The drive from Iron Mountain, MI to Flint, MI covers 421.2 miles and takes about 7h 47m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 75, West Lakeshore Drive, US-2/US-41/M-35 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 218.3 miles on I 75.
At current regular gas prices, budget about $65.85 one way before food or hotel costs.
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
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
210.6 miles from Iron Mountain, MI
A natural place for your longest stop of the day
, about 4h 9m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 7h 47m. Total distance: 421.2 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
This is a 7h 47m highway drive covering 421.2 miles, with most of the trip on I 75 and West Lakeshore Drive. The longest continuous stretch is about 218.3 miles on I 75.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 75 is the longest continuous segment at about 218.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 75 and West Lakeshore Drive. There are only a few real navigation decisions along the way. The trickiest moment comes around 51.7 miles in near US 2; US 41; M 35 / North Lincoln Road.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 7h 47m, endurance matters. Plan breaks every 2-3 hours. The 10 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 51.7 miles (US 2; US 41; M 35 / North Lincoln Road): Lane positioning matters here; at 286.3 miles (I 75): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 410.5 miles (I 475 / UAW Freeway): Highway fork - watch signs carefully.
Critical Maneuvers
5 of 10 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
51.7 mi into trip|~1h 2m in|US 2; US 41; M 35 / North Lincoln Road
Turn left onto US 2; US 41; M 35 / North Lincoln Road
Lane positioning matters here
Use the left lane.
6
286.3 mi into trip|~5h 28m in|I 75
Keep slight left at fork onto I 75 toward I 75: Saginaw, Detroit
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 75: Saginaw, Detroit
6
410.5 mi into trip|~7h 35m in|I 475 / UAW Freeway
Keep slight right at fork onto I 475 / UAW Freeway toward I 475: Downtown Flint
Highway fork - watch signs carefully
Exit 125
Toward I 475: Downtown Flint
5
420.5 mi into trip|~7h 45m in
Take the exit toward M 21
Exit ramp - move to the correct lane early
Exit 7
Toward M 21
6
420.9 mi into trip|~7h 46m in|M 21 / East Court Street
Turn right onto M 21 / East Court Street
Lane positioning matters here
Use the right lane.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Iron Mountain, MI to Flint, MI, road signs begin pointing toward Detroit along the way.
Detroit
286.3 mi in|~5h 28m|via I 75
Main Roads
Road
Distance
Duration
I 75
218.3 mi
3h 44m
West Lakeshore Drive
88.4 mi
1h 44m
US-2/US-41/M-35
46 mi
55m
US 2
25.2 mi
31m
Eighth Avenue
20.4 mi
23m
UAW Freeway
10 mi
10m
US-2/US-141
5.2 mi
5m
Murray Road
2.2 mi
2m
Longest stretch:
I 75
— 218.3 mi, about 3h 44m
Turn-by-Turn Driving Directions
Step-by-step road directions between Iron Mountain, MI and Flint, MI.
1
Start on M 95
115 ft·6 sec·East Ludington Street
2
Turn right onto US 2; US 141
1.9 mi·2 min·South Stephenson Avenue
3
Continue on US 2; US 141
5.2 mi·5 min·US-2/US-141
4
Continue on US 2
2.2 mi·2 min·Murray Road
5
Turn straight onto US 2
20 mi·23 min·Eighth Avenue
6
Continue on US 2; US 41
22 mi·27 min·US 2; US 41
7
Turn left onto US 2; US 41; M 35
2.1 mi·3 min·North Lincoln Road
Use the left lane.
8
Continue on US 2; US 41; M 35
46 mi·55 min·US-2/US-41/M-35
9
Continue on US 2
88 mi·1 hr 44 min·West Lakeshore Drive
10
Continue on US 2
3.2 mi·3 min·US 2
11
Continue on US 2
0.5 mi·46 sec·US-2 West
12
Take the exit
0.3 mi·44 sec
Toward I 75 South: Mackinac Bridge
13
Merge onto I 75
94 mi·1 hr 37 min·I 75
14
Keep slight left at fork onto I 75
124 mi·2 hr 7 min·I 75
Toward I 75: Saginaw, Detroit
15
Keep slight right at fork onto I 475
10.0 mi·10 min·UAW Freeway
Exit 125Toward I 475: Downtown Flint
16
Take the exit
0.2 mi·31 sec
Exit 7Toward M 21
17
Continue on Chavez Drive
0.2 mi·34 sec·Chavez Drive
18
Turn right onto M 21
0.2 mi·31 sec·East Court Street
Use the right lane.
19
Turn left
68 ft·6 sec
20
Turn right
93 ft·6 sec
21
Arrive at destination
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 210.6 miles from Iron Mountain, MI, or about 4h 9m into the drive.
The longest continuous stretch on this route runs about 218.3 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 93 miles or 1h 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 210.6 miles or 4h 9m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 44m
Traffic, exits, and arrival timing usually matter more near Flint, MI than in the middle of the route.
Before You Leave
+
Open the route before leaving Iron Mountain, MI 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Iron Mountain, MI
This is one driving day of about 421.2 miles and 7h 47m.
Your first comfortable stop window is around 93 miles from Iron Mountain, MI.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 75 for about 218.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 210.6 mi from Iron Mountain, MI
· 4h 9m into the drive
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $44 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
126.4
1
$44.23
$20.22
Efficient EV
105.3
1
$36.86
$16.85
EV Truck/SUV
168.5
2
$58.97
$26.96
Gas CO2
147 kg
EV CO2
49 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 18, 2026
Origin
Iron Mountain, MI
Afternoon
in Iron Mountain on Saturday
Local time
12:18 PM
CDT
Current temp
43°F
Slight Chance Snow Showers
W 15 mph17% chanceLive forecast
Flood Warning
Flood Warning issued April 18 at 11:50AM EDT until April 19 at 8:00PM EDT by NWS Gaylord MI
Flood Warning
Flood Warning issued April 18 at 11:31AM EDT until April 21 at 5:00AM EDT by NWS Detroit/Pontiac MI
Destination
Flint, MI
Afternoon
in Flint on Saturday
Local time
1:18 PM
EDT
Current temp
64°F
Showers And Thunderstorms Likely
W 17 mph65% chanceLive forecast
Flood Warning
Flood Warning issued April 18 at 11:50AM EDT until April 19 at 8:00PM EDT by NWS Gaylord MI
Flood Warning
Flood Warning issued April 18 at 11:31AM EDT until April 21 at 5:00AM EDT by NWS Detroit/Pontiac MI
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
1 hour later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
21 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
7h 47m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Iron Mountain, MI to Flint, MI covers 421.2 miles and takes about 7h 47m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 75, West Lakeshore Drive, US-2/US-41/M-35. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 210.6 miles from Iron Mountain, MI. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $65.85 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
The route itself is not hard, but at 7h 47m, endurance matters. Plan breaks every 2-3 hours. The 10 decision points are all manageable with basic attention.
The main spots that need attention: at 51.7 miles (US 2; US 41; M 35 / North Lincoln Road): Lane positioning matters here; at 286.3 miles (I 75): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 410.5 miles (I 475 / UAW Freeway): Highway fork - watch signs carefully.
On the drive from Iron Mountain, MI to Flint, MI, road signs begin pointing toward Detroit along the way.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
