How far is Longmont, CO from Windsor, CO?

The driving distance from Longmont, CO to Windsor, CO is about 34 miles (54.7 km), with a travel time of about 00h 43m by car.

  • The straight-line flight distance is about 23.9 miles (38.5 km).
  • For a round trip, plan for roughly 01h 27m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
33.98 mi
00h 43m
Flight
23.9 mi
38.46 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Longmont.

Flight Distance

Direct air line
23.9 mi
Kilometers
38.46 km
Flight Time
00h 02m

Driving Distance

Road route
33.98 mi
Kilometers
54.69 km
Drive Time
00h 43m

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 43m.

Arrival Snapshot
Arrive in Windsor
Thu, Apr 23, 3:51 AM MDT
Return by in Longmont
Thu, Apr 23, 4:35 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Longmont
2026-04-23T03:08
Arrive Windsor
Thu, Apr 23, 3:51 AM MDT
Route Timing
00h 43m
One way by road
Best Departure Window
7:00 AM to 7:00 PM MDT
Leave when it suits your day
Arrive between
7:44 AM to 7:44 PM MDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:02 PM MDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Longmont
10:00 PM MDT
Flexible departure

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.

Mid-route stop
Johnstown
CO

Municipality in Colorado, USA

From Longmont
17 mi
00h 21m
To Windsor
17 mi
00h 21m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
68°F
Thursday

Mostly Sunny then Slight Chance Rain Showers

Starts
Thu, Apr 23 6:00 AM MDT
Wind
10 to 21 mph W
Destination
68°F
Thursday

Mostly Sunny then Slight Chance Rain Showers

Starts
Thu, Apr 23 6:00 AM MDT
Wind
14 to 26 mph WNW

Driving Route Map

The map below follows the saved road route between Longmont and Windsor.

Turn-by-Turn Driving Directions

Step-by-step road directions between Longmont and Windsor.

  1. 1

    Start on the route

    19 m · 7 sec

  2. 2

    Turn right onto 5th Avenue

    1025 ft · 47 sec · 5th Avenue

  3. 3

    Turn right onto Collyer Street

    1255 ft · 42 sec · Collyer Street

  4. 4

    Turn left onto 3rd Avenue

    1.8 mi · 3 min · 3rd Avenue

  5. 5

    Turn left onto East Ken Pratt Boulevard

    1.6 mi · 2 min · East Ken Pratt Boulevard

  6. 6

    Continue on Highway 119

    3.1 mi · 4 min · Highway 119

  7. 7

    Turn left onto I 25 North

    1400 ft · 34 sec

  8. 8

    Merge slight left onto Dwight D. Eisenhower Highway

    21.6 mi · 22 min · Dwight D. Eisenhower Highway

  9. 9

    Take the exit slight right toward CO 392: Windsor, Fort Collins

    1197 ft · 29 sec

  10. 10

    Turn right onto East County Road 32

    2.5 mi · 4 min · East County Road 32

  11. 11

    Continue on Highway 392

    2636 ft · 50 sec · Highway 392

  12. 12

    Continue on Main Street

    1.4 mi · 3 min · Main Street

  13. 13

    Turn right onto 7th Street

    112 m · 10 sec · 7th Street

  14. 14

    Turn slight left

    42 m · 9 sec

  15. 15

    Turn left onto Walnut Street

    1482 ft · 43 sec · Walnut Street

  16. 16

    Turn right onto 4th Street

    148 m · 27 sec · 4th Street

  17. 17

    Turn left onto Elm Street

    97 m · 14 sec · Elm Street

  18. 18

    Arrive at your destination

    0 m · 1 sec · Elm Street

Car Route Details

A richer read on the saved driving route between Longmont and Windsor.

OSRM road route
Drive Character

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.

Directions
18 steps
11 turns on the saved route
Ramps & Exits
2
1 merges, 1 ramps or exits
Navigation Density
52.9 / 100 mi
Decision points by distance
Main Roads
Dwight D. Eisenhower Highway
21.6 mi · 64%
Highway 119
3.13 mi · 9%
East County Road 32
2.47 mi · 7%
3rd Avenue
1.78 mi · 5%
East Ken Pratt Boulevard
1.6 mi · 5%
Main Street
1.42 mi · 4%
Longest Stretch

Dwight D. Eisenhower Highway

Merge slight left onto Dwight D. Eisenhower Highway

21.6 mi · 00h 22m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 43m
Quick drive
Same-Day Return
01h 28m
Round-trip wheel time
Road vs Air
+10.1 mi
23.9 mi direct line
Halfway Stop
Johnstown
00h 21m from Longmont
Leave By
7:02 PM MDT
Flexible departure
Weather Watch

Mostly Sunny then Slight Chance Rain Showers leaving Longmont and Mostly Sunny then Slight Chance Rain Showers near Windsor.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Longmont to Windsor?

The road trip is about 34 miles (54.7 km) and usually takes 00h 43m 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?

Johnstown is a useful midpoint, sitting about 17 miles from Longmont and 17 miles from Windsor.

How much longer is the road route than the straight-line distance?

The direct path is about 23.9 miles (38.5 km), while the road route adds roughly 10.1 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 7:02 PM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $4.44 one way or $8.88 round trip. Estimated CO2 is about 10.7 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Longmont and Mostly Sunny then Slight Chance Rain Showers near Windsor.

Stop Ideas Near Johnstown

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Johnstown and the surrounding midpoint area.
Old Town Hall
Scenic stop 14.5 mi away

Old Town Hall

Frederick , CO
105 Fifth St, Frederick, CO 80530
Rating 4.0/5 2 reviews Historical landmark,History museum
Town of Frederick
Meeting point 14.5 mi away

Town of Frederick

Frederick , CO
401 Locust St, Frederick, CO 80530
Rating 3.8/5 12 reviews City government office,City Hall

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Johnstown.

BUS

Longmont, Colorado

25 mi away
623 Main St.
BUS

Fort Collins, Colorado

30 mi away
250 North Mason St.
BUS

Boulder, Colorado

44 mi away
30th & Diagonal Highway
RAIL

Union Station

65 mi away
1701 Wynkoop Street

Flight Path Map

This map shows the direct air route between Longmont and Windsor. Straight-line distance: 23.9 mi (38.46 km).

Longmont

#1 Longmont

The most populous city in Boulder County, Colorado.

Population98,445
Coordinates40.1672100, -105.1019300
Altitude1519
CountryUnited States
Windsor

#2 Windsor

Municipality in Colorado

Population27,659
Coordinates40.4774800, -104.9013600
Altitude1462
CountryUnited States
Start: Longmont (-105.10193, 40.16721)
End: Windsor (-104.90136, 40.47748)

Estimated Travel Time

Distance: 55 km by road

SpeedTime
30 mph (48.3 km/h)01h 07m
40 mph (64.37 km/h)00h 50m
50 mph (80.47 km/h)00h 40m
60 mph (96.56 km/h)00h 33m
70 mph (112.65 km/h)00h 29m
80 mph (129 km/h)00h 25m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.2 gal
4.54 L · about $4.44
Round trip
$8.88
2.4 gal · 9.08 L
Estimated CO2
10.7 kg one way
Round trip: 21.3 kg / 47 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.70 $4.44 $8.88
Mid-grade $4.08 $4.90 $9.80
Premium $4.39 $5.27 $10.54
Diesel $4.74 $5.68 $11.37

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

There is no time difference between Longmont and Windsor. The current time is 03:08:07.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.