mph (112.65 km/h) | 03h 54m |
| 80 mph (129 km/h) | 03h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $35.61 | $71.22 |
| Mid-grade | $4.08 | $39.33 | $78.66 |
| Premium | $4.39 | $42.29 | $84.57 |
| Diesel | $4.74 | $45.62 | $91.23 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.