How far is Glenwood Springs, CO from Longmont, CO?

The driving distance from Glenwood Springs, CO to Longmont, CO is about 190.3 miles (306.2 km), with a travel time of about 03h 14m by car.

  • The straight-line flight distance is about 125.3 miles (201.7 km).
  • For a round trip, plan for roughly 06h 28m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
190.26 mi
03h 14m
Flight
125.36 mi
201.74 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Glenwood Springs.

Flight Distance

Direct air line
125.36 mi
Kilometers
201.74 km
Flight Time
00h 15m

Driving Distance

Road route
190.26 mi
Kilometers
306.19 km
Drive Time
03h 14m

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 03h 14m.

Arrival Snapshot
Arrive in Longmont
Sun, Apr 19, 5:41 AM MDT
Return by in Glenwood Springs
Sun, Apr 19, 8:55 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Glenwood Springs
2026-04-19T02:27
Arrive Longmont
Sun, Apr 19, 5:41 AM MDT
Route Timing
03h 14m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
9:14 AM to 11:14 AM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
10:32 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Glenwood Springs
9:00 PM MDT
Early departure recommended

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
Dillon
CO

Town in Colorado, USA

From Glenwood Springs
90.9 mi
01h 37m
To Longmont
99.4 mi
01h 37m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
58°F
Sunday

Sunny

Starts
Sun, Apr 19 6:00 AM MDT
Wind
5 to 10 mph S
Destination
71°F
Sunday

Sunny

Starts
Sun, Apr 19 6:00 AM MDT
Wind
2 to 7 mph SSW

Driving Route Map

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

Turn-by-Turn Driving Directions

Step-by-step road directions between Glenwood Springs and Longmont.

  1. 1

    Start on Pine Street

    37 m · 9 sec · Pine Street

  2. 2

    Turn right onto West 6th Street

    581 ft · 21 sec · West 6th Street

  3. 3

    Enter the roundabout and take exit 3 toward Laurel Street

    44 m · 3 sec · Laurel Street

  4. 4

    Exit the roundabout onto Laurel Street

    136 m · 24 sec · Laurel Street

  5. 5

    Take the exit left

    824 ft · 20 sec

  6. 6

    Merge slight left

    153.2 mi · 2 hr 57 min

  7. 7

    Keep slight left to continue on Heartland Expressway

    1.3 mi · 2 min · Heartland Expressway

  8. 8

    Take the exit slight right toward CO 95: Sheridan Boulevard

    1606 ft · 40 sec

  9. 9

    Turn left onto Sheridan Boulevard

    4.6 mi · 8 min · Sheridan Boulevard

  10. 10

    Turn left onto US 36 West: Boulder

    1765 ft · 37 sec

  11. 11

    Keep slight left to continue on US 36 West

    876 ft · 23 sec

  12. 12

    Merge slight left onto Denver–Boulder Turnpike

    1.5 km · 1 min · Denver–Boulder Turnpike

  13. 13

    Keep slight right to continue on Denver–Boulder Turnpike

    1.9 mi · 2 min · Denver–Boulder Turnpike

  14. 14

    Keep slight right to continue on Denver–Boulder Turnpike

    1.2 km · 52 sec · Denver–Boulder Turnpike

  15. 15

    Take the exit slight right toward CO 121: Wadsworth Parkway

    1951 ft · 42 sec

  16. 16

    Turn right

    1257 ft · 30 sec

  17. 17

    Continue straight

    5.7 mi · 8 min

  18. 18

    Continue straight

    1106 ft · 19 sec

  19. 19

    Continue straight

    11.5 mi · 16 min

  20. 20

    Turn right onto 5th Avenue

    109 m · 20 sec · 5th Avenue

  21. 21

    Turn right onto Kimbark Street

    52 m · 9 sec · Kimbark Street

  22. 22

    Turn right

    57 m · 16 sec

  23. 23

    Turn right

    33 m · 8 sec

  24. 24

    Arrive at your destination

    0 m · 1 sec

Car Route Details

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

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
24 steps
13 turns on the saved route
Ramps & Exits
7
2 merges, 5 ramps or exits
Navigation Density
12.6 / 100 mi
Decision points by distance
Main Roads
Laurel Street
153 mi · 81%
CO 121
17.7 mi · 9%
Sheridan Boulevard
4.56 mi · 2%
Denver–Boulder Turnpike
3.57 mi · 2%
Heartland Expressway
1.32 mi · 1%
US 36 West
0.5 mi
Longest Stretch

Laurel Street

Merge slight left

153 mi · 02h 57m

Route Summary

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

Trip Read

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.

Drive Time
03h 14m
Long day trip
Same-Day Return
06h 28m
Round-trip wheel time
Road vs Air
+65 mi
125.3 mi direct line
Halfway Stop
Dillon
01h 37m from Glenwood Springs
Leave By
10:32 AM MDT
Early departure recommended
Weather Watch

Sunny leaving Glenwood Springs and Sunny near Longmont.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Glenwood Springs to Longmont?

The road trip is about 190.3 miles (306.2 km) and usually takes 03h 14m 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?

Dillon is a useful midpoint, sitting about 90.9 miles from Glenwood Springs and 99.4 miles from Longmont.

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

The direct path is about 125.3 miles (201.7 km), while the road route adds roughly 65 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 10:32 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $24.81 one way or $49.63 round trip. Estimated CO2 is about 59.6 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Glenwood Springs and Sunny near Longmont.

Stop Ideas Near Dillon

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

Mid-route Guidance
Local place coverage is thin around Dillon, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

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

BUS

Frisco, Colorado

7 mi away
1010 Meadow Drive
BUS

Vail, Colorado

26 mi away
241 South Frontage Road East
RAIL

Fraser – Winter Park

40 mi away
205 Fraser Avenue
BUS

Fairplay, CO

45 mi away
620 US Highway 285

Flight Path Map

This map shows the direct air route between Glenwood Springs and Longmont. Straight-line distance: 125.36 mi (201.74 km).

Glenwood Springs

#1 Glenwood Springs

City in Colorado

Population10,222
Coordinates39.5505400, -107.3247800
Altitude1756
CountryUnited States
Longmont

#2 Longmont

The most populous city in Boulder County, Colorado.

Population98,445
Coordinates40.1672100, -105.1019300
Altitude1519
CountryUnited States
Start: Pine Street (-107.32494, 39.550544)
End: (-105.101861, 40.16721)

Estimated Travel Time

Distance: 306 km by road

SpeedTime
30 mph (48.3 km/h)06h 20m
40 mph (64.37 km/h)04h 45m
50 mph (80.47 km/h)03h 48m
60 mph (96.56 km/h)03h 10m
70 mph (112.65 km/h)02h 43m
80 mph (129 km/h)02h 22m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
6.71 gal
25.41 L · about $24.81
Round trip
$49.63
13.42 gal · 50.82 L
Estimated CO2
59.6 kg one way
Round trip: 119.3 kg / 263 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.70 $24.81 $49.63
Mid-grade $4.08 $27.40 $54.81
Premium $4.39 $29.46 $58.93
Diesel $4.74 $31.79 $63.57

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

There is no time difference between Glenwood Springs and Longmont. The current time is 02:27:30.

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.