How far is Longmont, CO from Fountain, CO?
The driving distance from Longmont, CO to Fountain, CO is about 120 miles (193.1 km), with a travel time of about 02h 17m by car.
- The straight-line flight distance is about 104.8 miles (168.7 km).
- For a round trip, plan for roughly 04h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 17m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Douglas County, Colorado, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Rain Showers
Sunny
Driving Route Map
The map below follows the saved road route between Longmont and Fountain.
Turn-by-Turn Driving Directions
Step-by-step road directions between Longmont and Fountain.
-
1
Start on the route
19 m · 7 sec
-
2
Turn right onto 5th Avenue
1025 ft · 47 sec · 5th Avenue
-
3
Turn right onto Collyer Street
1255 ft · 42 sec · Collyer Street
-
4
Turn left onto 3rd Avenue
1.8 mi · 3 min · 3rd Avenue
-
5
Turn left onto East Ken Pratt Boulevard
1.6 mi · 2 min · East Ken Pratt Boulevard
-
6
Continue on Highway 119
3 mi · 4 min · Highway 119
-
7
Take the exit right toward I 25 South
2690 ft · 1 min · West I 25 Frontage Road
-
8
Merge slight left onto Dwight D. Eisenhower Highway
11.9 mi · 12 min · Dwight D. Eisenhower Highway
-
9
Continue on North Valley Highway
3187 ft · 36 sec · North Valley Highway
-
10
Keep slight right to continue on North Valley Highway
8.8 mi · 11 min · North Valley Highway
-
11
Keep slight right to continue on North Valley Highway
70.1 mi · 1 hr 18 min · North Valley Highway
-
12
Continue on Monument Valley Freeway
8.8 mi · 10 min · Monument Valley Freeway
-
13
Continue on Ronald Reagan Highway
915 ft · 12 sec · Ronald Reagan Highway
-
14
Keep slight left to continue on Ronald Reagan Highway
11.1 mi · 12 min · Ronald Reagan Highway
-
15
Take the exit slight right toward US 85 North: Fountain
1042 ft · 20 sec
-
16
Keep slight left to continue on US 85 North: Fountain
61 m · 11 sec
-
17
Turn left onto Santa Fe Avenue
3010 ft · 1 min · Santa Fe Avenue
-
18
Turn right onto West Indiana Avenue
1035 ft · 24 sec · West Indiana Avenue
-
19
At the end of the road, turn left onto South Main Street
1001 ft · 20 sec · South Main Street
-
20
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Longmont and Fountain.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North Valley Highway
Keep slight right to continue on North Valley Highway
70.1 mi · 01h 18m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny then Slight Chance Rain Showers leaving Longmont and Sunny near Fountain.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Longmont to Fountain?
The road trip is about 120 miles (193.1 km) and usually takes 02h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Castle Pines is a useful midpoint, sitting about 60 miles from Longmont and 60 miles from Fountain.
How much longer is the road route than the straight-line distance?
The direct path is about 104.8 miles (168.7 km), while the road route adds roughly 15.2 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 1:56 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.64 one way or $31.29 round trip. Estimated CO2 is about 37.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Longmont and Sunny near Fountain.
Stop Ideas Near Castle Pines
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Littleton
Greenwood Village City Hall
Town Hall Arts Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Castle Pines.
Denver (Bus Station), Colorado
Union Station
Pine Junction, CO
Colorado Springs, Colorado
Flight Path Map
This map shows the direct air route between Longmont and Fountain. Straight-line distance: 104.81 mi (168.68 km).
#1 Longmont
The most populous city in Boulder County, Colorado.
| Population | 98,445 |
| Coordinates | 40.1672100, -105.1019300 |
| Altitude | 1519 |
| Country | United States |
#2 Fountain
City in Colorado, United States
| Population | 31,017 |
| Coordinates | 38.6822200, -104.7008100 |
| Altitude | 1690 |
| Country | United States |
End: Fountain (-104.70081, 38.68222)
Estimated Travel Time
Distance: 193 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 59m |
| 40 mph (64.37 km/h) | 02h 59m |
| 50 mph (80.47 km/h) | 02h 23m |
| 60 mph (96.56 km/h) | 01h 59m |
| 70 mph (112.65 km/h) | 01h 42m |
| 80 mph (129 km/h) | 01h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $15.64 | $31.29 |
| Mid-grade | $4.08 | $17.28 | $34.55 |
| Premium | $4.39 | $18.57 | $37.15 |
| Diesel | $4.74 | $20.04 | $40.08 |
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.