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Trip from Flagg, IL to Chicago, IL

Last recalculated Apr 16, 2026

Drive Time

1h 51m

Distance

86.9 mi

140 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$14

one way

Best Time to Leave

Save up to 24 min
4 AM
1h 44m ★
6 AM
1h 52m
8 AM
2h 8m
10 AM
1h 57m
12 PM
1h 56m
3 PM
1h 58m
5 PM
2h 7m
8 PM
1h 47m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Flagg, IL, IL

Flagg, IL

Josh Withers

Downtown chicago-il

Chicago, IL

Otoniel Alvarado

Trip Overview

Traveling from Flagg to Chicago covers 86.9 miles, typically taking about 1 hour and 51 minutes of driving time. This route is perfectly suited for a quick day trip, allowing you to reach the city without the need for an overnight stay. You should budget approximately $14 for fuel to complete the journey. Since both locations are situated within the Midwest, the drive reflects the regional landscape you might expect in northern Illinois. It is a straightforward transit that works well for those looking to reach the urban center efficiently.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

43.5 miles from Flagg, IL

A natural place for your longest stop of the day , about 56m into the drive .

Drive Character

Expect a turn-heavy local drive rather than a monotonous interstate haul, as this route maintains a zero-percent highway share. Because you are navigating local roads for the entire 86.9-mile distance, you will need to remain alert and focused on changing directions throughout the trip. The character of the road is defined by its winding local nature, which contrasts sharply with high-speed highway travel. You will find that the lack of long, uninterrupted stretches makes for a more engaged, albeit slower, experience behind the wheel.

This route has more turning and local-road decision points than a simple highway run.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Ronald Reagan Memorial Tollway is the longest continuous segment at about 64.3 miles.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 5.1 miles in near IL 38 / 4th Avenue.

Route Complexity 8/10

Demanding - plan breaks and stay ahead of the key maneuvers

This drive requires moderate attention. Across 86.9 miles you will encounter 18 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: at 5.1 miles (IL 38 / 4th Avenue): Navigation decision point; at 7.3 miles (I 88; IL 110 / Ronald Reagan Memorial Tollway): Merge point - match speed before joining. Lane positioning matters here; at 65.6 miles (I 88; IL 110 / Ronald Reagan Memorial Tollway): Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 18 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

5
5.1 mi into trip | ~11m in | IL 38 / 4th Avenue

Turn right onto IL 38 / 4th Avenue

Navigation decision point

5
7.3 mi into trip | ~15m in | I 88; IL 110 / Ronald Reagan Memorial Tollway

Merge onto I 88; IL 110 / Ronald Reagan Memorial Tollway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
6
65.6 mi into trip | ~1h 21m in | I 88; IL 110 / Ronald Reagan Memorial Tollway

Keep slight right at fork onto I 88; IL 110 / Ronald Reagan Memorial Tollway

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes.
7
84.9 mi into trip | ~1h 47m in

Keep slight left at fork toward I 90 East, I 94 East: Indiana

Highway fork - watch signs carefully. Multiple destination signs - pick the right one

Toward I 90 East, I 94 East: Indiana
7
85.9 mi into trip | ~1h 48m in

Take the exit toward 18th Street

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 52C Toward 18th Street

Main Roads

Road Distance Duration
Ronald Reagan Memorial Tollway 64.3 mi 1h 13m
Eisenhower Expressway 13.2 mi 18m
Lincoln Avenue 4 mi 7m
IL 251 1.7 mi 2m
South Grange Road 1.1 mi 4m
Dan Ryan Expressway 0.8 mi 1m
West Cermak Road 0.2 mi <1m
South Union Avenue 0.2 mi <1m
Longest stretch: Ronald Reagan Memorial Tollway — 64.3 mi, about 1h 13m

Turn-by-Turn Driving Directions

Step-by-step road directions between Flagg, IL and Chicago, IL.

1

Start on East Titus Road

62 ft · 4 sec · East Titus Road
2

Turn right onto South Grange Road

1.1 mi · 4 min · South Grange Road
3

Turn right onto IL 38

4.0 mi · 7 min · Lincoln Avenue
4

Turn left onto IL 38

399 ft · 10 sec · 8th Street
5

Turn right onto IL 38

265 ft · 4 sec · 4th Avenue
6

Turn right onto IL 251

1.7 mi · 2 min · IL 251
Use the right lane.
7

Turn left

0.4 mi · 53 sec
8

Merge onto I 88; IL 110

58 mi · 1 hr 5 min · Ronald Reagan Memorial Tollway
Use the straight / slight right lanes.
9

Keep slight right at fork onto I 88; IL 110

6.0 mi · 7 min · Ronald Reagan Memorial Tollway
Use the straight / slight right lanes.
10

Merge onto I 290; IL 110

13 mi · 18 min · Eisenhower Expressway
Use the straight / slight right lanes.
11

Take the exit

0.1 mi · 15 sec
Toward I 90 East, I 94 East: Indiana, Taylor Street, Roosevelt Road
12

Keep slight left at fork

0.2 mi · 29 sec
Toward I 90 East, I 94 East: Indiana
13

Merge onto I 90; I 94

0.8 mi · 1 min · Dan Ryan Expressway
14

Take the exit

0.3 mi · 34 sec
Exit 52C Toward 18th Street Use the slight right lane.
15

Turn slight left onto South Union Avenue

0.2 mi · 30 sec · South Union Avenue
16

Turn right onto South Canalport Avenue

505 ft · 12 sec · South Canalport Avenue
17

Turn left onto South Halsted Street

0.1 mi · 18 sec · South Halsted Street
18

Turn right onto West Cermak Road

0.2 mi · 24 sec · West Cermak Road
19

Turn left

152 ft · 11 sec
20

Turn right

0.2 mi · 58 sec
21

Arrive at destination

Trip Plan

Given the 1 hour and 51 minute duration, you have plenty of flexibility to plan your departure time around Chicago’s peak traffic hours. Since there are no scheduled stops on this route, make sure your vehicle is fueled and ready before you head out, keeping your $14 budget in mind. Being a non-highway route, keep a close eye on local speed limits and signage as you transition between rural and urban settings. Taking this route as a single, continuous push is the most efficient way to travel, so consider packing snacks and water to avoid needing mid-drive breaks.

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 43.5 miles from Flagg, IL, or about 56m into the drive.
The longest continuous stretch on this route runs about 64.3 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 19 miles or 28m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 43.5 miles or 56m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 1h 31m

Traffic, exits, and arrival timing usually matter more near Chicago, IL than in the middle of the route.

Before You Leave

+

Open the route before leaving Flagg, IL so your first major turns are already loaded.

Day 1

Settle into the route from Flagg, IL

This is one driving day of about 86.9 miles and 1h 51m.

Your first comfortable stop window is around 19 miles from Flagg, IL.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Ronald Reagan Memorial Tollway for about 64.3 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 43.5 mi from Flagg, IL · 56m into the drive

Mid-route town

Meal stop

Naperville, IL

43 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Popular next leg

Naperville, IL to Chicago, IL

30.8 mi · 44m

Pacing Suggestions

DeKalb, IL

Fuel and coffee

A short stop after about 19 miles helps settle the day before fatigue starts building.

Aurora, IL

Meal break

The midpoint is around 43.5 miles from Flagg, IL, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Ronald Reagan Memorial Tollway if your tank is already low. That segment runs about 64.3 miles.

Arriving in Chicago, IL

The final approach into Chicago, IL usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$13.59 one way

$27.17 round trip

$3.97/gal 25.4 MPG avg 30 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $14.92 $29.83
premium $4.89 $16.72 $33.45
diesel $5.61 $19.19 $38.37

Estimated Tolls: $3.86

Reagan Memorial Tollway (64.3 mi) $3.86

Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.

Estimated Trip Cost (one way, 1 person)

Fuel

$14

Tolls

$4

Meals

$25–$50

Total

$42–$67

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 30.4 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $9 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 26.1 0 $9.12 $4.17
Efficient EV 21.7 0 $7.60 $3.48
EV Truck/SUV 34.8 0 $12.17 $5.56

Gas CO2

30 kg

EV CO2

10 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 14, 2026

Origin

Flagg, IL

Evening in Flagg on Wednesday

Local time

7:24 PM

CDT

Current temp

40°F

Unavailable

Live forecast

Destination

Chicago, IL

Evening in Chicago on Wednesday

Local time

7:24 PM

CDT

Current temp

58°F

Scattered Showers And Thunderstorms

W 10 mph 75% chance Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

18 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 51m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Flagg, IL to Chicago, IL covers 86.9 miles and takes about 1h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Ronald Reagan Memorial Tollway, Eisenhower Expressway, Lincoln Avenue. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 43.5 miles from Flagg, IL. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $13.59 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 86.9 miles you will encounter 18 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 5.1 miles (IL 38 / 4th Avenue): Navigation decision point; at 7.3 miles (I 88; IL 110 / Ronald Reagan Memorial Tollway): Merge point - match speed before joining. Lane positioning matters here; at 65.6 miles (I 88; IL 110 / Ronald Reagan Memorial Tollway): Highway fork - watch signs carefully. Lane positioning matters here.
The route from Flagg, IL to Chicago, IL does not surface many named destination signs beyond the main corridor.

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Return Trip

Chicago, IL to Flagg, IL

Plan the drive back the other way.

86.5 mi 1h 51m

Explore more options from Flagg, IL or browse trips ending in Chicago, IL.

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