How far is Port Huron, MI from Flint, MI?
The driving distance from Port Huron, MI to Flint, MI is about 67 miles (107.8 km), with a travel time of about 01h 00m by car.
- The straight-line flight distance is about 63.9 miles (102.8 km).
- For a round trip, plan for roughly 02h 00m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
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 01h 00m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Lapeer County, Michigan, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Port Huron and Flint.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Huron and Flint.
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1
Start on the route
26 m · 12 sec
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2
Turn left onto Union Street
47 m · 9 sec · Union Street
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3
Turn right onto Military Street
1153 ft · 21 sec · Military Street
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4
Turn right onto Griswold Street
66 mi · 1 hr 8 min · Griswold Street
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5
Take the exit slight right toward Downtown
1792 ft · 47 sec
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6
Turn right onto Saginaw Street
1092 ft · 41 sec · Saginaw Street
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7
Turn right onto East Fifth Street
121 m · 16 sec · East Fifth Street
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8
Turn left onto Harrison Street
116 m · 21 sec · Harrison Street
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9
Turn left onto East Court Street
72 m · 9 sec · East Court Street
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10
Turn left
21 m · 7 sec
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11
Turn right
28 m · 7 sec
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12
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Port Huron and Flint.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Griswold Street
Turn right onto Griswold Street
66 mi · 01h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Sunny leaving Port Huron and Sunny near Flint.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Huron to Flint?
The road trip is about 67 miles (107.8 km) and usually takes 01h 00m 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?
Imlay City is a useful midpoint, sitting about 33.4 miles from Port Huron and 33.5 miles from Flint.
How much longer is the road route than the straight-line distance?
The direct path is about 63.9 miles (102.8 km), while the road route adds roughly 3.1 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 EDT. If you want a more comfortable same-day return, try to leave by 4:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.90 one way or $17.80 round trip. Estimated CO2 is about 21 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Port Huron and Sunny near Flint.
Stop Ideas Near Imlay City
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Imlay City.
Lapeer station
Flint station
Pontiac Transportation Center
Port Huron
Flight Path Map
This map shows the direct air route between Port Huron and Flint. Straight-line distance: 63.87 mi (102.79 km).
#1 Port Huron
City in Michigan, United States
| Population | 28,631 |
| Coordinates | 42.9708600, -82.4249100 |
| Altitude | 184 |
| Country | United States |
#2 Flint
The largest city in Genesee County, Michigan.
| Population | 94,968 |
| Coordinates | 43.0125300, -83.6874600 |
| Altitude | 229 |
| Country | United States |
End: East Court Street (-83.687592, 43.012684)
Estimated Travel Time
Distance: 108 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 13m |
| 40 mph (64.37 km/h) | 01h 40m |
| 50 mph (80.47 km/h) | 01h 20m |
| 60 mph (96.56 km/h) | 01h 06m |
| 70 mph (112.65 km/h) | 00h 57m |
| 80 mph (129 km/h) | 00h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $8.90 | $17.80 |
| Mid-grade | $4.25 | $10.04 | $20.07 |
| Premium | $4.65 | $10.98 | $21.97 |
| Diesel | $5.30 | $12.52 | $25.03 |
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 Michigan · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.