How far is Alamosa, CO from Fort Collins, CO?
The driving distance from Alamosa, CO to Fort Collins, CO is about 279.1 miles (449.1 km), with a travel time of about 04h 41m by car.
- The straight-line flight distance is about 219.3 miles (353 km).
- For a round trip, plan for roughly 09h 23m 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 41m.
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, 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 Alamosa and Fort Collins.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alamosa and Fort Collins.
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1
Start on Ross Avenue
20 m · 7 sec · Ross Avenue
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2
Turn left onto Fourth Street
2320 ft · 1 min · Fourth Street
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3
At the end of the road, turn left onto Denver Avenue
159 m · 18 sec · Denver Avenue
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4
Continue on Broadway Avenue
1420 ft · 41 sec · Broadway Avenue
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5
Continue on Santa Fe Avenue
71.4 mi · 1 hr 28 min · Santa Fe Avenue
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6
Turn left onto Main Street
1938 ft · 44 sec · Main Street
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7
Continue on Main Street
64 m · 4 sec · Main Street
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8
Continue on Walsen Avenue
1.1 km · 1 min · Walsen Avenue
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9
Continue on US Highway 85/87
1.6 mi · 2 min · US Highway 85/87
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10
Take the ramp straight toward I 25 North: Pueblo
86.9 mi · 1 hr 31 min
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11
Continue on Monument Valley Freeway
8.5 mi · 10 min · Monument Valley Freeway
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12
Continue on Ronald Reagan Highway
70.1 mi · 1 hr 18 min · Ronald Reagan Highway
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13
Keep slight right to continue on North Valley Highway
4.3 mi · 6 min · North Valley Highway
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14
Keep slight right to continue on North Valley Highway
5.3 mi · 6 min · North Valley Highway
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15
Continue on Dwight D. Eisenhower Highway
41.7 mi · 42 min · Dwight D. Eisenhower Highway
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16
Take the exit slight right toward CO 14 West: Fort Collins
976 ft · 23 sec
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17
Merge slight left onto East Mulberry Street
4 mi · 7 min · East Mulberry Street
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18
Continue on West Mulberry Street
1543 ft · 45 sec · West Mulberry Street
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19
Turn right onto South Meldrum Street
152 m · 29 sec · South Meldrum Street
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20
Turn left onto West Magnolia Street
145 m · 18 sec · West Magnolia Street
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21
Continue on South Sherwood Street
841 ft · 39 sec · South Sherwood Street
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22
Arrive at your destination
0 m · 1 sec · South Sherwood Street
Car Route Details
A richer read on the saved driving route between Alamosa and Fort Collins.
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 25 North
Take the ramp straight toward I 25 North: Pueblo
86.9 mi · 01h 31m
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.
Sunny leaving Alamosa and Sunny near Fort Collins.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alamosa to Fort Collins?
The road trip is about 279.1 miles (449.1 km) and usually takes 04h 41m 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?
Fountain is a useful midpoint, sitting about 148.4 miles from Alamosa and 130.7 miles from Fort Collins.
How much longer is the road route than the straight-line distance?
The direct path is about 219.3 miles (353 km), while the road route adds roughly 59.8 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 7:36 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.43 one way or $72.85 round trip. Estimated CO2 is about 87.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Alamosa and Sunny near Fort Collins.
Stop Ideas Near Fountain
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 Fountain.
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Flight Path Map
This map shows the direct air route between Alamosa and Fort Collins. Straight-line distance: 219.37 mi (353.04 km).
#1 Alamosa
City in Colorado, USA
| Population | 9,367 |
| Coordinates | 37.4694500, -105.8700200 |
| Altitude | 2299 |
| Country | United States |
#2 Fort Collins
The fifth most populous city in Colorado.
| Population | 168,234 |
| Coordinates | 40.5852600, -105.0844200 |
| Altitude | 1525 |
| Country | United States |
End: South Sherwood Street (-105.08428, 40.58526)
Estimated Travel Time
Distance: 449 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 17m |
| 40 mph (64.37 km/h) | 06h 58m |
| 50 mph (80.47 km/h) | 05h 34m |
| 60 mph (96.56 km/h) | 04h 39m |
| 70 mph (112.65 km/h) | 03h 59m |
| 80 mph (129 km/h) | 03h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $36.43 | $72.85 |
| Mid-grade | $4.08 | $40.23 | $80.45 |
| Premium | $4.39 | $43.25 | $86.50 |
| Diesel | $4.74 | $46.66 | $93.32 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.