How far is Avon, CO from Longmont, CO?
The driving distance from Avon, CO to Longmont, CO is about 139.4 miles (224.4 km), with a travel time of about 02h 20m by car.
- The straight-line flight distance is about 83.9 miles (135 km).
- For a round trip, plan for roughly 04h 40m 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 20m.
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.
Statutory Town in Clear Creek County, Colorado, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Snow Showers
Mostly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Avon and Longmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Avon and Longmont.
-
1
Start on Avon Road
1001 ft · 20 sec · Avon Road
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2
Enter the roundabout and take exit 2 toward Avon Road
30 m · 2 sec · Avon Road
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3
Exit the roundabout onto Avon Road
80 m · 5 sec · Avon Road
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4
Enter the roundabout and take exit 2 toward Avon Road
52 m · 3 sec · Avon Road
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5
Exit the roundabout onto Avon Road
102 m · 7 sec · Avon Road
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6
Take the ramp slight right
1511 ft · 37 sec
-
7
Merge slight left onto Gerald R. Ford Memorial Highway
102.1 mi · 2 hr 2 min · Gerald R. Ford Memorial Highway
-
8
Keep slight left to continue on Heartland Expressway
1.3 mi · 2 min · Heartland Expressway
-
9
Take the exit slight right toward CO 95: Sheridan Boulevard
1606 ft · 40 sec
-
10
Turn left onto Sheridan Boulevard
4.6 mi · 8 min · Sheridan Boulevard
-
11
Turn left onto US 36 West: Boulder
1765 ft · 37 sec
-
12
Keep slight left to continue on US 36 West
876 ft · 23 sec
-
13
Merge slight left onto Denver–Boulder Turnpike
1.5 km · 1 min · Denver–Boulder Turnpike
-
14
Keep slight right to continue on Denver–Boulder Turnpike
1.9 mi · 2 min · Denver–Boulder Turnpike
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15
Keep slight right to continue on Denver–Boulder Turnpike
1.2 km · 52 sec · Denver–Boulder Turnpike
-
16
Take the exit slight right toward CO 121: Wadsworth Parkway
1951 ft · 42 sec
-
17
Turn right
1257 ft · 30 sec
-
18
Continue straight
5.7 mi · 8 min
-
19
Continue straight
1106 ft · 19 sec
-
20
Continue straight
11.5 mi · 16 min
-
21
Turn right onto 5th Avenue
109 m · 20 sec · 5th Avenue
-
22
Turn right onto Kimbark Street
52 m · 9 sec · Kimbark Street
-
23
Turn right
57 m · 16 sec
-
24
Turn right
33 m · 8 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Avon and Longmont.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Gerald R. Ford Memorial Highway
Merge slight left onto Gerald R. Ford Memorial Highway
102 mi · 02h 02m
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.
Chance Snow Showers leaving Avon 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 Avon to Longmont?
The road trip is about 139.4 miles (224.4 km) and usually takes 02h 20m 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?
Empire is a useful midpoint, sitting about 65.5 miles from Avon and 73.9 miles from Longmont.
How much longer is the road route than the straight-line distance?
The direct path is about 83.9 miles (135 km), while the road route adds roughly 55.5 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 1:50 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.19 one way or $36.39 round trip. Estimated CO2 is about 43.7 kg one way.
What should you check before leaving?
Before you leave, expect Chance Snow Showers around Avon and Mostly Sunny then Slight Chance Rain Showers near Longmont.
Stop Ideas Near Empire
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 Empire.
Fraser – Winter Park
Frisco, Colorado
Pine Junction, CO
Granby
Flight Path Map
This map shows the direct air route between Avon and Longmont. Straight-line distance: 83.9 mi (135.02 km).
#1 Avon
Home Rule Municipality that is a town in Eagle County, Colorado, United States
| Population | 6,952 |
| Coordinates | 39.6313700, -106.5222500 |
| Altitude | 2265 |
| 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: 224 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 38m |
| 40 mph (64.37 km/h) | 03h 29m |
| 50 mph (80.47 km/h) | 02h 47m |
| 60 mph (96.56 km/h) | 02h 19m |
| 70 mph (112.65 km/h) | 01h 59m |
| 80 mph (129 km/h) | 01h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $18.19 | $36.39 |
| Mid-grade | $4.08 | $20.09 | $40.19 |
| Premium | $4.39 | $21.60 | $43.21 |
| Diesel | $4.74 | $23.31 | $46.61 |
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.