How far is Sycamore, IL from Somonauk, IL?

The driving distance from Sycamore, IL to Somonauk, IL is about 31.3 miles (50.4 km), with a travel time of about 00h 51m by car.

  • The straight-line flight distance is about 24.5 miles (39.5 km).
  • For a round trip, plan for roughly 01h 42m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
31.3 mi
00h 51m
Flight
24.55 mi
39.51 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Sycamore.

Flight Distance

Direct air line
24.55 mi
Kilometers
39.51 km
Flight Time
00h 02m

Driving Distance

Road route
31.3 mi
Kilometers
50.38 km
Drive Time
00h 51m

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 51m.

Arrival Snapshot
Arrive in Somonauk
Wed, Nov 4, 7:23 AM CST
Return by in Sycamore
Wed, Nov 4, 8:14 AM CST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Sycamore
2026-11-04T06:32
Arrive Somonauk
Wed, Nov 4, 7:23 AM CST
Route Timing
00h 51m
One way by road
Best Departure Window
8:00 AM to 10:00 AM CST
Aim for a morning departure
Arrive between
8:51 AM to 10:51 AM CST

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
4:48 PM CST
Keeps a same-day return open with about 03h 00m at the destination.
Back in Sycamore
9:30 PM CST
Morning start is best

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
Waterman
IL

Human settlement in Illinois, United States of America

From Sycamore
15.7 mi
00h 25m
To Somonauk
15.7 mi
00h 25m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
57°F
Overnight

Rain Showers Likely

Starts
Wed, Nov 4 3:00 AM CST
Wind
15 mph S
Destination
60°F
Wednesday

Chance Rain Showers

Starts
Wed, Nov 4 6:00 AM CST
Wind
10 to 15 mph SW

Driving Route Map

The map below follows the saved road route between Sycamore and Somonauk.

Turn-by-Turn Driving Directions

Step-by-step road directions between Sycamore and Somonauk.

  1. 1

    Start on West State Street

    7 m · 8 sec · West State Street

  2. 2

    Turn left onto Somonauk Street

    127 m · 11 sec · Somonauk Street

  3. 3

    Turn right onto West Elm Street

    632 ft · 17 sec · West Elm Street

  4. 4

    Continue on DeKalb Avenue

    2.9 mi · 5 min · DeKalb Avenue

  5. 5

    Continue on Sycamore Road

    2 mi · 4 min · Sycamore Road

  6. 6

    Turn slight left onto North 4th Street

    3.4 mi · 7 min · North 4th Street

  7. 7

    Continue on State Route 23

    11.7 mi · 17 min · State Route 23

  8. 8

    Continue on State Route 23

    7.2 mi · 11 min · State Route 23

  9. 9

    Turn sharp left

    3.9 mi · 6 min

  10. 10

    Arrive at your destination

    0 m · 1 sec · West Church Street

Car Route Details

A richer read on the saved driving route between Sycamore and Somonauk.

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
10 steps
4 turns on the saved route
Ramps & Exits
0
0 merges, 0 ramps or exits
Navigation Density
31.9 / 100 mi
Decision points by distance
Main Roads
State Route 23
19 mi · 61%
North 4th Street
3.35 mi · 11%
DeKalb Avenue
2.94 mi · 9%
Sycamore Road
1.97 mi · 6%
West Elm Street
0.12 mi
Somonauk Street
0.08 mi
Longest Stretch

State Route 23

Continue on State Route 23

11.7 mi · 00h 17m

Route Summary

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

Trip Read

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.

Drive Time
00h 51m
Day trip friendly
Same-Day Return
01h 42m
Round-trip wheel time
Road vs Air
+6.8 mi
24.5 mi direct line
Halfway Stop
Waterman
00h 25m from Sycamore
Leave By
4:48 PM CST
Morning start is best
Weather Watch

Rain Showers Likely leaving Sycamore and Chance Rain Showers near Somonauk.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Sycamore to Somonauk?

The road trip is about 31.3 miles (50.4 km) and usually takes 00h 51m 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?

Waterman is a useful midpoint, sitting about 15.7 miles from Sycamore and 15.7 miles from Somonauk.

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

The direct path is about 24.5 miles (39.5 km), while the road route adds roughly 6.8 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 CST. If you want a more comfortable same-day return, try to leave by 4:48 PM CST.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $5.18 one way or $10.35 round trip. Estimated CO2 is about 9.8 kg one way.

What should you check before leaving?

Before you leave, expect Rain Showers Likely around Sycamore and Chance Rain Showers near Somonauk.

Stop Ideas Near Waterman

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

Mid-route Guidance
Local place coverage is thin around Waterman, 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 Waterman.

RAIL

Plano

23 mi away
101 West Main Street
RAIL

Mendota station

38 mi away
783 Main Street
RAIL

Naperville

52 mi away
105 E. Fourth Ave.
BUS

Rockford, Illinois

58 mi away
7559 Walton St.

Flight Path Map

This map shows the direct air route between Sycamore and Somonauk. Straight-line distance: 24.55 mi (39.51 km).

Photo coming soon

#1 Sycamore

City in Illinois

Population18,317
Coordinates41.9889200, -88.6867500
Altitude266
CountryUnited States
Somonauk

#2 Somonauk

City in Illinois, United States of America

Population1,860
Coordinates41.6336400, -88.6811900
Altitude209
CountryUnited States
Start: Sycamore (-88.68675, 41.98892)
End: Somonauk (-88.68119, 41.63364)

Estimated Travel Time

Distance: 50 km by road

SpeedTime
30 mph (48.3 km/h)01h 02m
40 mph (64.37 km/h)00h 46m
50 mph (80.47 km/h)00h 37m
60 mph (96.56 km/h)00h 31m
70 mph (112.65 km/h)00h 26m
80 mph (129 km/h)00h 23m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.1 gal
4.18 L · about $5.18
Round trip
$10.35
2.2 gal · 8.36 L
Estimated CO2
9.8 kg one way
Round trip: 19.6 kg / 43 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.71 $5.18 $10.35
Mid-grade $5.32 $5.85 $11.69
Premium $5.87 $6.46 $12.92
Diesel $6.62 $7.29 $14.57

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 Illinois · Nov 03, 2026

There is no time difference between Sycamore and Somonauk. The current time is 06:32:18.

Distance to Other Cities

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