How far is Brighton, CO from Longmont, CO?
The driving distance from Brighton, CO to Longmont, CO is about 27.1 miles (43.6 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 19.4 miles (31.3 km).
- For a round trip, plan for roughly 01h 09m 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 34m.
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 Weld County, Colorado, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Slight Chance Rain Showers
Mostly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Brighton and Longmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brighton and Longmont.
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1
Start on Bush Street
126 m · 15 sec · Bush Street
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2
Turn right onto South Main Street
584 ft · 25 sec · South Main Street
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3
Turn left onto West Bridge Street
130 m · 9 sec · West Bridge Street
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4
Enter the roundabout and take exit 2 toward West Bridge Street
43 m · 2 sec · West Bridge Street
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5
Exit the roundabout onto West Bridge Street
81 m · 5 sec · West Bridge Street
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6
Enter the roundabout and take exit 2 toward West Bridge Street
45 m · 3 sec · West Bridge Street
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7
Exit the roundabout onto West Bridge Street
2254 ft · 54 sec · West Bridge Street
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8
Continue on East 160th Avenue
8.2 mi · 11 min · East 160th Avenue
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9
Take the ramp straight toward I 25 North: Fort Collins
2141 ft · 51 sec
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10
Merge slight left onto Dwight D. Eisenhower Highway
10.5 mi · 10 min · Dwight D. Eisenhower Highway
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11
Take the exit slight right toward CO 119 West: Firestone Boulevard
996 ft · 19 sec
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12
Keep slight left to continue on CO 119 West: Longmont
88 m · 8 sec
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13
Turn left onto Highway 119
3.1 mi · 4 min · Highway 119
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14
Continue on East Ken Pratt Boulevard
1.6 mi · 2 min · East Ken Pratt Boulevard
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15
Take the exit slight right
69 m · 7 sec
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16
Turn right onto East 3rd Avenue
1.9 mi · 4 min · East 3rd Avenue
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17
Turn right onto Kimbark Street
1084 ft · 55 sec · Kimbark Street
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18
Turn left
57 m · 16 sec
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19
Turn right
33 m · 8 sec
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20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Brighton and Longmont.
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.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
10.5 mi · 00h 11m
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 then Slight Chance Rain Showers leaving Brighton and Mostly Sunny then Slight Chance Rain Showers near Longmont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brighton to Longmont?
The road trip is about 27.1 miles (43.6 km) and usually takes 00h 34m 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?
Dacono is a useful midpoint, sitting about 13.5 miles from Brighton and 13.5 miles from Longmont.
How much longer is the road route than the straight-line distance?
The direct path is about 19.4 miles (31.3 km), while the road route adds roughly 7.7 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 7:20 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.55 one way or $7.10 round trip. Estimated CO2 is about 8.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Slight Chance Rain Showers around Brighton and Mostly Sunny then Slight Chance Rain Showers near Longmont.
Stop Ideas Near Dacono
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic Brighton City Hall
Broomfield City Council
Lafayette City Hall
Old Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Dacono.
Longmont, Colorado
Boulder, Colorado
Denver (Bus Station), Colorado
Union Station
Flight Path Map
This map shows the direct air route between Brighton and Longmont. Straight-line distance: 19.48 mi (31.35 km).
#1 Brighton
A city in Adams County, Colorado.
| Population | 40,783 |
| Coordinates | 39.9852600, -104.8205300 |
| Altitude | 1519 |
| Country | United States |
#2 Longmont
The most populous city in Boulder County, Colorado.
| Population | 98,445 |
| Coordinates | 40.1672100, -105.1019300 |
| Altitude | 1519 |
| Country | United States |
End: (-105.101861, 40.16721)
Estimated Travel Time
Distance: 44 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 54m |
| 40 mph (64.37 km/h) | 00h 40m |
| 50 mph (80.47 km/h) | 00h 32m |
| 60 mph (96.56 km/h) | 00h 27m |
| 70 mph (112.65 km/h) | 00h 23m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $3.55 | $7.10 |
| Mid-grade | $4.08 | $3.92 | $7.84 |
| Premium | $4.39 | $4.22 | $8.43 |
| Diesel | $4.74 | $4.55 | $9.10 |
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.