How far is Niles, IL from Marion, IL?

The driving distance from Niles, IL to Marion, IL is about 274.6 miles (442 km), with a travel time of about 05h 45m by car.

  • The straight-line flight distance is about 240.2 miles (386.5 km).
  • For a round trip, plan for roughly 11h 30m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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
274.62 mi
05h 45m
Flight
240.14 mi
386.47 km direct

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

Learn Distance

Choose another destination from Niles.

Flight Distance

Direct air line
240.14 mi
Kilometers
386.47 km
Flight Time
00h 28m

Driving Distance

Road route
274.62 mi
Kilometers
441.96 km
Drive Time
05h 45m

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 05h 45m.

Arrival Snapshot
Arrive in Marion
Thu, Oct 15, 9:07 PM CDT
Return by in Niles
Fri, Oct 16, 2:52 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Niles
2026-10-15T15:22
Arrive Marion
Thu, Oct 15, 9:07 PM CDT
Route Timing
05h 45m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
11:45 AM to 1:45 PM CDT

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

Leave by
5:30 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Niles
9:00 PM CDT
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
Thomasboro
IL

City in Illinois, United States of America

From Niles
137.4 mi
02h 52m
To Marion
137.3 mi
02h 52m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
63°F
Today

Rain Showers

Starts
Thu, Oct 15 11:00 AM CDT
Wind
5 to 10 mph SE
Destination
84°F
Thursday

Showers And Thunderstorms Likely

Starts
Thu, Oct 15 6:00 AM CDT
Wind
1 to 12 mph S

Driving Route Map

The map below follows the saved road route between Niles and Marion.

Turn-by-Turn Driving Directions

Step-by-step road directions between Niles and Marion.

  1. 1

    Start on North Waukegan Road

    4 m · 5 sec · North Waukegan Road

  2. 2

    Turn right onto West Howard Street

    3171 ft · 1 min · West Howard Street

  3. 3

    Turn right onto North Caldwell Avenue

    2.9 mi · 4 min · North Caldwell Avenue

  4. 4

    Take the ramp straight toward I 94 East

    1370 ft · 35 sec

  5. 5

    Merge slight left onto Edens Expressway

    2.1 mi · 2 min · Edens Expressway

  6. 6

    Continue on Kennedy Expressway

    8.1 mi · 12 min · Kennedy Expressway

  7. 7

    Continue on Dan Ryan Expressway

    2.4 mi · 3 min · Dan Ryan Expressway

  8. 8

    Keep slight left to continue on Dan Ryan Expressway (Express)

    8.8 mi · 12 min · Dan Ryan Expressway (Express)

  9. 9

    Keep slight right to continue on I 57 South: Memphis

    168.9 mi · 3 hr 6 min

  10. 10

    Take the exit slight right toward IL 16 East: Charleston

    1676 ft · 47 sec

  11. 11

    Turn straight onto Charleston Avenue East

    1.2 km · 1 min · Charleston Avenue East

  12. 12

    Continue on Illinois Route 16

    6 mi · 8 min · Illinois Route 16

  13. 13

    Continue on West Lincoln Avenue

    1.8 mi · 3 min · West Lincoln Avenue

  14. 14

    Turn right onto 18th Street

    1.6 mi · 2 min · 18th Street

  15. 15

    Continue on Illinois Route 130

    1.2 km · 1 min · Illinois Route 130

  16. 16

    Continue on Route 130

    10 mi · 15 min · Route 130

  17. 17

    Continue on County Road 1825 East

    2 mi · 3 min · County Road 1825 East

  18. 18

    Continue on County Road 1775 E

    1.3 km · 1 min · County Road 1775 E

  19. 19

    Continue on North Haughton Highway

    1945 ft · 33 sec · North Haughton Highway

  20. 20

    Continue on 1700E

    1.3 mi · 2 min · 1700E

  21. 21

    Continue on North Haughton Highway

    4 mi · 6 min · North Haughton Highway

  22. 22

    Continue on County Road 1700E

    2.1 mi · 3 min · County Road 1700E

  23. 23

    Continue on North 1250th Street

    13.3 mi · 20 min · North 1250th Street

  24. 24

    Turn left onto South Van Buren Street

    11 mi · 15 min · South Van Buren Street

  25. 25

    Continue on County Road 1100 East

    6.7 mi · 9 min · County Road 1100 East

  26. 26

    Continue on North West Street

    2.5 mi · 4 min · North West Street

  27. 27

    Continue on County Road 1150

    12.3 mi · 17 min · County Road 1150

  28. 28

    Turn right onto 2050N

    2.9 mi · 11 min · 2050N

  29. 29

    Arrive at your destination

    0 m · 1 sec · 2050N

Car Route Details

A richer read on the saved driving route between Niles and Marion.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
29 steps
6 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
10.6 / 100 mi
Decision points by distance
Main Roads
I 57 South
169 mi · 62%
North 1250th Street
13.3 mi · 5%
County Road 1150
12.3 mi · 4%
South Van Buren Street
11 mi · 4%
Route 130
9.97 mi · 4%
Dan Ryan Expressway (Express)
8.83 mi · 3%
Longest Stretch

I 57 South

Keep slight right to continue on I 57 South: Memphis

169 mi · 03h 06m

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
05h 45m
Long day trip
Same-Day Return
11h 30m
Round-trip wheel time
Road vs Air
+34.4 mi
240.2 mi direct line
Halfway Stop
Thomasboro
02h 52m from Niles
Leave By
5:30 AM CDT
Early departure recommended
Weather Watch

Rain Showers leaving Niles and Showers And Thunderstorms Likely near Marion.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Niles to Marion?

The road trip is about 274.6 miles (442 km) and usually takes 05h 45m 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?

Thomasboro is a useful midpoint, sitting about 137.4 miles from Niles and 137.3 miles from Marion.

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

The direct path is about 240.2 miles (386.5 km), while the road route adds roughly 34.4 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 CDT. If you want a more comfortable same-day return, try to leave by 5:30 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $45.20 one way or $90.41 round trip. Estimated CO2 is about 86.1 kg one way.

What should you check before leaving?

Before you leave, expect Rain Showers around Niles and Showers And Thunderstorms Likely near Marion.

Stop Ideas Near Thomasboro

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

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

RAIL

Rantoul

8 mi away
West Sangamon and North Kentucky Aves.
RAIL

Illinois Terminal

15 mi away
45 East University Ave.
BUS

Danville, Illinois

49 mi away
379 Lynch Road
RAIL

Gilman

60 mi away
US Hwy 24 & West Wenona St.

Flight Path Map

This map shows the direct air route between Niles and Marion. Straight-line distance: 240.14 mi (386.47 km).

Niles

#1 Niles

City in Trumbull County, Ohio

Population28,615
Coordinates42.0189200, -87.8028400
Altitude194
CountryUnited States
Marion

#2 Marion

City in and the county seat of Williamson County, Illinois, United States

Population17,417
Coordinates38.5511600, -88.1083700
Altitude127
CountryUnited States
Start: Niles (-87.80284, 42.01892)
End: Marion (-88.10837, 38.55116)

Estimated Travel Time

Distance: 442 km by road

SpeedTime
30 mph (48.3 km/h)09h 09m
40 mph (64.37 km/h)06h 51m
50 mph (80.47 km/h)05h 29m
60 mph (96.56 km/h)04h 34m
70 mph (112.65 km/h)03h 55m
80 mph (129 km/h)03h 25m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
9.69 gal
36.68 L · about $45.20
Round trip
$90.41
19.38 gal · 73.36 L
Estimated CO2
86.1 kg one way
Round trip: 172.2 kg / 380 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.67 $45.20 $90.41
Mid-grade $5.29 $51.28 $102.56
Premium $5.84 $56.56 $113.12
Diesel $6.57 $63.67 $127.35

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 · Oct 15, 2026

There is no time difference between Niles and Marion. The current time is 15:22:10.

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.