Naperville to East Alton is 259.8 miles and takes about 5h 1m via I 55 and State Route 140, with a fuel budget near $41 and enough daylight to finish in a day. This trip stays within the Midwest region, entirely within Illinois, so expect a familiar landscape. Given its mostly highway profile and relatively short duration, this route is well-suited for a single-day excursion. It's a straightforward drive that should get you to your destination without much fuss.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
129.9 miles from Naperville, IL
A natural place for your longest stop of the day
, about 2h 31m into the drive
.
Main Roads
Road
Distance
Duration
I 55
233.3 mi
4h 12m
State Route 140
9.6 mi
13m
North Washington Street
5.3 mi
11m
Weber Road
3.9 mi
7m
East Bethalto Drive
1.8 mi
3m
East Airline Drive
1.3 mi
3m
North Bellwood Drive
0.9 mi
1m
East State Street
0.7 mi
1m
Longest stretch:
I 55
— 233.3 mi, about 4h 12m
Traffic on I-55
Hour-of-day weekday pattern from 12 FHWA count stations on your route.
Peak
4 PM
~1,689 veh/hr typical
· worst 2,115
Quietest
2 AM
~152 veh/hr
Peak-to-quiet ratio
11.1×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville, IL and East Alton, IL.
1
Start on North Washington Street
5.3 mi·11 min·North Washington Street
Use the left lane.
2
Turn right onto Washington Street
0.5 mi·51 sec·Washington Street
3
Continue on Weber Road
3.9 mi·7 min·Weber Road
4
Take the ramp
0.4 mi·48 sec
Toward I 55 South: Bloomington
5
Merge onto I 55
106 mi·1 hr 55 min·I 55
Use the right lane.
6
Keep slight right at fork onto I 55
65 mi·1 hr 10 min·I 55
Toward I 55 South: Saint Louis, SpringfieldUse the straight / slight right lanes.
7
Keep slight left at fork onto I 55
63 mi·1 hr 7 min·I 55
Toward I 55 South: Saint Louis
8
Take the exit
0.3 mi·43 sec
Toward IL 140: Alton, Greenville
9
Turn right onto IL 140
0.7 mi·1 min·East State Street
10
Continue on IL 140
9.6 mi·13 min·State Route 140
11
Continue on IL 140
1.8 mi·3 min·East Bethalto Drive
12
Turn left onto IL 111
0.9 mi·1 min·North Bellwood Drive
13
Turn right onto East Airline Drive
1.3 mi·3 min·East Airline Drive
14
Continue on West Airline Court
0.6 mi·1 min·West Airline Court
15
Continue on Berkshire Boulevard
0.6 mi·1 min·Berkshire Boulevard
16
Continue on East Main Street
0.4 mi·1 min·East Main Street
17
Turn left onto North Shamrock Street
0.3 mi·48 sec·North Shamrock Street
18
Turn sharp right onto West Saint Louis Avenue
389 ft·8 sec·West Saint Louis Avenue
19
Turn right onto North Pence Street
40 ft·1 sec·North Pence Street
20
Arrive at destination
North Pence Street
Trip Plan
For this 5-hour drive, leaving in the morning will give you plenty of daylight to complete the trip. Since it's a single-day route, you can be flexible with your timing. The longest stretch without a significant change in road type is 233.3 miles on I 55, so plan a break before you hit the surface streets. Keep an eye on your fuel, especially as you move onto State Route 140, where services might be less frequent than on the interstate. The estimated fuel cost is around $41, so budget accordingly.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 129.9 miles from Naperville, IL, or about 2h 31m into the drive.
The longest continuous stretch on this route runs about 233.3 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 57 miles or 1h 12m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 129.9 miles or 2h 31m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h
Traffic, exits, and arrival timing usually matter more near East Alton, IL than in the middle of the route.
Before You Leave
+
Open the route before leaving Naperville, IL so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Naperville, IL
This is one driving day of about 259.8 miles and 5h 1m.
Your first comfortable stop window is around 57 miles from Naperville, IL.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 55 for about 233.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 11
5 decision points cluster between mile 10 and 259.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
10 mi into trip|~20m in|I 55
Merge onto I 55
Merge point - match speed before joining. Lane positioning matters here
Use the right lane.
8
115.8 mi into trip|~2h 16m in|I 55
Keep slight right at fork onto I 55 toward I 55 South: Saint Louis, Springfield
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 55 South: Saint Louis, Springfield
5
180.7 mi into trip|~3h 26m in|I 55
Keep slight left at fork onto I 55 toward I 55 South: Saint Louis
Highway fork - watch signs carefully
Toward I 55 South: Saint Louis
5
243.3 mi into trip|~4h 33m in
Take the exit toward IL 140: Alton, Greenville
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward IL 140: Alton, Greenville
6
259.7 mi into trip|~5h 1m in|West Saint Louis Avenue
Turn sharp right onto West Saint Louis Avenue
Sharp turn - reduce speed on approach
Fuel & Cost
Regular Gas
$38.37 one way
$76.73 round trip
$3.75/gal25.4 MPG avg91 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.14
$42.36
$84.71
premium
$4.72
$48.24
$96.47
diesel
$4.80
$49.06
$98.11
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$38
Meals
$25–$50
Total
$63–$88
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 90.9 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $27 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
77.9
0
$27.28
$12.47
Efficient EV
65
0
$22.73
$10.39
EV Truck/SUV
103.9
1
$36.37
$16.63
Gas CO2
91 kg
EV CO2
30 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 Jul 18, 2026
Origin
Naperville, IL
Late night
in Naperville on Sunday
Local time
5:13 AM
CDT
Current temp
74°F
Mostly Clear
SW 5 to 10 mph3% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 3:04AM CDT until July 21 at 7:00PM CDT by NWS St Louis MO
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
Destination
East Alton, IL
Late night
in East Alton on Sunday
Local time
5:13 AM
CDT
Current temp
73°F
Mostly Clear
W 5 mph2% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 3:04AM CDT until July 21 at 7:00PM CDT by NWS St Louis MO
Heat Advisory
Heat Advisory issued July 18 at 1:35AM CDT until July 18 at 7:00PM CDT by NWS Quad Cities IA IL
85°F
Bloomington, IL
130 mi in
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 1m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Springfield 1908 Race Riot National Monument
National Monument
In August 1908, a large White mob attacked the Black community in Springfield, Illinois. Rioters destroyed homes and businesses and lynched two men. The event led to the founding of the National Assoc...
4 mi from route
~10 min detour
Free
near mile 179.1
In a growing Chicago neighborhood, diverse people and stories intertwined. All were seeking opportunity. Some succeeded. Others were limited—by race, gender, or economic status. Their stories came tog...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is predominantly highway driving, with 94% of the trip on major roads. You'll spend the bulk of your time, a stretch of 233.3 miles, on I 55. Around mile 233, you'll transition off the interstate onto surface roads, including State Route 140 and North Washington Street, for the final portion of your drive. Expect a noticeable increase in local traffic and more frequent intersections as you approach East Alton.
94% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 233.3 mi on I 55.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 55 and State Route 140. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes around 10 miles in near I 55.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 259.8 miles you will encounter 11 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 10 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 115.8 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 180.7 miles (I 55): Highway fork - watch signs carefully.
Elevation Profile
Mostly flat terrain
792 ft432 ft
Total Climb
374 ft
Total Descent
651 ft
Highest Point
792 ft
~111.3 mi in
Elevation Range
360 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Naperville, IL and East Alton, IL, road signs point toward Springfield and Greenville.
Naperville is a bedroom community in the Chicagoland area. In 2008, Money magazine ranked Naperville third on its list of the 100 best places to live in the United States.
Doable as a same-day drive at 5h 1m. Total distance: 259.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 1m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (94%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 233.3 miles on I 55. The full list of main roads is in the Roads section above.
Yes — we found about 26 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 26 rest areas along the route for bathroom stops.
The main spots that need attention: at 10 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 115.8 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 180.7 miles (I 55): Highway fork - watch signs carefully.
Yes — Springfield 1908 Race Riot National Monument and Pullman National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.0 hours each way, a round trip means 10.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at East Alton, IL before the return drive.
